01204 Bolton area code

01204 covers Bolton: 644,000 numbers allocated in 347 blocks to 118 listed holders (Ofcom, 14 Oct 2026).

Check a 01204 number privately

Number ranges registered under 01204

01204 number ranges, holders and allocation dates
Number range	Listed holder	Status	Allocation date
01204 200000 – 01204 200999	Localphone Limited	Allocated	2007-04-24
01204 201000 – 01204 201999	Voiceflex Limited	Allocated	2007-07-26
01204 202000 – 01204 202999	(AQ) LIMITED	Allocated	2012-09-10
01204 203000 – 01204 203999	Orange Business Holdings UK Limited	Allocated	2013-02-26
01204 204000 – 01204 204999	Net-Work Internet Ltd	Allocated	2007-09-21
01204 205000 – 01204 205999	Nationwide Telephone Assistance Ltd	Allocated	2007-10-01
01204 206000 – 01204 206999	VoIP-Un Limited	Allocated	2007-10-25
01204 207000 – 01204 207999	Digital Space Group Limited	Allocated	2007-11-29
01204 208000 – 01204 208999	Voxbone SA	Allocated	2007-11-23
01204 209000 – 01204 209999	Telecom2 Limited	Allocated	2009-09-01
01204 210000 – 01204 210999	Gamma Telecom Holdings Limited	Allocated	2026-06-26
01204 211000 – 01204 211999	TelXL Limited	Allocated	2008-02-12
01204 212000 – 01204 212999	Nodemax Limited	Allocated	2008-07-08
01204 213000 – 01204 213999	Gamma Telecom Holdings Limited	Allocated	2025-08-28
01204 214000 – 01204 214999	TalkTalk Communications Limited	Allocated	2013-02-12
01204 215000 – 01204 215999	Solutios Limited	Allocated	2008-08-19
01204 216000 – 01204 216999	Inet Telecoms Ltd (Voipfone)	Allocated	2008-09-18
01204 217000 – 01204 217999	Gamma Telecom Holdings Limited	Allocated	2026-03-13
01204 219000 – 01204 219999	Barritel Limited	Allocated	2008-10-08
01204 221000 – 01204 221999	Digital Space Group Limited	Allocated	2016-03-15
01204 222000 – 01204 222999	Barritel Limited	Allocated	2023-03-02
01204 224000 – 01204 224999	Telappliant Limited	Allocated	2009-02-03
01204 225000 – 01204 225999	Mars Communications Limited	Allocated	2009-02-03
01204 226000 – 01204 226999	Andrews & Arnold (Numbers) Ltd	Allocated	2009-02-24
01204 227000 – 01204 227999	TalkTalk Communications Limited	Allocated	2009-03-03
01204 228000 – 01204 228999	Telecoms World Limited	Allocated	2009-03-05
01204 229000 – 01204 229999	Nexus Telecommunications Limited	Allocated	2009-04-07
01204 230000 – 01204 230999	Digitech Solutions Global Limited	Allocated	2012-06-22
01204 231000 – 01204 231999	Sky UK Limited	Allocated	2013-06-20
01204 232000 – 01204 232999	VoiceHost Limited	Allocated	2010-06-22
01204 233000 – 01204 233999	GTT-EMEA LTD	Allocated	2021-10-13
01204 235000 – 01204 235999	TTNC Limited	Allocated	2013-11-15
01204 236000 – 01204 236999	Digital Space Group Limited	Allocated	2016-04-12
01204 237000 – 01204 237999	Vodafone Ltd (C&W)	Allocated	2013-06-18
01204 238000 – 01204 238999	AQL Wholesale Ltd	Allocated	2006-06-21
01204 239000 – 01204 239999	Flextel Limited	Allocated	2005-11-16
01204 240000 – 01204 240999	Sky UK Limited	Allocated	2013-06-20
01204 241000 – 01204 241999	TelNG Limited	Allocated	2007-02-26
01204 242000 – 01204 242999	Commi Holdings Limited	Allocated	2016-11-21
01204 243000 – 01204 243999	Sky UK Limited	Allocated	2013-06-20
01204 244000 – 01204 244999	Virgin Media Limited	Allocated	2006-08-30
01204 245000 – 01204 245999	Virgin Media Limited	Allocated	2006-08-30
01204 246000 – 01204 246999	Digital Mail Limited	Allocated	2007-02-02
01204 247000 – 01204 247999	Spitfire Network Services Limited	Allocated	2006-06-27
01204 249000 – 01204 249999	Resilient Limited	Allocated	2006-12-05
01204 250000 – 01204 250999	Dynamic Mobile Billing Limited	Allocated	2009-04-09
01204 251000 – 01204 251999	Invade International Ltd	Allocated	2016-01-12
01204 255000 – 01204 255999	TeleWare Group Limited	Allocated	2009-08-14
