01923 Area Code - Watford

• Number Structure
• Locations Covered
• Cost of calling 01923 numbers
• All Prefixes and Providers
• Map of Watford
• Other Area Codes in this County

The 01923 area code is used for Watford (County of Hertfordshire) and the areas directly surrounding Watford, which includes 7 distinct locations. Most 01923 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 Watford area.

Previously, the area used 0923 as their area code. This changed in April 1995 during the phONEday event, where it was changed to the 01923 area code to accommodate the growing population and supplement the shrinking supply of phone numbers in Hertfordshire.

Number Structure

Area Code	Number
01923	xx xxxx

Locations Covered

• Chorleywood
• Garston
• Kings Langley
• Northwood
• Radlett
• Rickmansworth
• Watford

Cost of calling 01923 numbers

Typically, calls to the 01923 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

Search in the table

01923 20	BT	15/07/1994
01923 21	BT	15/07/1994
01923 22	BT	15/07/1994
01923 23	BT	15/07/1994
01923 24	BT	15/07/1994
01923 25	BT	15/07/1994
01923 26	BT	15/07/1994
01923 27	BT	15/07/1994
01923 28	BT	15/07/1994
01923 29	BT	15/07/1994
01923 312	Vodafone Ltd (C&W)	01/04/2019
01923 318	Vodafone Ltd (Thus)	26/01/2012
01923 319	Vodafone Ltd (Thus)	26/01/2012
01923 320	Virgin Media Limited	27/06/2012
01923 324	Virgin Media Limited	27/06/2012
01923 33	Virgin Media Limited	11/07/1995
01923 340	Virgin Media Limited	27/06/2012
01923 341	Virgin Media Limited	27/06/2012
01923 342	Virgin Media Limited	27/06/2012
01923 343	Virgin Media Limited	27/06/2012
01923 344	Virgin Media Limited	27/06/2012
01923 345	Virgin Media Limited	27/06/2012
01923 346	Virgin Media Limited	27/06/2012
01923 349	Virgin Media Limited	27/06/2012
01923 35	Virgin Media Limited	06/11/1996
01923 36	Vodafone Ltd (C&W)	05/09/2013
01923 370	TGL Services (UK) Ltd	02/02/2015
01923 371	Sky UK Limited	28/06/2013
01923 372	Kalnet4U Ltd	04/06/2013
01923 374	TelNG Limited	01/03/2007
01923 375	TTNC Limited	15/11/2013
01923 376	Orange Business Holdings UK Limited	26/02/2013
01923 377	Virgin Media Limited	12/01/2006
01923 378	Colt Technology Services	11/05/2006
01923 379	Digitech Solutions Global Limited	26/06/2012
01923 380	VoIP-Un Limited	08/11/2007
01923 381	Voxbone SA	29/01/2008
01923 382	Digital Space Group Limited	15/03/2016
01923 383	TelXL Ltd	12/02/2008
01923 384	Telecom2 Limited	10/09/2009
01923 385	Digital Space Group Limited	04/06/2008
01923 387	Nodemax Limited	11/07/2008
01923 388	TalkTalk Communications Limited	14/02/2013
01923 389	Pulsant (Scotland) Limited	23/03/2009
01923 39	Vodafone Ltd (Energis)	26/05/2006
01923 400	Virgin Media Limited	27/06/2012
01923 401	Virgin Media Limited	27/06/2012
01923 402	Virgin Media Limited	27/06/2012
01923 403	Virgin Media Limited	27/06/2012
01923 404	Virgin Media Limited	27/06/2012
01923 405	Virgin Media Limited	27/06/2012
01923 406	Virgin Media Limited	27/06/2012
01923 41	Vodafone Ltd (C&W)	05/09/2013
01923 42	Vodafone Ltd (C&W)	05/09/2013
01923 43	Vodafone Ltd (C&W)	05/09/2013
01923 44	Virgin Media Limited	16/05/1995
01923 45	Virgin Media Limited	18/03/2016
01923 46	Virgin Media Limited	16/05/1995
01923 47	BT	15/07/1994
01923 48	BT	15/07/1994
01923 49	Virgin Media Limited	16/05/1995
