rangecheck

01215 area code: Birmingham numbers starting 0121 5

01215 is not a separate area code. It is Birmingham (0121) followed by local numbers starting 5.

880,000 numbers are allocated in 88 blocks to 39 listed holders (Ofcom, 14 Oct 2026).

Check a 01215 number privately

Number ranges registered under 0121 5

0121 5 blocks: holder, status and allocation date
Number rangeListed holderStatusAllocation date
0121 5000000 – 0121 5009999 BT Allocated 1994-07-15
0121 5010000 – 0121 5019999 BT Allocated 1994-07-15
0121 5020000 – 0121 5029999 BT Allocated 1994-07-15
0121 5030000 – 0121 5039999 BT Allocated 1994-07-15
0121 5040000 – 0121 5049999 BT Allocated 1994-07-15
0121 5050000 – 0121 5059999 BT Allocated 1994-07-15
0121 5060000 – 0121 5069999 BT Allocated 1994-10-27
0121 5070000 – 0121 5079999 BT Allocated 1994-07-15
0121 5080000 – 0121 5089999 BT Allocated 1997-03-18
0121 5100000 – 0121 5109999 Commi Holdings Limited Allocated 2016-11-21
0121 5110000 – 0121 5119999 BT Allocated 1994-07-15
0121 5120000 – 0121 5129999 Belgacom International Carrier Services SA Allocated 2016-06-20
0121 5130000 – 0121 5139999 Hello Telecom (UK) Limited Allocated 2009-07-20
0121 5140000 – 0121 5149999 GCI Network Solutions Limited Allocated 2023-12-22
0121 5150000 – 0121 5159999 BT Allocated 1994-07-15
0121 5160000 – 0121 5169999 Gamma Telecom Holdings Limited Allocated 2016-07-04
0121 5170000 – 0121 5179999 Buzz Networks Limited Allocated 2010-02-24
0121 5190000 – 0121 5199999 Verizon UK Limited Allocated 2015-03-19
0121 5200000 – 0121 5209999 BT Allocated 1994-07-15
0121 5210000 – 0121 5219999 BT Allocated 1994-07-15
0121 5220000 – 0121 5229999 BT Allocated 1994-07-15
0121 5230000 – 0121 5239999 BT Allocated 1994-07-15
0121 5240000 – 0121 5249999 BT Allocated 1994-07-15
0121 5250000 – 0121 5259999 BT Allocated 1994-07-15
0121 5260000 – 0121 5269999 BT Allocated 1994-07-15
0121 5270000 – 0121 5279999 Digitech Solutions Global Limited Allocated 2010-03-17
0121 5280000 – 0121 5289999 Suretec Systems Ltd Allocated 2010-04-29
0121 5290000 – 0121 5299999 Core Telecom Limited Allocated 2010-08-06
0121 5300000 – 0121 5309999 Virgin Media Limited Allocated 2016-03-17
0121 5310000 – 0121 5319999 Virgin Media Limited Allocated 2016-03-17
0121 5320000 – 0121 5329999 Virgin Media Limited Allocated 2016-03-17
0121 5330000 – 0121 5339999 Virgin Media Limited Allocated 2016-03-17
0121 5350000 – 0121 5359999 Vodafone Ltd (C&W) Allocated 2021-11-17
0121 5360000 – 0121 5369999 Virgin Media Limited Allocated 2016-03-17
0121 5370000 – 0121 5379999 Sky UK Limited Allocated 2013-06-21
0121 5380000 – 0121 5389999 Barritec Limited Allocated 2012-10-22
0121 5400000 – 0121 5409999 Barritel Limited Allocated 2006-02-13
0121 5410000 – 0121 5419999 BT Allocated 1994-07-15
0121 5430000 – 0121 5439999 BT Allocated 1994-07-15
0121 5440000 – 0121 5449999 BT Allocated 1994-07-15
0121 5450000 – 0121 5459999 BT Allocated 1994-07-15
0121 5460000 – 0121 5469999 Invosys Limited Allocated 2012-05-17
0121 5470000 – 0121 5479999 Atomstream Limited Allocated 2010-04-23
0121 5480000 – 0121 5489999 Relax Telecom Limited Allocated 2014-08-15
0121 5490000 – 0121 5499999 Tismi BV Allocated 2011-01-26
0121 5500000 – 0121 5509999 BT Allocated 1994-07-15
0121 5510000 – 0121 5519999 BT Allocated 1994-07-15
