0870 Numbers
- History of 084 and 087 area codes
- Cost to call 0870 numbers
- All Prefixes and Providers
- Other 4-digit Prefixes
0870 numbers are service numbers that are charged at special rates. Called the ‘inbound number’, the 0870 number is an incoming call-only number that is used by many companies throughout the United Kingdom. An incoming call-only number means that they can’t usually be used to make outbound calls.
There can be several reasons someone would want to have a 0870 number. For one, a 0870 number can disguise a caller’s geographic location. This can be beneficial for companies that function nationally, since there is no specially assigned area code for the company. This makes it more likely that customers won’t be turned off by a long distance area code calling them.
Another benefit of 0870 numbers is that, once it’s assigned to you, you can route it to any number in the world. So if you change your location, your number can go with you. This is ideal for expanding businesses.
History of 084 and 087 area codes
Originally introduced in 1996, 0870 numbers were for services that cost the same as standard local rate phone calls. In 2001, the 0370 and 0670 prefixes were annulled and their numbers were also transferred to the 0870 code.
In the mid-2000s, the cost of 0870 numbers changed and they began to be charged at a range of rates. Following this in 2015, all 084 and 087 numbers were switched to a new two-part charging structure that uses both the service charge and the access charge. Companies are restricted from using a 0870 number for post-sales customer service lines.
Cost to call 0870 numbers
Calling 0870 numbers are charged an access charge that is paid to your phone company and a service charge that is set by the company or organization you are calling. The service charge is usually between 0p to 7p per minutes and the access charge ranges from 8p to 65 p per minute.
Any 084 numbers are charged in the same way and have the same technical features. Any numbers that start with 0870, regardless of the following digits, cost the same. After the changes in the mid-2000s that saw 0870 numbers skyrocket, there have been recent changes that have drastically reduced the cost of calling these numbers. British Telecom (BT) has aided this by making sure that costs related to 0870 numbers are usually free (usually up to a certain amount per month). If customers aren’t on a BT call plan, most landline providers still average the costs of calling these numbers between 3p and 5p per minute.
Calling a 0870 number from a landline can cost more than 10p per minute; however, some providers include it alongside numbers starting with 01 and 02 minutes in inclusive call packages. Choose a provider from the table below for more information on their pricing.
| Caller’s Provider | Access charge (per minute) | Service charge (per minute) |
|---|---|---|
| Asda Mobile | 8p | Between 0p and 13p |
| BT | Between 0p and 31.41p, depending on call plan | |
| EE | Between 11p and 67p, depending on call plan | |
| Giffgaff | 25p | |
| Kcom | 15p | |
| Lycamobile | 23p | |
| O2 | 65p | |
| Plusnet | 9.58p | |
| Post Office | 14p | |
| Sky | 15p | |
| Talk Mobile | 15p | |
| TalkTalk | 12.5p from landline 25p from mobile | |
| Tesco Mobile | 25p | |
| Three | 65p | |
| Virgin Media | From 17p to 58p, depending on call plan | |
| Vodafone | 45p for pay-as-you-go customers 65p for pay monthly customers | |
| Zen Internet | 11p |
Prefixes and Providers
| Code | Provider | Assigned |
|---|
| Loading data… |
| 0870 000 | Lumen Technologies UK Limited | 01/09/1997 |
| 0870 001 | Lumen Technologies UK Limited | 18/09/1998 |
| 0870 002 | Newtel Limited | 16/04/2003 |
| 0870 004 | Pipex Communications PLC | 14/07/2000 |
| 0870 005 | IV Response Limited | 09/03/2002 |
| 0870 006 | Adviqo UK Limited | 12/06/2012 |
| 0870 007 | Sala Trading Ltd | 22/02/2000 |
| 0870 008 | Adviqo UK Limited | 12/06/2012 |
| 0870 009 | Telefonica UK Limited | 08/11/2010 |
| 0870 010 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 011 | TalkTalk Communications Limited | 29/06/2006 |
| 0870 012 | Virgin Media Limited | 11/08/1997 |
| 0870 013 | Virgin Media Limited | 06/10/1997 |
| 0870 015 | Virgin Media Limited | 06/10/1999 |
| 0870 016 | Virgin Media Limited | 29/11/2000 |
| 0870 017 | Redcentric Solutions Limited | 25/05/2016 |
| 0870 020 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 021 | Digitech Solutions Global Limited | 28/06/2012 |
| 0870 022 | Icron Network Limited | 08/08/2006 |
| 0870 023 | Adviqo UK Limited | 12/06/2012 |
| 0870 024 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 025 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 026 | Orange Business Holdings UK Limited | 26/02/2013 |
| 0870 027 | Syntec Limited | 02/11/1999 |
| 0870 028 | KDDI Europe Ltd | 06/08/1999 |
| 0870 029 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 031 | Voicetec Systems Ltd | 27/01/2003 |
| 0870 032 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 033 | Six Degrees Technology Group Limited | 08/04/2020 |
| 0870 034 | Gamma Telecom Holdings Ltd | 24/06/2002 |
| 0870 035 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 036 | New Call Telecom Ltd | 18/11/2014 |
| 0870 037 | Twelve Telecom Limited | 21/05/2013 |
| 0870 038 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 039 | 8x8 UK Limited | 19/02/2010 |
| 0870 040 | Virgin Media Limited | 04/11/1997 |