01923 504	Six Degrees Technology Group Limited	14/01/2020
01923 510	TalkTalk Communications Limited	31/08/2011
01923 517	TalkTalk Communications Limited	31/08/2011
01923 518	TalkTalk Communications Limited	31/08/2011
01923 519	TalkTalk Communications Limited	31/08/2011
01923 521	VoiceHost Limited	06/10/2010
01923 522	Served Up Limited	03/06/2008
01923 523	Invade International Ltd	13/01/2016
01923 524	Redcentric Solutions Limited	05/06/2015
01923 525	Vodafone Ltd (C&W)	11/08/2015
01923 526	Vodafone Ltd (C&W)	20/06/2013
01923 527	FleXtel Limited	16/11/2005
01923 528	Localphone Limited	23/05/2007
01923 531	Barritec Limited	04/10/2012
01923 532	Barritel Limited	08/10/2008
01923 533	Solutios Limited	26/11/2008
01923 534	IPV6 Limited	13/02/2009
01923 535	Mars Communications Limited	03/02/2009
01923 536	Andrews & Arnold (Numbers) Ltd	14/04/2009
01923 537	Inet Telecoms Ltd (Voipfone)	17/11/2008
01923 538	Phone Co-Op Numbering Limited	23/12/2010
01923 539	Optify Mediaforce Limited	14/05/2009
01923 540	Telecoms World PLC	02/07/2009
01923 541	CFL Communications Ltd	20/07/2009
01923 542	Vectone Mobile Limited	01/07/2009
01923 544	Nexus Telecommunications Limited	07/10/2009
01923 545	BT	17/11/2014
01923 547	I-NET COMMUNICATIONS GROUP PLC	14/01/2010
01923 548	TeleWare Group PLC	26/01/2010
01923 549	Buzz Networks Limited	01/03/2010
01923 550	Atomstream Limited	13/04/2010
01923 551	Liquid 11 Limited	19/04/2010
01923 552	Suretec Systems Ltd	13/05/2010
01923 553	Numbergroup Utilities Ltd	02/11/2010
01923 554	TeleSurf Limited	30/06/2010
01923 555	Telappliant Ltd	28/06/2010
01923 556	Calltracks Limited	20/09/2013
01923 557	Core Telecom Limited	06/08/2010
01923 558	Media Telecom Ltd	05/08/2010
01923 559	Windsor Telecom Ltd	22/07/2010
01923 560	Sark Telecom B.V.	11/08/2010
01923 561	Plus Telecom Limited	24/09/2010
01923 562	Sky UK Limited	26/06/2013
01923 564	Vodafone Ltd (Energis)	08/12/2010
01923 565	Vodafone Ltd (Energis)	08/12/2010
01923 566	Daisy Communications Ltd	27/10/2010
01923 567	Vodafone Ltd (Energis)	08/12/2010
01923 568	Telephone Box Limited	10/12/2010
01923 569	Relax Telecom Limited	15/08/2014
01923 571	Invosys Limited	10/04/2012
01923 572	IP Wholesale Limited	01/06/2017
01923 573	Sky UK Limited	26/06/2013
01923 574	Firstsound Ltd	11/04/2011
01923 575	Minotaur Telecom Limited	01/02/2013
01923 577	Numbers Plus Ltd	28/07/2011
01923 578	Sky UK Limited	26/06/2013
01923 579	Media Hawk Ltd	26/09/2011
01923 580	24 SEVEN CLOUD COMMUNICATIONS LTD	30/09/2019
01923 581	Internexus Networks Limited	22/11/2011
01923 582	Nexbridge Communications Limited	09/01/2012
01923 583	Hello Telecom (UK) Limited	02/02/2012
01923 584	Bicom Systems EURL	01/03/2012
01923 585	Calltracks Limited	12/01/2017
01923 586	TalkTalk Communications Limited	24/11/2017
01923 587	Gamma Telecom Holdings Ltd	20/12/2016
01923 588	IOVOX Limited	31/01/2017
01923 589	Gamma Telecom Holdings Ltd	16/11/2017
01923 590	TalkTalk Communications Limited	14/09/2012
01923 591	Sky UK Limited	26/06/2013
01923 592	Sky UK Limited	26/06/2013
01923 593	Sky UK Limited	17/07/2013
01923 594	Colt Technology Services	05/03/2013
01923 595	Intrado Cloud Solutions Limited	15/01/2013
01923 597	Sky UK Limited	17/07/2013
01923 598	XoverX Ltd	26/04/2013
01923 599	Content Guru Limited	11/10/2012
