01156 area code: Nottingham numbers starting 0115 6
01156 is not a separate area code. It is Nottingham (0115) followed by local numbers starting 6.
450,000 numbers are allocated in 45 blocks to 38 listed holders (Ofcom, 14 Oct 2026).
Check a 01156 number privately
Number ranges registered under 0115 6
| Number range | Listed holder | Status | Allocation date |
|---|---|---|---|
| 0115 6450000 – 0115 6459999 | Sky UK Limited | Allocated | 2019-11-04 |
| 0115 6460000 – 0115 6469999 | BT | Allocated | 2022-02-10 |
| 0115 6470000 – 0115 6479999 | Twilio Ireland Limited | Allocated | 2020-09-29 |
| 0115 6480000 – 0115 6489999 | BT | Allocated | 2019-06-06 |
| 0115 6490000 – 0115 6499999 | Onvoy Communications Ltd. | Allocated | 2022-04-08 |
| 0115 6500000 – 0115 6509999 | ICUK Computing Services Limited | Allocated | 2019-08-12 |
| 0115 6510000 – 0115 6519999 | Colt Technology Services | Allocated | 2026-10-06 |
| 0115 6540000 – 0115 6549999 | Colt Technology Services | Allocated | 2021-04-27 |
| 0115 6560000 – 0115 6569999 | VOXYONDER NETWORK SERVICES UK LTD | Allocated | 2020-08-28 |
| 0115 6570000 – 0115 6579999 | WELLTEL (UK) LIMITED | Allocated | 2025-09-15 |
| 0115 6600000 – 0115 6609999 | SiPalto Ltd | Allocated | 2019-11-05 |
| 0115 6610000 – 0115 6619999 | TELNYX UK LIMITED | Allocated | 2020-05-07 |
| 0115 6630000 – 0115 6639999 | USIC INTERNET SERVICES LIMITED | Allocated | 2023-10-23 |
| 0115 6640000 – 0115 6649999 | INFERNO COMMUNICATIONS LTD | Allocated | 2023-08-25 |
| 0115 6650000 – 0115 6659999 | Mi Telecom Limited | Allocated | 2020-07-03 |
| 0115 6660000 – 0115 6669999 | Gamma Telecom Holdings Limited | Allocated | 2020-08-19 |
| 0115 6670000 – 0115 6679999 | Gamma Telecom Holdings Limited | Allocated | 2021-09-22 |
| 0115 6680000 – 0115 6689999 | KCOM Group Ltd | Allocated | 2022-09-08 |
| 0115 6690000 – 0115 6699999 | Bink Networks Ltd | Allocated | 2023-04-11 |
| 0115 6700000 – 0115 6709999 | TalkTalk Communications Limited | Allocated | 2017-11-24 |
| 0115 6710000 – 0115 6719999 | Gamma Telecom Holdings Limited | Allocated | 2018-08-29 |
| 0115 6720000 – 0115 6729999 | Infinity Tracking Ltd | Allocated | 2018-11-20 |
| 0115 6750000 – 0115 6759999 | Antheus Telecom Limited | Allocated | 2018-02-06 |
| 0115 6760000 – 0115 6769999 | GCI Network Solutions Limited | Allocated | 2023-12-22 |
| 0115 6770000 – 0115 6779999 | IP Voice Networks Ltd | Allocated | 2017-09-28 |
| 0115 6780000 – 0115 6789999 | Colt Technology Services | Allocated | 2019-03-27 |
| 0115 6790000 – 0115 6799999 | Odigo | Allocated | 2020-03-16 |
| 0115 6810000 – 0115 6819999 | EVE CONNECT LTD | Allocated | 2022-05-25 |
| 0115 6820000 – 0115 6829999 | Tango Networks UK Ltd | Allocated | 2016-04-29 |
| 0115 6830000 – 0115 6839999 | Belgacom International Carrier Services SA | Allocated | 2016-06-20 |
| 0115 6840000 – 0115 6849999 | Gamma Telecom Holdings Limited | Allocated | 2016-06-29 |
| 0115 6850000 – 0115 6859999 | Bink Broadband Ltd | Allocated | 2016-07-19 |
| 0115 6860000 – 0115 6869999 | Dial 9 Communications Limited | Allocated | 2016-05-12 |
| 0115 6870000 – 0115 6879999 | Entanet International Ltd | Allocated | 2016-08-18 |