0121 5520000 – 0121 5529999 BT Allocated 1994-07-15
0121 5530000 – 0121 5539999 BT Allocated 1994-07-15
0121 5540000 – 0121 5549999 BT Allocated 1994-07-15
0121 5550000 – 0121 5559999 BT Allocated 1994-07-15
0121 5560000 – 0121 5569999 BT Allocated 1994-07-15
0121 5570000 – 0121 5579999 BT Allocated 1994-07-15
0121 5580000 – 0121 5589999 BT Allocated 1994-07-15
0121 5590000 – 0121 5599999 BT Allocated 1994-07-15
0121 5610000 – 0121 5619999 BT Allocated 1994-07-15
0121 5620000 – 0121 5629999 IM Software Ltd Allocated 2012-03-20
0121 5630000 – 0121 5639999 Relax Telecom Limited Allocated 2010-09-28
0121 5640000 – 0121 5649999 GCI Network Solutions Limited Allocated 2017-04-20
0121 5650000 – 0121 5659999 BT Allocated 1994-07-15
0121 5660000 – 0121 5669999 Vodafone Ltd (C&W) Allocated 2019-04-01
0121 5670000 – 0121 5679999 BT Allocated 1994-07-15
0121 5680000 – 0121 5689999 BT Allocated 1994-07-15
0121 5690000 – 0121 5699999 BT Allocated 1994-07-15
0121 5700000 – 0121 5709999 Mintaka Limited Allocated 2011-02-11
0121 5720000 – 0121 5729999 TalkTalk Communications Limited Allocated 2011-03-22
0121 5730000 – 0121 5739999 Sipcentric Ltd Allocated 2014-06-30
0121 5740000 – 0121 5749999 Sky UK Limited Allocated 2013-06-21
0121 5760000 – 0121 5769999 Lumen Technologies UK Limited Allocated 2011-06-02
0121 5780000 – 0121 5789999 TGL Services (UK) Ltd Allocated 2015-02-02
0121 5790000 – 0121 5799999 HAVENSTOKE COMMUNICATIONS LTD Allocated 2026-03-17
0121 5800000 – 0121 5809999 BT Allocated 1994-07-15
0121 5810000 – 0121 5819999 Media Hawk Ltd Allocated 2011-09-26
0121 5820000 – 0121 5829999 Vonage Business Limited Allocated 2026-07-20
0121 5830000 – 0121 5839999 Promotions4All Ltd Allocated 2009-12-23
0121 5840000 – 0121 5849999 Internexus Networks Limited Allocated 2011-11-18
0121 5850000 – 0121 5859999 BT Allocated 1994-07-15
0121 5880000 – 0121 5889999 BT Allocated 1994-07-15
0121 5900000 – 0121 5909999 Cloudcall Limited Allocated 2015-11-20
0121 5910000 – 0121 5919999 Virgin Media Limited Allocated 2016-03-17
0121 5920000 – 0121 5929999 NFON UK Ltd Allocated 2016-04-29
0121 5930000 – 0121 5939999 Tango Networks UK Ltd Allocated 2016-04-29
0121 5940000 – 0121 5949999 AQL Wholesale Ltd Allocated 2016-09-29
0121 5950000 – 0121 5959999 Central Technology Limited Allocated 2015-10-29
0121 5960000 – 0121 5969999 Bink Broadband Ltd Allocated 2016-02-08
0121 5970000 – 0121 5979999 Adepteo Limited Allocated 2017-01-16
0121 5980000 – 0121 5989999 BT Allocated 1994-07-15
0121 5990000 – 0121 5999999 Fuse 2 Communications Ltd Allocated 2016-02-22
0121 5090000 – 0121 5099999 Not listed Protected Not recorded
0121 5180000 – 0121 5189999 Not listed Protected Not recorded
0121 5340000 – 0121 5349999 Not listed Protected Not recorded
0121 5390000 – 0121 5399999 Not listed Protected Not recorded
0121 5420000 – 0121 5429999 Not listed Protected Not recorded
0121 5600000 – 0121 5609999 Not listed Protected Not recorded
0121 5710000 – 0121 5719999 Not listed Protected Not recorded
0121 5750000 – 0121 5759999 Not listed Protected Not recorded
0121 5770000 – 0121 5779999 Not listed Protected Not recorded
0121 5860000 – 0121 5869999 Not listed Protected Not recorded
0121 5870000 – 0121 5879999 Not listed Protected Not recorded
0121 5890000 – 0121 5899999 Not listed Protected Not recorded

Download all 100 ranges (CSV).