01923 601	Gamma Telecom Holdings Ltd	31/01/2013
01923 602	Gamma Telecom Holdings Ltd	15/11/2012
01923 603	Gamma Telecom Holdings Ltd	15/11/2012
01923 604	Gamma Telecom Holdings Ltd	15/11/2012
01923 605	Gamma Telecom Holdings Ltd	15/11/2012
01923 606	Gamma Telecom Holdings Ltd	15/11/2012
01923 607	Gamma Telecom Holdings Ltd	15/11/2012
01923 608	Gamma Telecom Holdings Ltd	15/11/2012
01923 609	Gamma Telecom Holdings Ltd	15/11/2012
01923 61	BT	23/12/2004
01923 620	Lumen Technologies UK Limited	11/04/2006
01923 621	Commi Holdings Limited	21/11/2016
01923 622	Lumen Technologies UK Limited	11/04/2006
01923 623	Lumen Technologies UK Limited	11/04/2006
01923 624	Simwood eSMS Limited	19/07/2006
01923 625	(AQ) LIMITED	27/09/2012
01923 627	Spitfire Network Services Limited	27/06/2006
01923 628	Vonage Limited	21/01/2015
01923 629	Resilient PLC	05/01/2007
01923 63	BT	06/02/2003
01923 640	GCI Network Solutions Ltd	02/05/2017
01923 65	BT	22/10/1996
01923 66	BT	15/07/1994
01923 67	BT	15/07/1994
01923 68	BT	15/07/1994
01923 69	BT	04/03/1996
01923 70	Affiniti Integrated Solutions Limited	12/04/2000
01923 71	BT	15/07/1994
01923 72	BT	15/07/1994
01923 730	Inclarity Communications Limited	08/11/2012
01923 731	Inclarity Communications Limited	08/11/2012
01923 732	Inclarity Communications Limited	08/11/2012
01923 735	Inclarity Communications Limited	08/11/2012
01923 74	Verizon UK Limited	24/11/2004
01923 75	AQL Wholesale Ltd	01/11/2004
01923 76	Syntec Limited	16/11/2005
01923 77	BT	15/07/1994
01923 780	Vodafone Ltd (C&W)	05/09/2013
01923 781	Vodafone Ltd (C&W)	05/09/2013
01923 782	Vodafone Ltd (C&W)	05/09/2013
01923 783	Vodafone Ltd (C&W)	09/09/2013
01923 784	Vodafone Ltd (C&W)	09/09/2013
01923 785	Vodafone Ltd (C&W)	09/09/2013
01923 786	Vodafone Ltd (C&W)	09/09/2013
01923 787	Vodafone Ltd (C&W)	09/09/2013
01923 790	GTT-EMEA LTD	13/10/2021
01923 791	GTT-EMEA LTD	13/10/2021
01923 792	GTT-EMEA LTD	13/10/2021
01923 793	GTT-EMEA LTD	13/10/2021
01923 794	GTT-EMEA LTD	13/10/2021
01923 795	GTT-EMEA LTD	13/10/2021
01923 796	GTT-EMEA LTD	13/10/2021
01923 797	GTT-EMEA LTD	13/10/2021
01923 798	GTT-EMEA LTD	13/10/2021
01923 799	GTT-EMEA LTD	13/10/2021
01923 80	BT	15/07/1994
01923 81	BT	15/07/1994
01923 82	BT	15/07/1994
01923 83	BT	15/07/1994
01923 84	BT	15/07/1994
01923 85	BT	15/07/1994
01923 860	Linear Telecoms Limited	18/10/2010
01923 861	Sky UK Limited	26/06/2013
01923 862	ICC Networks Ltd	13/04/2012
01923 863	ICC Networks Ltd	18/04/2012
01923 864	API Telecom Limited	19/04/2012
01923 865	Ziron Limited	01/08/2012
01923 866	Invoco Ltd	22/05/2012
01923 867	Numbergroup Utilities Ltd	29/04/2019
01923 868	IOVOX Limited	04/07/2012
01923 869	Sky UK Limited	26/06/2013
01923 878	Connect Telecom UK Limited	19/07/2011
01923 879	Connect Telecom UK Limited	19/07/2011
01923 880	Magrathea Telecommunications Limited	17/11/2011
01923 881	Magrathea Telecommunications Limited	17/11/2011
01923 882	Magrathea Telecommunications Limited	17/11/2011
01923 883	Magrathea Telecommunications Limited	17/11/2011
01923 884	Magrathea Telecommunications Limited	17/11/2011
01923 886	Magrathea Telecommunications Limited	17/11/2011
01923 888	Magrathea Telecommunications Limited	17/11/2011
01923 889	Magrathea Telecommunications Limited	17/11/2011
01923 89	BT	15/07/1994
01923 900	Net-Work Internet Ltd	21/09/2007