01204 257000 – 01204 257999	Vonage Business Limited	Allocated	2023-04-14
01204 258000 – 01204 258999	Swiftnet Limited	Allocated	2010-02-03
01204 259000 – 01204 259999	CFL Communications Ltd	Allocated	2009-07-07
01204 261000 – 01204 261999	WightFibre Limited	Allocated	2009-12-16
01204 262000 – 01204 262999	Nuso Cloud UK Limited	Allocated	2010-01-12
01204 263000 – 01204 263999	Buzz Networks Limited	Allocated	2010-02-24
01204 265000 – 01204 265999	Datazero Ltd	Allocated	2010-11-02
01204 266000 – 01204 266999	Atomstream Limited	Allocated	2010-02-25
01204 267000 – 01204 267999	Liquid 11 Limited	Allocated	2010-04-20
01204 268000 – 01204 268999	Digitech Solutions Global Limited	Allocated	2010-04-21
01204 269000 – 01204 269999	Suretec Systems Ltd	Allocated	2010-04-29
01204 270000 – 01204 270999	Sky UK Limited	Allocated	2013-06-20
01204 271000 – 01204 271999	Barritel Limited	Allocated	2022-11-17
01204 274000 – 01204 274999	Windsor Telecom Limited	Allocated	2010-07-19
01204 275000 – 01204 275999	Simwood eSMS Limited	Allocated	2010-07-20
01204 276000 – 01204 276999	Core Telecom Limited	Allocated	2010-08-06
01204 277000 – 01204 277999	Telephone Box Limited	Allocated	2010-11-09
01204 278000 – 01204 278999	Lumen Technologies UK Limited	Allocated	2010-09-16
01204 279000 – 01204 279999	Sky UK Limited	Allocated	2013-06-20
01204 280000 – 01204 280999	Phone Co-Op Numbering Limited	Allocated	2010-12-16
01204 282000 – 01204 282999	Invosys Limited	Allocated	2012-07-09
01204 283000 – 01204 283999	Sky UK Limited	Allocated	2013-06-20
01204 284000 – 01204 284999	INTELLIGENT EXCHANGES LIMITED	Allocated	2026-01-26
01204 285000 – 01204 285999	Hello Telecom (UK) Limited	Allocated	2011-02-15
01204 286000 – 01204 286999	24 Seven Cloud Communications Ltd	Allocated	2019-09-30
01204 287000 – 01204 287999	Minotaur Telecom Limited	Allocated	2013-01-31
01204 288000 – 01204 288999	Relax Telecom Limited	Allocated	2014-08-15
01204 290000 – 01204 290999	Fuse 2 Communications Ltd	Allocated	2024-01-22
01204 291000 – 01204 291999	TalkTalk Communications Limited	Allocated	2013-10-15
01204 292000 – 01204 292999	Kalnet4U Ltd	Allocated	2013-05-08
01204 293000 – 01204 293999	XoverX Ltd	Allocated	2013-05-01
01204 294000 – 01204 294999	Sky UK Limited	Allocated	2014-01-13
01204 295000 – 01204 295999	Sky UK Limited	Allocated	2014-01-13
01204 296000 – 01204 296999	Sky UK Limited	Allocated	2014-01-13
01204 298000 – 01204 298999	Sky UK Limited	Allocated	2013-06-20
01204 299000 – 01204 299999	Redwood Technologies Ltd	Allocated	2018-11-15
01204 300000 – 01204 309999	BT	Allocated	1994-07-15
01204 310000 – 01204 310999	Sky UK Limited	Allocated	2013-06-20
01204 311000 – 01204 311999	Nexbridge Communications Limited	Allocated	2012-01-09
01204 312000 – 01204 312999	8x8 Communications UK Limited	Allocated	2012-03-26
01204 313000 – 01204 313999	Tuxtel Ltd	Allocated	2011-12-21
01204 315000 – 01204 315999	Sky UK Limited	Allocated	2013-06-20
01204 316000 – 01204 316999	Bicom Systems EURL	Allocated	2012-03-02
01204 317000 – 01204 317999	IOVOX Limited	Allocated	2012-04-03
01204 318000 – 01204 318999	ICC Networks Ltd	Allocated	2012-07-16
01204 319000 – 01204 319999	Ziron Limited	Allocated	2012-07-27
01204 322000 – 01204 322999	Gamma Telecom Holdings Limited	Allocated	2012-11-15
01204 323000 – 01204 323999	Gamma Telecom Holdings Limited	Allocated	2012-11-15
01204 324000 – 01204 324999	Gamma Telecom Holdings Limited	Allocated	2012-11-15
01204 325000 – 01204 325999	Gamma Telecom Holdings Limited	Allocated	2012-11-15
01204 326000 – 01204 326999	Gamma Telecom Holdings Limited	Allocated	2012-11-15
01204 327000 – 01204 327999	Gamma Telecom Holdings Limited	Allocated	2012-11-15