| 0115 6890000 – 0115 6899999 | Adepteo Limited | Allocated | 2017-01-16 |
| 0115 6900000 – 0115 6909999 | I.T Communications Limited | Allocated | 2016-03-15 |
| 0115 6910000 – 0115 6919999 | IOVOX Limited | Allocated | 2016-12-12 |
| 0115 6920000 – 0115 6929999 | Microtalk Europe Limited | Allocated | 2017-05-11 |
| 0115 6930000 – 0115 6939999 | Zapappi Ltd | Allocated | 2017-08-25 |
| 0115 6940000 – 0115 6949999 | Fuse 2 Communications Ltd | Allocated | 2017-07-03 |
| 0115 6950000 – 0115 6959999 | NFON UK Ltd | Allocated | 2016-04-29 |
| 0115 6960000 – 0115 6969999 | Number Services Ltd. | Allocated | 2018-11-22 |
| 0115 6970000 – 0115 6979999 | Gamma Telecom Holdings Limited | Allocated | 2017-01-23 |
| 0115 6980000 – 0115 6989999 | Mission Labs Limited | Allocated | 2017-08-29 |
| 0115 6990000 – 0115 6999999 | Alnitak GmbH | Allocated | 2015-12-07 |
| 0115 6000000 – 0115 6009999 | Not listed | Protected | Not recorded |
| 0115 6010000 – 0115 6019999 | Not listed | Protected | Not recorded |
| 0115 6020000 – 0115 6029999 | Not listed | Protected | Not recorded |
| 0115 6030000 – 0115 6039999 | Not listed | Protected | Not recorded |
| 0115 6040000 – 0115 6049999 | Not listed | Protected | Not recorded |
| 0115 6050000 – 0115 6059999 | Not listed | Protected | Not recorded |
| 0115 6060000 – 0115 6069999 | Not listed | Protected | Not recorded |
| 0115 6070000 – 0115 6079999 | Not listed | Protected | Not recorded |
| 0115 6080000 – 0115 6089999 | Not listed | Protected | Not recorded |
| 0115 6090000 – 0115 6099999 | Not listed | Protected | Not recorded |
| 0115 6100000 – 0115 6109999 | Not listed | Protected | Not recorded |
| 0115 6110000 – 0115 6119999 | Not listed | Protected | Not recorded |
| 0115 6120000 – 0115 6129999 | Not listed | Protected | Not recorded |
| 0115 6130000 – 0115 6139999 | Not listed | Protected | Not recorded |
| 0115 6140000 – 0115 6149999 | Not listed | Protected | Not recorded |
| 0115 6150000 – 0115 6159999 | Not listed | Protected | Not recorded |
| 0115 6160000 – 0115 6169999 | Not listed | Protected | Not recorded |
| 0115 6170000 – 0115 6179999 | Not listed | Protected | Not recorded |
| 0115 6180000 – 0115 6189999 | Not listed | Protected | Not recorded |
| 0115 6190000 – 0115 6199999 | Not listed | Protected | Not recorded |
| 0115 6200000 – 0115 6209999 | Not listed | Protected | Not recorded |
| 0115 6210000 – 0115 6219999 | Not listed | Protected | Not recorded |
| 0115 6220000 – 0115 6229999 | Not listed | Protected | Not recorded |
| 0115 6230000 – 0115 6239999 | Not listed | Protected | Not recorded |
| 0115 6240000 – 0115 6249999 | Not listed | Protected | Not recorded |
| 0115 6250000 – 0115 6259999 | Not listed | Protected | Not recorded |
| 0115 6260000 – 0115 6269999 | Not listed | Protected | Not recorded |
| 0115 6270000 – 0115 6279999 | Not listed | Protected | Not recorded |
| 0115 6280000 – 0115 6289999 | Not listed | Protected | Not recorded |
| 0115 6290000 – 0115 6299999 | Not listed | Protected | Not recorded |
| 0115 6300000 – 0115 6309999 | Not listed | Protected | Not recorded |
| 0115 6310000 – 0115 6319999 | Not listed | Protected | Not recorded |
| 0115 6320000 – 0115 6329999 | Not listed | Protected | Not recorded |