01923 901	Voiceflex Limited	27/09/2007
01923 902	Nationwide Telephone Assistance Ltd	22/10/2007
01923 903	TalkTalk Communications Limited	02/05/2014
01923 904	Sky UK Limited	15/09/2014
01923 905	iHub 2 Limited	18/05/2016
01923 906	Redcentric Solutions Limited	05/06/2015
01923 908	IOVOX Limited	23/10/2014
01923 909	Redwood Technologies Ltd	15/11/2018
01923 910	Gamma Telecom Holdings Ltd	30/03/2015
01923 911	YayYay Limited	24/04/2015
01923 912	Affiniti Integrated Solutions Limited	18/02/2015
01923 913	Colt Technology Services	17/04/2015
01923 914	Sky UK Limited	19/05/2015
01923 915	Fido Telecom Limited	19/05/2015
01923 916	Colt Technology Services	05/12/2019
01923 917	Metronet (UK) Limited	21/05/2019
01923 918	BT	01/05/2020
01923 919	Gamma Telecom Holdings Ltd	05/05/2015
01923 920	Gamma Telecom Holdings Ltd	08/04/2016
01923 921	Belgacom International Carrier Services SA	20/06/2016
01923 923	NFON UK Ltd	29/04/2016
01923 924	Hyperoptic Ltd	31/08/2016
01923 925	Adepteo Limited	29/11/2016
01923 926	Adepteo Limited	29/11/2016
01923 927	Gamma Telecom Holdings Ltd	26/09/2016
01923 928	Fuse 2 Communications Ltd	03/07/2017
01923 929	SiPalto Ltd	26/06/2020
01923 930	Orbtalk Limited	01/12/2017
01923 931	Entanet International Ltd	12/12/2017
01923 932	Gamma Telecom Holdings Ltd	03/04/2018
01923 933	Zapappi Ltd	19/10/2017
01923 934	Sky UK Limited	03/07/2018
01923 935	Club Communications Ltd	13/08/2018
01923 936	Gamma Telecom Holdings Ltd	29/08/2018
01923 937	DIDWW Ireland Limited	15/10/2018
01923 938	Antheus Telecom Limited	06/02/2018
01923 939	IP Voice Networks Ltd	20/09/2017
01923 940	BT	04/07/2019
01923 941	TalkTalk Communications Limited	01/08/2019
01923 942	Dial 9 Communications Limited	18/10/2019
01923 943	Colt Technology Services	03/01/2019
01923 944	Gamma Telecom Holdings Ltd	04/01/2019
01923 945	ICUK Computing Services Limited	20/09/2019
01923 946	BT	12/04/2019
01923 947	Gamma Telecom Holdings Ltd	01/08/2019
01923 948	Gamma Telecom Holdings Ltd	03/05/2019
01923 950	Mi Telecom Limited	06/07/2020
01923 951	Hyperoptic Ltd	11/11/2019
01923 952	VOXYONDER NETWORK SERVICES UK LTD	28/08/2020
01923 953	Gamma Telecom Holdings Ltd	17/06/2020
01923 954	Gamma Telecom Holdings Ltd	04/11/2019
01923 955	BT	12/12/2007
01923 956	BT	12/12/2007
01923 957	BT	12/12/2007
01923 958	BT	12/12/2007
01923 959	TELNYX UK LIMITED	07/05/2020
01923 960	Sky UK Limited	08/09/2020
01923 961	Twilio Ireland Limited	13/10/2020
01923 962	BT	25/11/2020
01923 963	Colt Technology Services	30/11/2020
01923 964	Gamma Telecom Holdings Ltd	25/11/2020
01923 965	Colt Technology Services	21/07/2021
01923 966	Lanonyx Telecom Limited	10/08/2021
01923 969	Gamma Telecom Holdings Ltd	31/03/2021
01923 971	Sky UK Limited	19/10/2015
01923 972	Sky UK Limited	19/10/2015
01923 973	I.T Communications Limited	09/11/2015
01923 974	Mintaka Limited	12/05/2016
01923 975	Gamma Telecom Holdings Ltd	02/08/2017
01923 976	Number Services Ltd.	22/11/2018
01923 977	AQL Wholesale Ltd	01/06/2015
01923 979	Gamma Telecom Holdings Ltd	11/06/2015

Map of Watford

Other Area Codes in this County (Hertfordshire)

Code	City
01279	Bishops Stortford
01438	Stevenage
01442	Hemel Hempstead
01462	Hitchin
01707	Welwyn Garden City
01727	St Albans
01763	Royston
01920	Ware

All Area Codes About 01, 02 Numbers