396 more ranges — full list in CSV.

01204 allocation

Computed for 01204: 644,000 allocated numbers; ≈1.44× the 446,000 median (599 active codes). Register capacity: 964,000 numbers in 496 blocks.

Allocated: 644,000 numbers · 347 blocks
Protected: 312,000 numbers · 141 blocks
Free: 5,000 numbers · 5 blocks
Quarantined: 3,000 numbers · 3 blocks
Other (Reserved or Designated): 0 numbers · 0 blocks

118 listed holders for 01204

Ofcom-listed range allocation holders in the 14 Oct 2026 snapshot · alphabetical
Holder	Numbers	Blocks	Earliest allocation
(AQ) LIMITED	1,000	1	2012-09-10
24 Seven Cloud Communications Ltd	1,000	1	2019-09-30
8x8 Communications UK Limited	1,000	1	2012-03-26
Adepteo Limited	1,000	1	2017-01-16
Alnitak GmbH	1,000	1	2015-12-07
Andrews & Arnold (Numbers) Ltd	1,000	1	2009-02-24
AQL Wholesale Ltd	2,000	2	2006-06-21
Atomstream Limited	1,000	1	2010-02-25
Barritel Limited	5,000	5	2008-10-08
Belgacom International Carrier Services SA	1,000	1	2016-06-20
Bicom Systems EURL	1,000	1	2012-03-02
Bink Networks Ltd	1,000	1	2023-03-27
BT	269,000	89	1994-07-15
Buzz Networks Limited	1,000	1	2010-02-24
CFL Communications Ltd	1,000	1	2009-07-07
Colt Technology Services	6,000	6	2015-04-17
Commi Holdings Limited	1,000	1	2016-11-21
Content Guru Limited	1,000	1	2012-10-12
Core Telecom Limited	1,000	1	2010-08-06
Datazero Ltd	1,000	1	2010-11-02
Dial 9 Communications Limited	1,000	1	2019-12-09
DIDWW Ireland Limited	1,000	1	2017-10-19
Digital Mail Limited	1,000	1	2007-02-02
Digital Select Limited	1,000	1	2018-02-23
Digital Space Group Limited	3,000	3	2007-11-29
Digitech Solutions Global Limited	2,000	2	2010-04-21
DRD Communications Limited	2,000	2	2023-10-05
Dynamic Mobile Billing Limited	1,000	1	2009-04-09
Entanet International Ltd	1,000	1	2017-12-05
EVE CONNECT LTD	1,000	1	2022-05-25
Firstsound Ltd	1,000	1	2011-04-11
Flextel Limited	1,000	1	2005-11-16
Fuse 2 Communications Ltd	2,000	2	2017-07-03
Gamma Telecom Holdings Limited	29,000	29	2012-11-15
GCI Network Solutions Limited	8,000	8	2017-04-20
GTT-EMEA LTD	1,000	1	2021-10-13
HAVENSTOKE COMMUNICATIONS LTD	1,000	1	2026-03-17
Hello Telecom (UK) Limited	1,000	1	2011-02-15
Hyperoptic Ltd	1,000	1	2017-04-04
I.T Communications Limited	1,000	1	2015-11-20
ICC Networks Ltd	1,000	1	2012-07-16
ICUK Computing Services Limited	1,000	1	2019-08-12
Inet Telecoms Ltd (Voipfone)	1,000	1	2008-09-18
INTELLIGENT EXCHANGES LIMITED	2,000	2	2026-01-26
Internet of Things Limited	1,000	1	2018-08-13
Internexus Networks Limited	1,000	1	2011-11-18
Invade International Ltd	1,000	1	2016-01-12
Invoco Ltd	1,000	1	2011-09-21
Invosys Limited	1,000	1	2012-07-09
IOVOX Limited	3,000	3	2012-04-03