| 0870 041 | Swiftnet Ltd | 31/08/1999 |
| 0870 042 | Telecoms World PLC | 20/03/2002 |
| 0870 043 | Virgin Media Limited | 08/04/2016 |
| 0870 044 | Admiral Telecom Limited | 31/07/2006 |
| 0870 045 | Twelve Telecom Limited | 22/02/2017 |
| 0870 046 | Dynamic Mobile Billing Limited | 28/01/2000 |
| 0870 047 | Citrus Telecommunications Ltd | 30/06/2006 |
| 0870 048 | Verizon UK Limited | 31/08/2001 |
| 0870 049 | Verizon UK Limited | 16/03/2002 |
| 0870 050 | Vodafone Ltd (Thus) | 28/02/2012 |
| 0870 051 | Vodafone Ltd (Thus) | 28/02/2012 |
| 0870 052 | Vodafone Ltd (Thus) | 28/02/2012 |
| 0870 053 | Vodafone Ltd (Thus) | 28/02/2012 |
| 0870 054 | Vodafone Ltd (Thus) | 28/02/2012 |
| 0870 055 | Vodafone Ltd (Thus) | 28/02/2012 |
| 0870 056 | Vodafone Ltd (Thus) | 28/02/2012 |
| 0870 058 | Vodafone Ltd (Thus) | 28/02/2012 |
| 0870 059 | Timico Partner Services Limited | 02/04/2003 |
| 0870 060 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 061 | Alphatalk Limited | 05/10/2004 |
| 0870 062 | Dynamic Mobile Billing Limited | 24/12/2002 |
| 0870 063 | Affiniti Integrated Solutions Limited | 26/04/2011 |
| 0870 064 | TelXL Ltd | 19/02/2008 |
| 0870 065 | Content Guru Limited | 02/11/2007 |
| 0870 066 | TalkTalk Communications Limited | 09/10/2003 |
| 0870 067 | TelXL Ltd | 07/02/2002 |
| 0870 068 | Magrathea Telecommunications Limited | 28/12/2001 |
| 0870 069 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 070 | Vodafone Limited | 21/08/1996 |
| 0870 071 | Vodafone Limited | 21/08/1996 |
| 0870 072 | Vodafone Limited | 21/08/1996 |
| 0870 073 | Vodafone Limited | 21/08/1996 |
| 0870 074 | Vodafone Limited | 21/08/1996 |
| 0870 075 | Vodafone Limited | 21/08/1996 |
| 0870 076 | Vodafone Limited | 21/08/1996 |
| 0870 077 | Vodafone Limited | 21/08/1996 |
| 0870 078 | Vodafone Limited | 21/08/1996 |
| 0870 079 | Vodafone Limited | 21/08/1996 |
| 0870 080 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 081 | Gamma Telecom Holdings Ltd | 20/11/2017 |
| 0870 082 | Nexus Telecommunications Limited | 05/04/2005 |
| 0870 083 | Global Electroteks Ltd | 16/02/2001 |
| 0870 084 | Vodafone Ltd (Thus) | 28/02/2012 |
| 0870 085 | Vodafone Ltd (Thus) | 18/03/2013 |
| 0870 086 | Vodafone Ltd (Thus) | 28/02/2012 |
| 0870 087 | TalkTalk Communications Limited | 30/05/2007 |
| 0870 088 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 089 | Alnitak GmbH | 25/02/2015 |
| 0870 090 | BT | 01/07/1998 |
| 0870 092 | Vodafone Ltd (Thus) | 10/05/2010 |
| 0870 093 | 24 Seven Communications Ltd | 12/09/2011 |
| 0870 094 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 096 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 097 | Redcentric Solutions Limited | 25/05/2016 |
| 0870 099 | Colt Technology Services | 06/08/1998 |
| 0870 100 | Digital Space Group Limited | 24/12/2015 |
| 0870 101 | Digital Space Group Limited | 24/12/2015 |
| 0870 102 | Digital Space Group Limited | 24/12/2015 |
| 0870 103 | Digital Space Group Limited | 24/12/2015 |
| 0870 104 | Digital Space Group Limited | 24/12/2015 |
| 0870 105 | Digital Space Group Limited | 24/12/2015 |
| 0870 106 | Digital Space Group Limited | 24/12/2015 |
| 0870 107 | Digital Space Group Limited | 24/12/2015 |
| 0870 108 | Digital Space Group Limited | 24/12/2015 |
| 0870 109 | Digital Space Group Limited | 24/12/2015 |
| 0870 110 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 111 | TalkTalk Communications Limited | 09/10/2003 |
| 0870 112 | TalkTalk Communications Limited | 09/10/2003 |
| 0870 114 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 116 | Vodafone Ltd (Thus) | 10/05/2010 |
| 0870 118 | Pulsant (Scotland) Limited | 20/02/2009 |
| 0870 119 | Cloud9 Communications Limited | 23/04/2010 |
| 0870 120 | Affiniti Integrated Solutions Limited | 16/11/1995 |
| 0870 121 | Affiniti Integrated Solutions Limited | 16/11/1995 |
| 0870 122 | Affiniti Integrated Solutions Limited | 16/11/1995 |
| 0870 123 | Affiniti Integrated Solutions Limited | 16/11/1995 |
| 0870 124 | Affiniti Integrated Solutions Limited | 16/11/1995 |
| 0870 125 | Affiniti Integrated Solutions Limited | 16/11/1995 |
| 0870 126 | Affiniti Integrated Solutions Limited | 16/11/1995 |
| 0870 127 | Affiniti Integrated Solutions Limited | 16/11/1995 |
| 0870 128 | Affiniti Integrated Solutions Limited | 16/11/1995 |
| 0870 129 | Affiniti Integrated Solutions Limited | 16/11/1995 |
| 0870 130 | Colt Technology Services | 05/07/1999 |
| 0870 131 | Colt Technology Services | 05/07/1999 |
| 0870 132 | Colt Technology Services | 05/07/1999 |
| 0870 133 | Colt Technology Services | 05/07/1999 |
| 0870 134 | Colt Technology Services | 05/07/1999 |
| 0870 135 | Colt Technology Services | 05/07/1999 |
| 0870 136 | Colt Technology Services | 05/07/1999 |
| 0870 137 | Colt Technology Services | 05/07/1999 |
| 0870 138 | Colt Technology Services | 05/07/1999 |
| 0870 139 | Colt Technology Services | 05/07/1999 |
| 0870 140 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 141 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 142 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 143 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 144 | Idt Global Ltd | 26/01/2002 |
| 0870 145 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 146 | Affiniti Integrated Solutions Limited | 14/10/2004 |
| 0870 147 | Affiniti Integrated Solutions Limited | 14/10/2004 |
| 0870 148 | Affiniti Integrated Solutions Limited | 14/10/2004 |
