01245 Area Code - Chelmsford

The 01245 area code is used for Chelmsford (County of Essex) and the areas directly surrounding Chelmsford, which includes 15 distinct locations. Most 01245 numbers are used for landlines. However, they can also be purchased by companies or organizations to be used for services that don’t have any connection to the Chelmsford area.

Previously, the area used 0245 as their area code. This changed in April 1995 during the phONEday event, where it was changed to the 01245 area code to accommodate the growing population and supplement the shrinking supply of phone numbers in Essex.

Number Structure

Area CodeNumber
01245xx xxxx

Locations Covered

Cost of calling 01245 numbers

Typically, calls to the 01245 area code are very affordable and are some of the cheapest apart from freephone numbers. During peak times when calling from a landing, expect to pay between 10p to 12p per minute. In the evening or on the weekend, it will cost you between 5p and 10p per minute. If you are calling from a mobile phone, these costs increase to 30p to 50p per minute.

Prefixes and Providers

CodeProviderAssigned
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01245 00Calltracks Limited02/10/2018
01245 14Virgin Media Limited17/03/2016
01245 20Gamma Telecom Holdings Ltd05/04/2004
01245 21BT15/07/1994
01245 22BT15/07/1994
01245 23BT15/07/1994
01245 24BT15/07/1994
01245 25BT15/07/1994
01245 26BT15/07/1994
01245 27BT15/07/1994
01245 28BT15/07/1994
01245 29BT04/02/2008
01245 30TalkTalk Communications Limited14/10/2013
01245 31BT30/11/1998
01245 32BT15/07/1994
01245 33AQL Wholesale Ltd01/11/2004
01245 34BT15/07/1994
01245 35BT15/07/1994
01245 36BT15/07/1994
01245 370Linear Telecoms Limited05/10/2010
01245 371Media Hawk Ltd26/09/2011
01245 372Barritec Limited20/09/2011
01245 373Colt Technology Services21/10/2011
01245 374Internexus Networks Limited18/11/2011
01245 375Bicom Systems EURL02/03/2012
01245 376ICC Networks Ltd12/04/2012
01245 377Simwood eSMS Limited09/02/2012
01245 378IOVOX Limited03/04/2012
01245 379Ziron Limited27/07/2012
01245 38BT15/07/1994
01245 39BT15/07/1994
01245 40BT15/07/1994
01245 410Inclarity Communications Limited30/11/2010
01245 411Inclarity Communications Limited30/11/2010
01245 412Inclarity Communications Limited30/11/2010
01245 413Inclarity Communications Limited30/11/2010
01245 415Inclarity Communications Limited30/11/2010
01245 42BT15/07/1994
01245 43Gamma Telecom Holdings Ltd29/09/2016
01245 44BT15/07/1994
01245 45BT15/07/1994
01245 46BT15/07/1994
01245 47BT15/07/1994
01245 48Barritel Limited13/02/2006
01245 49BT15/07/1994
01245 50BT15/07/1994
01245 51BT15/07/1994
01245 520Liquid 11 Limited13/06/2013
01245 521Sky UK Limited15/08/2013
01245 522iHub 2 Limited18/05/2016
01245 523Sky UK Limited15/08/2013
01245 524Vodafone Ltd (Thus)17/01/2012
01245 525Vodafone Ltd (Thus)17/01/2012
01245 526Kalnet4U Ltd08/05/2013
01245 527Invoco Ltd18/10/2013
01245 528Vodafone Ltd (Thus)17/01/2012
01245 529Vodafone Ltd (Thus)17/01/2012
01245 54BT15/07/1994
01245 550CenturyLink Communications UK Limited25/07/2011
01245 552CenturyLink Communications UK Limited25/07/2011
01245 553CenturyLink Communications UK Limited25/07/2011
01245 555CenturyLink Communications UK Limited25/07/2011
01245 559CenturyLink Communications UK Limited25/07/2011
01245 56Vodafone Ltd (C&W)03/10/2013
01245 57GCI Network Solutions Ltd20/04/2017
01245 580Six Degrees Technology Group Limited14/01/2020
01245 584Six Degrees Technology Group Limited14/01/2020