68 more holders — CSV.

Weekly changes for 01204

01204 weekly changes
From	To	Changed blocks
2026-08-19	2026-08-26	0
2026-08-26	2026-09-02	0
2026-09-02	2026-09-09	0
2026-09-09	2026-09-16	0
2026-09-16	2026-09-24	0
2026-09-24	2026-09-30	0
2026-09-30	2026-10-07	0
2026-10-07	2026-10-17	0

Latest 01204 allocations · 12 months

6 blocks · 6,000 numbers.

01204 latest dated allocations · year ending 14 Oct 2026 · first 8; all in CSV
Block	Allocation date	Holder
1204 21 0	2026-06-26	Gamma Telecom Holdings Limited
1204 90 6	2026-06-18	Colt Technology Services
1204 78 4	2026-03-17	HAVENSTOKE COMMUNICATIONS LTD
1204 21 7	2026-03-13	Gamma Telecom Holdings Limited
1204 28 4	2026-01-26	INTELLIGENT EXCHANGES LIMITED
1204 96 5	2026-01-26	INTELLIGENT EXCHANGES LIMITED

Called from 01204? Verify independently. Methodology.

01204 source: Ofcom s1.csv, published 14 Oct 2026. Download 01204 values (CSV). Contains Ofcom copyright material.

Source detail · 01204

01204 claim identifiers · release fc227d9e
Claim	Value	Identifier
answer	Bolton	`area:01204:answer:fc227d9e:v1`
check	Private browser lookup	`area:01204:check:fc227d9e:v1`
holders	118	`area:01204:holders:fc227d9e:v1`
status_mix	0.6680497925311203	`area:01204:status_mix:fc227d9e:v1`
history	0	`area:01204:history:fc227d9e:v1`
vintage	1994	`area:01204:vintage:fc227d9e:v1`
lengths	4	`area:01204:lengths:fc227d9e:v1`
nearby	01202, 01203, 01205, 01206	`area:01204:nearby:fc227d9e:v1`
what_to_do	/what-to-do-after-a-suspicious-call/	`area:01204:what_to_do:fc227d9e:v1`
cite	b541ed1fa93cb667e4b82b9ca1ef0e64fc28380207e87f679a2e81ea7f1560c0	`area:01204:cite:fc227d9e:v1`
allocated_numbers	644000	`area:01204:allocated_numbers:fc227d9e:v1`
listed_holders	118	`area:01204:listed_holders:fc227d9e:v1`
allocated_share	0.6680497925311203	`area:01204:allocated_share:fc227d9e:v1`
events_all	0	`area:01204:events_all:fc227d9e:v1`
records	496	`area:01204-bolton:records:fc227d9e:v1`
allocated_records	347	`area:01204-bolton:allocated_records:fc227d9e:v1`
listed_holders	118	`area:01204-bolton:listed_holders:fc227d9e:v1`
area_code	01204	`area:01204-bolton:area_code:fc227d9e:v1`
snapshot_date	14 Oct 2026	`area:01204-bolton:snapshot_date:fc227d9e:v1`
status_changes	0	`area:01204-bolton:status_changes:fc227d9e:v1`
holder_changes	0	`area:01204-bolton:holder_changes:fc227d9e:v1`
withdrawn_blocks	0	`area:01204-bolton:withdrawn_blocks:fc227d9e:v1`

Telephone area codes, retrieved 24 Sep 2026. Ofcom s1.csv; published 14 Oct 2026; fetched 2026-10-17 20:56 UTC; sha256 b541ed1fa93cb667e4b82b9ca1ef0e64fc28380207e87f679a2e81ea7f1560c0.