| 0870 149 | Affiniti Integrated Solutions Limited | 14/10/2004 |
| 0870 150 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 151 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 152 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 153 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 154 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 155 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 156 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 157 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 158 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 159 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 160 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 161 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 162 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 163 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 164 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 165 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 166 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 167 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 168 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 169 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 170 | Vodafone Ltd (Thus) | 28/02/2012 |
| 0870 173 | Zamir Telecom Limited | 11/03/2011 |
| 0870 174 | Digital Space Group Limited | 24/12/2015 |
| 0870 175 | Telecom2 Limited | 29/07/2009 |
| 0870 176 | DRD Communications Limited | 07/09/2004 |
| 0870 178 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 179 | TalkTalk Communications Limited | 27/09/2011 |
| 0870 180 | 24 Seven Communications Ltd | 26/10/2015 |
| 0870 181 | Call Telecom Ltd | 29/07/2005 |
| 0870 182 | Magrathea Telecommunications Limited | 28/03/2012 |
| 0870 183 | Gamma Telecom Holdings Ltd | 29/05/2013 |
| 0870 184 | Nextec UK Limited | 26/11/2013 |
| 0870 185 | Digital Space Group Limited | 24/12/2015 |
| 0870 186 | Core Telecom Limited | 03/05/2012 |
| 0870 187 | Adviqo UK Limited | 12/06/2012 |
| 0870 188 | Dynamic Mobile Billing Limited | 29/10/2002 |
| 0870 190 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 191 | BT | 31/01/2001 |
| 0870 192 | BT | 08/02/2001 |
| 0870 194 | BT | 08/02/2001 |
| 0870 195 | BT | 08/02/2001 |
| 0870 196 | Virgin Media Limited | 10/09/1997 |
| 0870 197 | BT | 18/06/2002 |
| 0870 198 | Citrus Telecommunications Ltd | 11/07/2014 |
| 0870 199 | Vodafone Ltd (C&W) | 06/05/2014 |
| 0870 200 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 201 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 202 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 203 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 204 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 205 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 206 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 207 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 208 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 209 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 210 | Vodafone Ltd (C&W) | 06/05/2014 |
| 0870 211 | Dynamic Mobile Billing Limited | 01/07/2004 |
| 0870 212 | Hospedia Limited | 04/07/2003 |
| 0870 213 | Numbers Telecom Limited | 01/02/2016 |
| 0870 214 | Affiniti Integrated Solutions Limited | 10/09/2003 |
| 0870 215 | Westend Telecoms ltd | 22/12/2015 |
| 0870 217 | Telecom 10 Ltd | 03/03/2016 |
| 0870 218 | Core Telecom Limited | 01/03/2006 |
| 0870 219 | SpeakUp BV | 12/04/2012 |
| 0870 220 | TalkTalk Communications Limited | 09/10/2003 |
| 0870 221 | Vodafone Business Solutions Limited | 03/03/2000 |
| 0870 222 | Colt Technology Services | 19/08/2015 |
| 0870 224 | Gamma Telecom Holdings Ltd | 13/02/2002 |
| 0870 225 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 226 | Business Broadcast Communications Limited | 19/10/2009 |
| 0870 228 | Phone Buddy Limited | 15/07/2003 |
| 0870 229 | Relax Telecom Limited | 09/02/2009 |
| 0870 230 | Redcentric Solutions Limited | 25/05/2016 |
| 0870 231 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 232 | TalkTalk Communications Limited | 14/10/2013 |
| 0870 233 | Affiniti Integrated Solutions Limited | 16/01/2008 |
| 0870 234 | Virgin Media Limited | 08/04/2016 |
| 0870 235 | Affiniti Integrated Solutions Limited | 26/04/2011 |
| 0870 236 | Affiniti Integrated Solutions Limited | 26/04/2011 |
| 0870 237 | Affiniti Integrated Solutions Limited | 14/10/2004 |
| 0870 238 | BT | 19/07/1999 |
| 0870 239 | Affiniti Integrated Solutions Limited | 14/10/2004 |
| 0870 240 | BT | 18/12/1997 |
| 0870 241 | BT | 18/12/1997 |
| 0870 242 | BT | 18/12/1997 |
| 0870 243 | BT | 18/12/1997 |
| 0870 245 | Affiniti Integrated Solutions Limited | 16/01/2008 |
| 0870 246 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 247 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 248 | Telecom2 Limited | 29/07/2009 |
| 0870 249 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 250 | Telecom 10 Ltd | 25/11/2009 |
| 0870 251 | Redcentric Solutions Limited | 25/05/2016 |
| 0870 252 | Affiniti Integrated Solutions Limited | 10/09/2003 |
| 0870 253 | JT (Jersey) Limited | 08/12/2004 |
| 0870 255 | Telecom 10 Ltd | 25/11/2009 |
| 0870 257 | Lycatel (Ireland) Limited | 01/03/2006 |
| 0870 258 | Microtalk Europe Limited | 12/05/2016 |
| 0870 259 | 24 Seven Communications Ltd | 23/09/2011 |
| 0870 260 | Budget Numbers Limited | 06/08/2004 |
| 0870 261 | JT (Guernsey) Limited | 19/01/2005 |