01245 59Vodafone Ltd (Energis)26/05/2006
01245 60Virgin Media Limited17/03/2016
01245 61Virgin Media Limited17/03/2016
01245 623Timico Limited12/04/2016
01245 630Sky UK Limited24/06/2013
01245 631Sky UK Limited24/06/2013
01245 632Sky UK Limited25/06/2013
01245 633Sky UK Limited25/06/2013
01245 64Citrus Telecommunications Ltd09/08/2005
01245 658Vodafone Ltd (C&W)11/08/2015
01245 659Vodafone Ltd (C&W)29/06/2018
01245 66TGL Services (UK) Ltd02/02/2015
01245 670Internet of Things Limited13/08/2018
01245 671Media Hawk Ltd21/10/2015
01245 672Sky UK Limited24/12/2015
01245 673Gamma Telecom Holdings Ltd22/12/2015
01245 674Fido Telecom Limited19/07/2016
01245 675Sky UK Limited02/09/2015
01245 676Affiniti Integrated Solutions Limited04/02/2016
01245 678Gamma Telecom Holdings Ltd14/09/2016
01245 679IOVOX Limited21/09/2015
01245 681Virgin Media Limited20/06/2012
01245 682Virgin Media Limited20/06/2012
01245 683Virgin Media Limited20/06/2012
01245 684Virgin Media Limited20/06/2012
01245 685Virgin Media Limited20/06/2012
01245 686Virgin Media Limited20/06/2012
01245 687Virgin Media Limited20/06/2012
01245 688Virgin Media Limited20/06/2012
01245 690TalkTalk Communications Limited31/08/2011
01245 697TalkTalk Communications Limited31/08/2011
01245 698TalkTalk Communications Limited31/08/2011
01245 699TalkTalk Communications Limited31/08/2011
01245 70Vodafone Ltd (C&W)03/10/2013
01245 71Invade International Ltd20/01/2016
01245 72Easynet Enterprise Services Limited10/10/2005
01245 73FleXtel Limited19/10/2005
01245 75IV Response Limited04/07/2005
01245 760Digitech Solutions Global Limited22/06/2012
01245 761Numbergroup Network Ltd29/04/2019
01245 762Content Guru Ltd12/10/2012
01245 763Sky UK Limited25/06/2013
01245 764Hello Telecom (UK) Limited02/01/2013
01245 765Minotaur Telecom Limited01/02/2013
01245 766West Cloud Contact Solutions Ltd15/01/2013
01245 767Sky UK Limited25/06/2013
01245 768Affiniti Integrated Solutions Limited11/04/2013
01245 769XoverX Ltd02/05/2013
01245 77Verizon UK Ltd03/08/2005
01245 78Redcentric Solutions Limited05/06/2015
01245 790WAVECREST NETWORKS LIMITED16/12/2019
01245 791WAVECREST NETWORKS LIMITED16/12/2019
01245 795WAVECREST NETWORKS LIMITED16/12/2019
01245 800Magrathea Telecommunications Limited16/11/2011
01245 801Magrathea Telecommunications Limited16/11/2011
01245 806Magrathea Telecommunications Limited16/11/2011
01245 807Magrathea Telecommunications Limited16/11/2011
01245 808Magrathea Telecommunications Limited16/11/2011
01245 809Magrathea Telecommunications Limited16/11/2011
01245 81Syntec Limited17/11/2005
01245 83TTNC Limited25/11/2013
01245 840Belgacom International Carrier Services SA20/06/2016
01245 841Adepteo Limited16/01/2017
01245 842Sky UK Limited23/09/2016
01245 843Sky UK Limited08/06/2017
01245 844Hemshore Ltd16/05/2016
01245 845IOVOX Limited23/12/2016
01245 846Number Services Ltd.22/11/2018
01245 847Gamma Telecom Holdings Ltd04/04/2017
01245 848Nexbridge Communications Limited17/03/2016
01245 849Fuse 2 Communications Ltd03/07/2017
01245 85Nationwide Telephone Assistance Ltd02/09/2005
01245 860BT24/10/2013
01245 861Digital Mail Limited02/02/2007
01245 862Tabsoft Limited20/02/2007
01245 863TelNG Limited28/02/2007
01245 864Virgin Media Limited04/09/2006
01245 865Virgin Media Limited04/09/2006
01245 866Localphone Limited24/04/2007
01245 867Nodemax Limited26/04/2007
01245 868Teledesign Ltd19/09/2006
01245 869Resilient PLC11/12/2006
01245 87Net Solutions Europe Limited18/11/2005