01215 allocation

Blocks whose local number starts with 5 under Birmingham (0121): 880,000 allocated numbers in 88 blocks.

Allocated
880,000 numbers · 88 blocks
Protected
120,000 numbers · 12 blocks

Holders of 0121 5 numbers

BT holds 47.7% of the allocated numbers (410,000 numbers, 41 blocks).

Listed holders of 0121 5 by share of allocated numbers · 14 Oct 2026
HolderShareNumbersBlocksEarliest allocation
BT47.7%410,000411994-07-15
Virgin Media Limited6.8%60,00062016-03-17
GCI Network Solutions Limited2.3%20,00022017-04-20
Relax Telecom Limited2.3%20,00022010-09-28
Sky UK Limited2.3%20,00022013-06-21
Vodafone Ltd (C&W)2.3%20,00022019-04-01
AQL Wholesale Ltd1.1%10,00012016-09-29
Adepteo Limited1.1%10,00012017-01-16
Atomstream Limited1.1%10,00012010-04-23
Barritec Limited1.1%10,00012012-10-22
Barritel Limited1.1%10,00012006-02-13
Belgacom International Carrier Services SA1.1%10,00012016-06-20
Bink Broadband Ltd1.1%10,00012016-02-08
Buzz Networks Limited1.1%10,00012010-02-24
Central Technology Limited1.1%10,00012015-10-29
Cloudcall Limited1.1%10,00012015-11-20
Commi Holdings Limited1.1%10,00012016-11-21
Core Telecom Limited1.1%10,00012010-08-06
Digitech Solutions Global Limited1.1%10,00012010-03-17
Fuse 2 Communications Ltd1.1%10,00012016-02-22
Gamma Telecom Holdings Limited1.1%10,00012016-07-04
HAVENSTOKE COMMUNICATIONS LTD1.1%10,00012026-03-17
Hello Telecom (UK) Limited1.1%10,00012009-07-20
IM Software Ltd1.1%10,00012012-03-20
Internexus Networks Limited1.1%10,00012011-11-18
Invosys Limited1.1%10,00012012-05-17
Lumen Technologies UK Limited1.1%10,00012011-06-02
Media Hawk Ltd1.1%10,00012011-09-26
Mintaka Limited1.1%10,00012011-02-11
NFON UK Ltd1.1%10,00012016-04-29
Promotions4All Ltd1.1%10,00012009-12-23
Sipcentric Ltd1.1%10,00012014-06-30
Suretec Systems Ltd1.1%10,00012010-04-29
TGL Services (UK) Ltd1.1%10,00012015-02-02
TalkTalk Communications Limited1.1%10,00012011-03-22
Tango Networks UK Ltd1.1%10,00012016-04-29
Tismi BV1.1%10,00012011-01-26
Verizon UK Limited1.1%10,00012015-03-19
Vonage Business Limited1.1%10,00012026-07-20

Weekly changes for 01215

0 block changes from 19 Aug 2026 to 17 Oct 2026. Each week counts a block once.

01215 weekly changes since 19 Aug 2026
FromToChanged blocks
2026-08-192026-08-260
2026-08-262026-09-020
2026-09-022026-09-090
2026-09-092026-09-160
2026-09-162026-09-240
2026-09-242026-09-300
2026-09-302026-10-070
2026-10-072026-10-170

These numbers belong to 0121 Birmingham. Methodology.

01215 source: Ofcom s1.csv, published 14 Oct 2026. Download 0121 5 blocks (CSV). Contains Ofcom copyright material.

Source detail · 01215
01215 claim identifiers · release fc227d9e
ClaimValueIdentifier
allocated_numbers880000subcode:0121-5:allocated_numbers:fc227d9e:v1
allocated_records88subcode:0121-5:allocated_records:fc227d9e:v1
listed_holders39subcode:0121-5:listed_holders:fc227d9e:v1
area_code0121subcode:0121-5:area_code:fc227d9e:v1
first_digit5subcode:0121-5:first_digit:fc227d9e:v1
snapshot_date14 Oct 2026subcode:0121-5:snapshot_date:fc227d9e:v1