| 0870 262 | Premier Voicemail Ltd | 05/12/2001 |
| 0870 263 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 264 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 265 | IPV6 Limited | 21/01/2009 |
| 0870 266 | BT | 07/02/2005 |
| 0870 267 | Lumen Technologies UK Limited | 12/12/2001 |
| 0870 268 | Lumen Technologies UK Limited | 12/12/2001 |
| 0870 269 | 24 Seven Communications Ltd | 17/03/2008 |
| 0870 270 | Virgin Media Limited | 13/03/2000 |
| 0870 271 | Virgin Media Limited | 13/03/2000 |
| 0870 272 | Virgin Media Limited | 13/03/2000 |
| 0870 273 | Virgin Media Limited | 13/03/2000 |
| 0870 274 | Virgin Media Limited | 13/03/2000 |
| 0870 275 | Virgin Media Limited | 13/03/2000 |
| 0870 276 | Virgin Media Limited | 13/03/2000 |
| 0870 277 | Virgin Media Limited | 13/03/2000 |
| 0870 278 | Virgin Media Limited | 13/03/2000 |
| 0870 279 | Virgin Media Limited | 13/03/2000 |
| 0870 280 | TelecomIQ Limited | 22/07/2013 |
| 0870 281 | Marathon Telecom Limited | 04/07/2011 |
| 0870 282 | Virgin Media Limited | 04/11/1997 |
| 0870 283 | Virgin Media Limited | 12/10/1999 |
| 0870 284 | Affiniti Integrated Solutions Limited | 26/04/2011 |
| 0870 285 | Affiniti Integrated Solutions Limited | 26/04/2011 |
| 0870 286 | Affiniti Integrated Solutions Limited | 26/04/2011 |
| 0870 287 | QX Telecom Ltd | 15/10/2018 |
| 0870 288 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 289 | Caladan Communications Limited | 15/04/2005 |
| 0870 290 | Virgin Media Limited | 13/03/2000 |
| 0870 291 | Virgin Media Limited | 13/03/2000 |
| 0870 292 | Virgin Media Limited | 13/03/2000 |
| 0870 293 | Virgin Media Limited | 13/03/2000 |
| 0870 294 | Virgin Media Limited | 13/03/2000 |
| 0870 295 | Magrathea Telecommunications Limited | 12/01/2010 |
| 0870 296 | QX Telecom Ltd | 15/10/2018 |
| 0870 298 | Virgin Media Limited | 13/03/2000 |
| 0870 299 | Storacall Technology Limited | 19/11/2009 |
| 0870 300 | Vodafone Ltd (Thus) | 28/02/2012 |
| 0870 301 | Alphatalk Limited | 30/01/2014 |
| 0870 302 | Alphatalk Limited | 30/01/2014 |
| 0870 303 | Alphatalk Limited | 30/01/2014 |
| 0870 304 | Alphatalk Limited | 30/01/2014 |
| 0870 305 | Alphatalk Limited | 30/01/2014 |
| 0870 306 | Alphatalk Limited | 30/01/2014 |
| 0870 307 | Alphatalk Limited | 30/01/2014 |
| 0870 308 | Alphatalk Limited | 30/01/2014 |
| 0870 309 | Alphatalk Limited | 30/01/2014 |
| 0870 310 | Alphatalk Limited | 30/01/2014 |
| 0870 312 | FleXtel Limited | 28/09/2004 |
| 0870 313 | Telconline Inc | 02/08/2005 |
| 0870 314 | FleXtel Limited | 28/09/2004 |
| 0870 315 | FleXtel Limited | 28/09/2004 |
| 0870 316 | FleXtel Limited | 28/09/2004 |
| 0870 318 | Telesoft Technologies Limited | 10/05/2005 |
| 0870 319 | Dantec Enterprises Ltd | 11/08/2005 |
| 0870 320 | Virgin Media Limited | 08/04/2016 |
| 0870 321 | FleXtel Limited | 15/04/1999 |
| 0870 322 | Alnitak GmbH | 25/02/2015 |
| 0870 323 | Virgin Media Limited | 08/04/2016 |
| 0870 324 | Colt Technology Services | 09/10/1998 |
| 0870 325 | Virgin Media Limited | 08/04/2016 |
| 0870 329 | Mars Communications Limited | 07/03/2008 |
| 0870 330 | Vodafone Ltd (Thus) | 28/02/2012 |
| 0870 331 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 333 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 334 | Citrus Telecommunications Ltd | 28/08/2002 |
| 0870 335 | IV Response Limited | 11/03/2004 |
| 0870 336 | BT | 12/08/2003 |
| 0870 338 | Telecom 10 Ltd | 25/11/2009 |
| 0870 339 | Core Communication Services Limited | 13/10/2005 |
| 0870 340 | TGL Services (UK) Ltd | 02/02/2015 |
| 0870 342 | Sesui Limited | 26/10/2004 |
| 0870 343 | Spitfire Network Services Limited | 24/07/2002 |
| 0870 344 | Affiniti Integrated Solutions Limited | 10/09/2003 |
| 0870 345 | 4D INTERACTIVE LTD | 03/06/1998 |
| 0870 346 | Alnitak GmbH | 25/02/2015 |
| 0870 348 | IPV6 Limited | 21/01/2009 |
| 0870 349 | Media Telecom Ltd | 23/06/2010 |
| 0870 350 | Windsor Telecom Ltd | 24/01/2002 |
| 0870 351 | Colt Technology Services | 14/10/2003 |
| 0870 352 | Colt Technology Services | 14/10/2003 |
| 0870 353 | Colt Technology Services | 22/10/2004 |
| 0870 354 | Call Telecom Ltd | 29/07/2005 |
| 0870 356 | Core Telecommunications International Limited (Ireland) | 27/03/2009 |
| 0870 357 | Virgin Media Limited | 04/11/1997 |
| 0870 358 | Internexus Networks Limited | 18/04/2013 |
| 0870 359 | Dynamic Mobile Billing Limited | 31/03/2006 |
| 0870 360 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 361 | Vodafone Ltd (Thus) | 10/05/2010 |
| 0870 362 | 24 Seven Communications Ltd | 16/10/2015 |
| 0870 363 | InTouch Communication Services Limited | 13/05/2003 |
| 0870 364 | iHub 2 Limited | 17/06/2016 |
| 0870 365 | TalkTalk Communications Limited | 19/01/2004 |
| 0870 366 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 367 | 2-Sell-It Ltd | 15/02/2006 |
| 0870 368 | TTNC Limited | 03/10/2013 |
| 0870 369 | TTNC Limited | 03/10/2013 |
| 0870 376 | Verizon UK Limited | 09/05/2002 |
| 0870 377 | Digitech Solutions Global Limited | 07/05/2008 |
| 0870 378 | Simwood eSMS Limited | 13/07/2006 |
| 0870 379 | London Central Communications Ltd | 11/12/2006 |
| 0870 380 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 381 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 382 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 383 | Vodafone Ltd (C&W) | 06/05/2014 |
| 0870 384 | Daotec Ltd | 27/04/2005 |
| 0870 385 | Vodafone Ltd (C&W) | 18/06/2013 |