01245 888Served Up Limited01/03/2013
01245 889Served Up Limited01/03/2013
01245 890Voiceflex Limited24/07/2007
01245 891(aq) Limited trading as aql17/10/2011
01245 892Net-Work Internet Ltd21/09/2007
01245 893VoIP-Un Limited26/10/2007
01245 894Timico Limited29/11/2007
01245 895Affiniti Integrated Solutions Limited12/11/2007
01245 896Timico Limited15/03/2016
01245 897Commi Holdings Ltd21/11/2016
01245 898Vodafone Ltd (C&W)03/10/2013
01245 899Telecom2 Ltd11/09/2009
01245 901TalkTalk Communications Limited13/02/2013
01245 902Solutios Limited28/08/2008
01245 904Voxbone SA18/09/2008
01245 905Inet Telecoms Ltd (Voipfone)24/09/2008
01245 906Starcomm Ltd02/10/2008
01245 907GCI Network Solutions Ltd19/04/2017
01245 908IPV6 Limited27/01/2009
01245 909Telecoms World PLC09/03/2009
01245 910Andrews & Arnold (Numbers) Ltd26/02/2009
01245 911Mars Communications Limited04/02/2009
01245 912Vectone Mobile Limited29/06/2009
01245 913TeleWare Group PLC21/02/2013
01245 915CFL Communications Limited24/09/2009
01245 916Nexus Telecommunications Limited25/09/2009
01245 917Sky UK Limited16/12/2014
01245 918i.net communications Group PLC12/01/2010
01245 919IDE Group Voice Limited18/12/2009
01245 920WIGHTFIBRE LIMITED18/01/2010
01245 921Voicenet Solutions Ltd19/02/2010
01245 922Buzz Networks Limited24/02/2010
01245 923Suretec Systems Ltd29/04/2010
01245 924Calltracks Limited19/09/2013
01245 925Windsor Telecom Ltd19/07/2010
01245 926Numbergroup Network Ltd08/11/2010
01245 927Atomstream Limited15/11/2010
01245 928Numbers Plus Ltd28/07/2011
01245 929VoiceHost Limited26/08/2010
01245 930Redwood Technologies Ltd15/11/2018
01245 931TalkTalk Communications Limited09/09/2014
01245 932Calltracks Limited21/10/2014
01245 933BT23/01/2015
01245 934Vonage Limited26/01/2015
01245 935I.T Communications Limited11/03/2015
01245 936Lanonyx Telecom Limited03/03/2015
01245 937Alnitak GmbH14/01/2016
01245 938M247 Ltd18/05/2015
01245 939YayYay Limited23/04/2015
01245 940Orbtalk Limited01/12/2017
01245 941Entanet International Ltd05/12/2017
01245 942Zapappi Ltd05/01/2018
01245 943Gamma Telecom Holdings Ltd16/01/2018
01245 944IP Voice Networks Ltd20/09/2017
01245 946Telappliant Ltd05/04/2018
01245 947Gamma Telecom Holdings Ltd03/08/2017
01245 948TalkTalk Communications Limited13/04/2018
01245 949Invosys Limited23/08/2017
01245 950Gamma Telecom Holdings Ltd19/06/2018
01245 951Gamma Telecom Holdings Ltd11/09/2018
01245 952Affiniti Integrated Solutions Limited23/07/2018
01245 953Club Communications21/09/2018
01245 954Telecom 10 Ltd30/05/2018
01245 955Colt Technology Services04/06/2018
01245 960Infinity Tracking Ltd22/03/2019
01245 961BT02/10/2018
01245 962Infinity Tracking Ltd09/04/2019
01245 963BT26/03/2019
01245 964SiPalto Ltd05/11/2019
01245 965Epsilon Telecommunications Ltd03/05/2019
01245 966ICUK Computing Services Limited12/08/2019
01245 967Gamma Telecom Holdings Ltd12/08/2019
01245 968Gamma Telecom Holdings Ltd12/02/2019
01245 969DIDWW Ireland Limited15/10/2018
01245 970Dial 9 Communications Limited09/12/2019
01245 97124 SEVEN CLOUD COMMUNICATIONS LTD17/01/2020
01245 976BT07/01/2020
01245 977EG TECHNOLOGIES LIMITED21/01/2020
01245 979Gamma Telecom Holdings Ltd06/01/2020
01245 987Spitfire Network Services Limited21/07/2011

Map of Chelmsford

Other Area Codes in this County (Essex)

CodeCity
01206Colchester
01255Clacton-on-Sea
01268Basildon
01277Brentwood
01371Great Dunmow
01375Grays Thurrock
01376Braintree
01621Maldon
01702Southend-on-Sea
01799Saffron Walden

All Area Codes About 01, 02 Numbers