| 0870 386 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 387 | Barritel Limited | 01/03/2006 |
| 0870 388 | HighSpeed Office Limited | 26/04/2004 |
| 0870 389 | TalkTalk Communications Limited | 12/09/2006 |
| 0870 390 | Virgin Media Limited | 13/03/2000 |
| 0870 392 | Magrathea Telecommunications Limited | 01/09/2011 |
| 0870 393 | Virgin Media Limited | 13/03/2000 |
| 0870 394 | Spacetel UK Ltd | 29/09/2011 |
| 0870 396 | Virgin Media Limited | 13/03/2000 |
| 0870 397 | Magrathea Telecommunications Limited | 20/11/2012 |
| 0870 398 | Virgin Media Limited | 13/03/2000 |
| 0870 399 | Virgin Media Limited | 13/03/2000 |
| 0870 400 | BT | 17/04/1998 |
| 0870 401 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 402 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 403 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 404 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 405 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 406 | Affiniti Integrated Solutions Limited | 14/10/2004 |
| 0870 407 | Patoy Ltd | 16/08/2000 |
| 0870 408 | Vodafone Ltd (C&W) | 06/05/2014 |
| 0870 409 | Media Telecom Ltd | 23/06/2010 |
| 0870 410 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 411 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 412 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 413 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 414 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 415 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 416 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 417 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 418 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 419 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 420 | TalkTalk Communications Limited | 15/10/2013 |
| 0870 421 | TalkTalk Communications Limited | 15/10/2013 |
| 0870 422 | TalkTalk Communications Limited | 15/10/2013 |
| 0870 423 | TalkTalk Communications Limited | 15/10/2013 |
| 0870 424 | TalkTalk Communications Limited | 15/10/2013 |
| 0870 425 | TalkTalk Communications Limited | 15/10/2013 |
| 0870 426 | TalkTalk Communications Limited | 15/10/2013 |
| 0870 427 | TalkTalk Communications Limited | 15/10/2013 |
| 0870 428 | TalkTalk Communications Limited | 15/10/2013 |
| 0870 429 | TalkTalk Communications Limited | 15/10/2013 |
| 0870 430 | Nexus Telecommunications Limited | 05/04/2005 |
| 0870 432 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 433 | Chess Limited | 10/04/2018 |
| 0870 435 | Resilient PLC | 01/06/2006 |
| 0870 436 | Suretec Systems Ltd | 02/06/2010 |
| 0870 437 | QX Telecom Ltd | 20/03/2007 |
| 0870 438 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 440 | 24 Seven Communications Ltd | 20/10/2010 |
| 0870 441 | Inclarity Communications Limited | 23/01/2014 |
| 0870 442 | TalkTalk Communications Limited | 09/10/2003 |
| 0870 443 | TalkTalk Communications Limited | 09/10/2003 |
| 0870 444 | TalkTalk Communications Limited | 09/10/2003 |
| 0870 445 | Invade International Ltd | 13/01/2016 |
| 0870 446 | Digital Mail Limited | 14/08/2003 |
| 0870 447 | Assume Nothing Limited | 07/11/2007 |
| 0870 448 | Inet Telecoms Ltd (Voipfone) | 29/11/2013 |
| 0870 449 | I-NET COMMUNICATIONS GROUP PLC | 19/02/2016 |
| 0870 458 | TalkTalk Communications Limited | 09/10/2003 |
| 0870 460 | TalkTalk Communications Limited | 09/10/2003 |
| 0870 462 | 2-Sell-It Ltd | 15/02/2006 |
| 0870 463 | Rojo Trading Limited | 19/04/2007 |
| 0870 464 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 465 | Gamma Telecom Holdings Ltd | 25/03/2014 |
| 0870 466 | Promotions4All Ltd | 23/12/2009 |
| 0870 468 | TTNC Limited | 03/10/2013 |
| 0870 470 | Firstsound Ltd | 10/10/2000 |
| 0870 471 | Magrathea Telecommunications Limited | 23/05/2006 |
| 0870 472 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 473 | Nationwide Telephone Assistance Ltd | 02/09/2005 |
| 0870 474 | Barritel Limited | 14/12/2001 |
| 0870 475 | Node4 Ltd | 15/12/2005 |
| 0870 476 | Microtalk Europe Limited | 10/03/2016 |
| 0870 477 | Affiniti Integrated Solutions Limited | 17/01/2008 |
| 0870 478 | Magrathea Telecommunications Limited | 17/06/2004 |
| 0870 479 | Magrathea Telecommunications Limited | 25/11/2005 |
| 0870 480 | QX Telecom Ltd | 15/10/2018 |
| 0870 481 | TalkTalk Communications Limited | 29/06/2006 |
| 0870 482 | A2B Telecom Limited | 19/10/2011 |
| 0870 483 | Via-Vox Limited | 20/08/2008 |
| 0870 484 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 485 | PlusNet PLC | 21/09/2005 |
| 0870 486 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 487 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 489 | Red Squared Ltd | 26/09/2006 |
| 0870 490 | Magrathea Telecommunications Limited | 17/06/2004 |
| 0870 493 | Affiniti Integrated Solutions Limited | 26/04/2011 |
| 0870 494 | Yim Siam Telecom | 07/01/2004 |
| 0870 495 | Magrathea Telecommunications Limited | 27/03/2008 |
| 0870 496 | Lumen Technologies UK Limited | 04/04/2002 |
| 0870 498 | InTouch Communication Services Limited | 15/02/2016 |
| 0870 499 | Elitetele.com plc | 04/10/2002 |
| 0870 600 | BT | 14/02/1997 |
| 0870 601 | BT | 14/02/1997 |
| 0870 602 | BT | 14/02/1997 |
| 0870 603 | BT | 14/02/1997 |
| 0870 604 | BT | 14/02/1997 |
| 0870 605 | BT | 14/02/1997 |
| 0870 606 | BT | 14/02/1997 |
| 0870 607 | BT | 14/02/1997 |
| 0870 608 | BT | 14/02/1997 |
| 0870 609 | BT | 14/02/1997 |
| 0870 610 | Windsor Telecom Ltd | 13/06/2011 |
| 0870 611 | 24 Seven Communications Ltd | 17/03/2008 |
| 0870 612 | Square Systems Limited | 03/07/2006 |
| 0870 614 | Atlantic Communications Corp Ltd | 18/11/2013 |
| 0870 615 | Westend Telecoms ltd | 22/12/2015 |
| 0870 617 | Number Services Ltd. | 22/11/2018 |
| 0870 618 | Tabsoft Limited | 30/04/2007 |
| 0870 620 | Windsor Telecom Ltd | 30/03/2011 |
| 0870 621 | Number Solutions Ltd | 08/03/2007 |
| 0870 623 | TTNC Limited | 03/10/2013 |
| 0870 624 | MANX TELECOM TRADING LIMITED | 08/02/2017 |
| 0870 625 | Barritel Limited | 01/03/2006 |
| 0870 626 | Commi Holdings Limited | 16/11/2016 |
| 0870 628 | 2-Sell-It Ltd | 15/02/2006 |
| 0870 629 | 4D INTERACTIVE LTD | 23/05/2008 |
| 0870 630 | Alnitak GmbH | 02/06/2015 |
| 0870 631 | Alnitak GmbH | 02/06/2015 |
| 0870 632 | Magrathea Telecommunications Limited | 03/08/2015 |
| 0870 633 | QX Telecom Ltd | 24/07/2015 |
| 0870 634 | QX Telecom Ltd | 24/07/2015 |
| 0870 635 | Swiftnet Ltd | 11/08/2015 |
| 0870 636 | Digital Select Limited | 03/05/2017 |
| 0870 637 | QX Telecom Ltd | 24/07/2015 |
| 0870 638 | Digital Select Limited | 27/08/2015 |
| 0870 639 | QX Telecom Ltd | 24/07/2015 |
| 0870 640 | Magrathea Telecommunications Limited | 22/06/2016 |
| 0870 641 | TelNG Limited | 18/08/2016 |
| 0870 642 | Dynamic Mobile Billing Limited | 01/07/2016 |
| 0870 643 | Telecom2 Limited | 08/11/2016 |
| 0870 644 | TelecomIQ Limited | 13/05/2020 |
| 0870 645 | TelecomIQ Limited | 13/05/2020 |
| 0870 646 | BT | 31/03/2005 |
| 0870 647 | TelNG Limited | 18/08/2016 |
| 0870 648 | Gencom Technologies Ltd | 08/12/2016 |
| 0870 649 | Dynamic Mobile Billing Limited | 01/07/2016 |
| 0870 650 | Digital Select Limited | 03/05/2017 |
| 0870 651 | Digital Select Limited | 03/05/2017 |
| 0870 652 | WAVECREST NETWORKS LIMITED | 17/12/2019 |
| 0870 653 | Jtec UK Limited | 27/09/2017 |
| 0870 654 | Invoco Ltd | 23/06/2017 |
| 0870 655 | Digital Select Limited | 03/05/2017 |
| 0870 656 | Digital Select Limited | 03/05/2017 |
| 0870 657 | Digital Select Limited | 03/05/2017 |
| 0870 658 | Numbers Plus Ltd | 20/09/2017 |
| 0870 659 | I-NET COMMUNICATIONS GROUP PLC | 20/09/2017 |
| 0870 660 | Digital Select Limited | 03/05/2017 |
| 0870 661 | Digital Select Limited | 03/05/2017 |
| 0870 662 | Digital Select Limited | 03/05/2017 |
| 0870 663 | Swiftnet Ltd | 14/06/2017 |
| 0870 664 | Digital Select Limited | 03/05/2017 |
| 0870 665 | Digital Select Limited | 03/05/2017 |
| 0870 666 | Mi Telecom Limited | 20/02/2017 |
| 0870 667 | Digital Select Limited | 03/05/2017 |
| 0870 668 | Digital Select Limited | 03/05/2017 |
| 0870 669 | Swiftnet Ltd | 14/06/2017 |
| 0870 670 | Swiftel Limited | 22/10/2018 |
| 0870 700 | Virgin Media Limited | 08/04/2016 |
| 0870 701 | Virgin Media Limited | 08/04/2016 |
| 0870 702 | Virgin Media Limited | 08/04/2016 |
| 0870 703 | Virgin Media Limited | 08/04/2016 |
| 0870 704 | Virgin Media Limited | 08/04/2016 |
| 0870 705 | Virgin Media Limited | 08/04/2016 |
| 0870 706 | Virgin Media Limited | 08/04/2016 |
| 0870 707 | Virgin Media Limited | 08/04/2016 |
| 0870 708 | Virgin Media Limited | 08/04/2016 |
| 0870 709 | Virgin Media Limited | 08/04/2016 |
| 0870 710 | Vodafone Ltd (C&W) | 06/05/2014 |
| 0870 711 | Vodafone Ltd (C&W) | 06/05/2014 |
| 0870 712 | Vodafone Ltd (C&W) | 06/05/2014 |
| 0870 713 | TalkTalk Communications Limited | 09/01/2006 |
| 0870 714 | TalkTalk Communications Limited | 10/03/2006 |
| 0870 716 | TelXL Ltd | 29/06/2006 |
| 0870 718 | Real Time Telecoms Ltd | 21/08/2014 |
| 0870 720 | Daisy Communications Ltd | 17/12/2010 |
| 0870 721 | Daisy Communications Ltd | 17/12/2010 |
| 0870 722 | Daisy Communications Ltd | 17/12/2010 |
| 0870 723 | Daisy Communications Ltd | 17/12/2010 |
| 0870 724 | Daisy Communications Ltd | 17/12/2010 |
| 0870 725 | Daisy Communications Ltd | 17/12/2010 |
| 0870 726 | Daisy Communications Ltd | 17/12/2010 |
| 0870 727 | Daisy Communications Ltd | 17/12/2010 |
| 0870 728 | Daisy Communications Ltd | 17/12/2010 |
| 0870 729 | Daisy Communications Ltd | 17/12/2010 |
| 0870 730 | Colt Technology Services | 21/10/1997 |
| 0870 731 | Colt Technology Services | 24/06/1998 |
| 0870 732 | Colt Technology Services | 21/10/1997 |
| 0870 733 | Colt Technology Services | 21/10/1997 |
| 0870 734 | Colt Technology Services | 24/06/1998 |
| 0870 735 | Colt Technology Services | 24/06/1998 |
| 0870 736 | Colt Technology Services | 21/10/1997 |
| 0870 737 | Colt Technology Services | 21/10/1997 |
| 0870 738 | Colt Technology Services | 21/10/1997 |
| 0870 739 | Colt Technology Services | 21/10/1997 |
| 0870 740 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 741 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 742 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 743 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 744 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 745 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 746 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 747 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 748 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 749 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 750 | Vodafone Ltd (Thus) | 27/02/2012 |
| 0870 751 | Vodafone Ltd (Thus) | 27/02/2012 |
| 0870 752 | Vodafone Ltd (Thus) | 27/02/2012 |
| 0870 753 | Vodafone Ltd (Thus) | 27/02/2012 |
| 0870 754 | Vodafone Ltd (Thus) | 27/02/2012 |
| 0870 755 | Vodafone Ltd (Thus) | 27/02/2012 |
| 0870 756 | Vodafone Ltd (Thus) | 27/02/2012 |
| 0870 757 | Vodafone Ltd (Thus) | 27/02/2012 |
| 0870 758 | Vodafone Ltd (Thus) | 27/02/2012 |
| 0870 759 | Vodafone Ltd (Thus) | 27/02/2012 |
| 0870 760 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 761 | Colt Technology Services | 22/03/2000 |
| 0870 763 | Colt Technology Services | 22/03/2000 |
| 0870 765 | FleXtel Limited | 10/06/1999 |
| 0870 766 | Nexus Telecommunications Limited | 07/08/2000 |
| 0870 767 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 768 | Inclarity Communications Limited | 23/01/2014 |
| 0870 769 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 770 | Gamma Telecom Holdings Ltd | 04/12/2002 |
| 0870 771 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 774 | Gamma Telecom Holdings Ltd | 04/12/2002 |
| 0870 775 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 776 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 777 | Gamma Telecom Holdings Ltd | 04/12/2002 |
| 0870 778 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 779 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 780 | Buzz Networks Limited | 31/08/1999 |
| 0870 781 | Buzz Networks Limited | 02/12/2003 |
| 0870 782 | Alnitak GmbH | 25/02/2015 |
| 0870 783 | ETC Telecom Limited | 31/08/2007 |
| 0870 784 | C2C Limited | 07/10/2003 |
| 0870 785 | Lumen Technologies UK Limited | 09/07/1999 |
| 0870 787 | TalkTalk Communications Limited | 15/10/2013 |
| 0870 788 | Virtual Talk Ltd | 23/04/2014 |
| 0870 789 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 790 | Plus Telecom Limited | 18/01/2006 |
| 0870 791 | Wizaner Limited | 31/12/2001 |
| 0870 793 | Vibe Communications UK Ltd | 31/03/2008 |
| 0870 794 | TalkTalk Communications Limited | 14/10/2013 |
| 0870 795 | GTT-EMEA LTD | 14/10/2021 |
| 0870 797 | EE Limited (Orange) | 17/07/1997 |
| 0870 799 | Connect Telecom UK Limited | 27/07/2001 |
| 0870 800 | WAVECREST NETWORKS LIMITED | 17/12/2019 |
| 0870 801 | WAVECREST NETWORKS LIMITED | 17/12/2019 |
| 0870 803 | Nexus Telecommunications Limited | 14/02/2005 |
| 0870 804 | Affiniti Integrated Solutions Limited | 10/09/2003 |
| 0870 805 | Nexus Telecommunications Limited | 05/04/2005 |
| 0870 807 | Mintaka Limited | 05/03/2010 |
| 0870 808 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 810 | Networks Direct plc | 01/07/2002 |
| 0870 811 | Syntec Limited | 12/08/2003 |
| 0870 812 | Affiniti Integrated Solutions Limited | 10/09/2003 |
| 0870 813 | Alnitak GmbH | 25/02/2015 |
| 0870 814 | Vodafone Ltd (Thus) | 27/02/2012 |
| 0870 815 | Affiniti Integrated Solutions Limited | 10/09/2003 |
| 0870 816 | Callmonitor Limited | 27/09/2004 |
| 0870 817 | Sentiro Limited | 21/11/2005 |
| 0870 818 | Colt Technology Services | 24/12/2002 |
| 0870 820 | Voxbone SA | 28/12/2007 |
| 0870 821 | Served Up Limited | 03/06/2008 |
| 0870 823 | Telecoms World Direct Ltd | 22/11/2006 |
| 0870 824 | Twelve Telecom Limited | 15/03/2016 |
| 0870 825 | Barritel Limited | 01/03/2006 |
| 0870 826 | CFL Communications Ltd | 28/03/2006 |
| 0870 828 | Redwood Technologies Ltd | 15/11/2018 |
| 0870 829 | Nodemax Limited | 20/05/2008 |
| 0870 830 | Affiniti Integrated Solutions Limited | 20/03/2000 |
| 0870 831 | Affiniti Integrated Solutions Limited | 20/03/2000 |
| 0870 832 | Affiniti Integrated Solutions Limited | 20/03/2000 |
| 0870 833 | Affiniti Integrated Solutions Limited | 20/03/2000 |
| 0870 834 | Affiniti Integrated Solutions Limited | 20/03/2000 |
| 0870 835 | Affiniti Integrated Solutions Limited | 20/03/2000 |
| 0870 836 | Affiniti Integrated Solutions Limited | 20/03/2000 |
| 0870 837 | Affiniti Integrated Solutions Limited | 20/03/2000 |
| 0870 838 | Affiniti Integrated Solutions Limited | 20/03/2000 |
| 0870 839 | Affiniti Integrated Solutions Limited | 20/03/2000 |
| 0870 840 | Virgin Media Limited | 23/05/2002 |
| 0870 841 | Virgin Media Limited | 23/05/2002 |
| 0870 842 | Virgin Media Limited | 23/05/2002 |
| 0870 843 | Virgin Media Limited | 23/05/2002 |
| 0870 844 | Virgin Media Limited | 23/05/2002 |
| 0870 845 | Virgin Media Limited | 23/05/2002 |
| 0870 846 | Virgin Media Limited | 23/05/2002 |
| 0870 847 | Virgin Media Limited | 23/05/2002 |
| 0870 848 | Virgin Media Limited | 23/05/2002 |
| 0870 849 | Virgin Media Limited | 23/05/2002 |
| 0870 850 | BT | 21/11/2001 |
| 0870 851 | BT | 22/07/2004 |
| 0870 852 | Club Communications Ltd | 01/07/2000 |
| 0870 853 | Virgin Media Limited | 08/04/2016 |
| 0870 855 | Vodafone Ltd (Thus) | 27/02/2012 |
| 0870 856 | Calltracks Limited | 18/02/2014 |
| 0870 857 | Magrathea Telecommunications Limited | 09/02/2015 |
| 0870 859 | Internet of Things Limited | 14/07/2021 |
| 0870 860 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 861 | AQL Wholesale Ltd | 20/10/2004 |
| 0870 863 | Gamma Telecom Holdings Ltd | 07/02/2006 |
| 0870 864 | Gamma Telecom Holdings Ltd | 01/07/2005 |
| 0870 865 | Andrews & Arnold (Numbers) Ltd | 27/03/2009 |
| 0870 866 | FleXtel Limited | 12/07/2004 |
| 0870 868 | Inclarity Communications Limited | 23/01/2014 |
| 0870 869 | Virgin Media Limited | 21/08/2002 |
| 0870 870 | Verizon UK Limited | 16/09/1997 |
| 0870 871 | Verizon UK Limited | 16/09/1997 |
| 0870 872 | Verizon UK Limited | 16/09/1997 |
| 0870 873 | Verizon UK Limited | 16/09/1997 |
| 0870 874 | FleXtel Limited | 16/06/2000 |
| 0870 875 | Magrathea Telecommunications Limited | 22/02/2011 |
| 0870 876 | Eircom (UK) Limited | 31/01/2000 |
| 0870 877 | Visionate Ltd | 14/10/1999 |
| 0870 879 | FleXtel Limited | 06/04/2001 |
| 0870 880 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 881 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 882 | Westend Telecoms ltd | 22/12/2015 |
| 0870 883 | Westend Telecoms ltd | 22/12/2015 |
| 0870 887 | Virgin Media Limited | 08/04/2016 |
| 0870 888 | Virgin Media Limited | 08/04/2016 |
| 0870 889 | Virgin Media Limited | 08/04/2016 |
| 0870 890 | Six Degrees Technology Group Limited | 08/04/2020 |
| 0870 891 | Six Degrees Technology Group Limited | 08/04/2020 |
| 0870 892 | Six Degrees Technology Group Limited | 08/04/2020 |
| 0870 893 | Six Degrees Technology Group Limited | 08/04/2020 |
| 0870 894 | Six Degrees Technology Group Limited | 08/04/2020 |
| 0870 895 | Six Degrees Technology Group Limited | 08/04/2020 |
| 0870 896 | Six Degrees Technology Group Limited | 08/04/2020 |
| 0870 897 | Six Degrees Technology Group Limited | 08/04/2020 |
| 0870 898 | Six Degrees Technology Group Limited | 08/04/2020 |
| 0870 899 | Six Degrees Technology Group Limited | 08/10/2020 |
| 0870 900 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 901 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 902 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 903 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 904 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 905 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 906 | Vodafone Ltd (C&W) | 16/09/2013 |
| 0870 907 | Vodafone Ltd (C&W) | 13/09/2013 |
| 0870 908 | Vodafone Ltd (C&W) | 13/09/2013 |
| 0870 909 | Vodafone Ltd (C&W) | 13/09/2013 |
| 0870 910 | Numbergroup Utilities Ltd | 19/10/2010 |
| 0870 911 | BT | 28/11/2007 |
| 0870 912 | Vodafone Ltd (C&W) | 09/10/2015 |
| 0870 913 | Vodafone Ltd (C&W) | 09/10/2015 |
| 0870 915 | Vodafone Ltd (C&W) | 09/10/2015 |
| 0870 916 | Vodafone Ltd (C&W) | 09/10/2015 |
| 0870 917 | Vodafone Ltd (C&W) | 09/10/2015 |
| 0870 918 | Sports Tel Ltd | 15/11/2010 |
| 0870 919 | Phone Buddy Limited | 27/09/2004 |
| 0870 920 | Verizon UK Limited | 19/02/2001 |
| 0870 921 | Vodafone Ltd (C&W) | 09/10/2015 |
| 0870 922 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 923 | ESAT Telecommunications (UK) Ltd | 02/09/1999 |
| 0870 924 | Number Services Ltd. | 22/11/2018 |
| 0870 925 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 926 | Vodafone Ltd (C&W) | 09/10/2015 |
| 0870 927 | Vodafone Ltd (C&W) | 09/10/2015 |
| 0870 928 | Vodafone Ltd (C&W) | 09/10/2015 |
| 0870 929 | UK Number Store Limited | 16/03/2015 |
| 0870 930 | TGL Services (UK) Ltd | 02/02/2015 |
| 0870 931 | TGL Services (UK) Ltd | 02/02/2015 |
| 0870 932 | TGL Services (UK) Ltd | 02/02/2015 |
| 0870 933 | Barritel Limited | 10/12/2015 |
| 0870 934 | Gamma Telecom Holdings Ltd | 20/07/2006 |
| 0870 935 | Daisy Communications Ltd | 17/12/2010 |
| 0870 937 | Solutios Limited | 15/09/2008 |
| 0870 939 | Phone Buddy Limited | 27/09/2004 |
| 0870 941 | Swiftnet Ltd | 30/01/2007 |
| 0870 942 | Call Stream Limited | 22/08/2005 |
| 0870 943 | City Numbers Ltd | 03/05/2011 |
| 0870 944 | TalkTalk Communications Limited | 07/11/2013 |
| 0870 945 | TAP GATEWAY LTD | 02/07/2020 |
| 0870 947 | Vodafone Ltd (C&W) | 06/05/2014 |
| 0870 948 | GCI Network Solutions Ltd | 19/04/2017 |
| 0870 949 | FleXtel Limited | 10/08/2004 |
| 0870 950 | TalkTalk Communications Limited | 29/06/2006 |
| 0870 951 | Vodafone Ltd (C&W) | 06/05/2014 |
| 0870 953 | Vodafone Ltd (C&W) | 06/05/2014 |
| 0870 956 | Vodafone Ltd (C&W) | 06/05/2014 |
| 0870 957 | Numbers Telecom Limited | 12/07/2012 |
| 0870 958 | Digital Space Group Limited | 27/07/2005 |
| 0870 959 | Phone Buddy Limited | 27/09/2004 |
| 0870 961 | Vodafone Ltd (C&W) | 06/05/2014 |
| 0870 962 | NBCN Networks Ltd | 07/01/2010 |
| 0870 964 | Sound Advertising Ltd | 30/10/2007 |
| 0870 966 | Reality Network Services Limited | 09/12/2003 |
| 0870 968 | Magrathea Telecommunications Limited | 19/10/2015 |
| 0870 969 | Phone Buddy Limited | 27/09/2004 |
| 0870 970 | Atlas Interactive Group Limited | 12/10/1999 |
| 0870 973 | Telecom Essex Ltd | 21/11/2005 |
| 0870 974 | Magrathea Telecommunications Limited | 23/05/2006 |
| 0870 975 | TalkTalk Communications Limited | 15/05/2006 |
| 0870 977 | Invade International Ltd | 13/01/2016 |
| 0870 978 | Barritel Limited | 01/03/2006 |
| 0870 979 | Gamma Telecom Holdings Ltd | 26/10/2012 |
| 0870 980 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 981 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 982 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 983 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 984 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 985 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 986 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 987 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 988 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 989 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 990 | TalkTalk Communications Limited | 09/10/2003 |
| 0870 991 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 992 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 993 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 994 | TalkTalk Communications Limited | 20/07/2006 |
| 0870 996 | WAVECREST NETWORKS LIMITED | 17/12/2019 |
| 0870 997 | Maximus Communications Ltd | 15/09/2004 |
| 0870 998 | Vodafone Ltd (Energis) | 30/05/2006 |
| 0870 999 | Elitetele.com plc | 09/09/2004 |