| 0115 6330000 – 0115 6339999 | Not listed | Protected | Not recorded |
| 0115 6340000 – 0115 6349999 | Not listed | Protected | Not recorded |
| 0115 6350000 – 0115 6359999 | Not listed | Protected | Not recorded |
| 0115 6360000 – 0115 6369999 | Not listed | Protected | Not recorded |
| 0115 6370000 – 0115 6379999 | Not listed | Protected | Not recorded |
| 0115 6380000 – 0115 6389999 | Not listed | Protected | Not recorded |
| 0115 6390000 – 0115 6399999 | Not listed | Protected | Not recorded |
| 0115 6400000 – 0115 6409999 | Not listed | Protected | Not recorded |
| 0115 6410000 – 0115 6419999 | Not listed | Protected | Not recorded |
| 0115 6420000 – 0115 6429999 | Not listed | Protected | Not recorded |
| 0115 6430000 – 0115 6439999 | Not listed | Protected | Not recorded |
| 0115 6440000 – 0115 6449999 | Not listed | Protected | Not recorded |
| 0115 6520000 – 0115 6529999 | Not listed | Free | Not recorded |
| 0115 6530000 – 0115 6539999 | Not listed | Free | Not recorded |
| 0115 6550000 – 0115 6559999 | Not listed | Protected | Not recorded |
| 0115 6580000 – 0115 6589999 | Not listed | Free | Not recorded |
| 0115 6590000 – 0115 6599999 | Not listed | Free | Not recorded |
| 0115 6620000 – 0115 6629999 | Not listed | Protected | Not recorded |
| 0115 6730000 – 0115 6739999 | Not listed | Protected | Not recorded |
| 0115 6740000 – 0115 6749999 | Not listed | Protected | Not recorded |
| 0115 6800000 – 0115 6809999 | Not listed | Protected | Not recorded |
| 0115 6880000 – 0115 6889999 | Not listed | Protected | Not recorded |
01156 allocation
Blocks whose local number starts with 6 under Nottingham (0115): 450,000 allocated numbers in 45 blocks.
- Protected
- 510,000 numbers · 51 blocks
- Allocated
- 450,000 numbers · 45 blocks
- Free
- 40,000 numbers · 4 blocks
Holders of 0115 6 numbers
Gamma Telecom Holdings Limited holds 11.9% of the allocated numbers (50,000 numbers, 5 blocks).
| Holder | Share | Numbers | Blocks | Earliest allocation |
|---|---|---|---|---|
| Gamma Telecom Holdings Limited | 11.9% | 50,000 | 5 | 2016-06-29 |
| Colt Technology Services | 6.7% | 30,000 | 3 | 2019-03-27 |
| BT | 4.4% | 20,000 | 2 | 2019-06-06 |
| Adepteo Limited | 2.2% | 10,000 | 1 | 2017-01-16 |
| Alnitak GmbH | 2.2% | 10,000 | 1 | 2015-12-07 |
| Antheus Telecom Limited | 2.2% | 10,000 | 1 | 2018-02-06 |
| Belgacom International Carrier Services SA | 2.2% | 10,000 | 1 | 2016-06-20 |
| Bink Broadband Ltd | 2.2% | 10,000 | 1 | 2016-07-19 |
| Bink Networks Ltd | 2.2% | 10,000 | 1 | 2023-04-11 |
| Dial 9 Communications Limited | 2.2% | 10,000 | 1 | 2016-05-12 |
| EVE CONNECT LTD | 2.2% | 10,000 | 1 | 2022-05-25 |
| Entanet International Ltd | 2.2% | 10,000 | 1 | 2016-08-18 |
| Fuse 2 Communications Ltd | 2.2% | 10,000 | 1 | 2017-07-03 |
| GCI Network Solutions Limited | 2.2% | 10,000 | 1 | 2023-12-22 |
| I.T Communications Limited | 2.2% | 10,000 | 1 | 2016-03-15 |
| ICUK Computing Services Limited | 2.2% | 10,000 | 1 | 2019-08-12 |
| INFERNO COMMUNICATIONS LTD | 2.2% | 10,000 | 1 | 2023-08-25 |
| IOVOX Limited | 2.2% | 10,000 | 1 | 2016-12-12 |
| IP Voice Networks Ltd | 2.2% | 10,000 | 1 | 2017-09-28 |
| Infinity Tracking Ltd | 2.2% | 10,000 | 1 | 2018-11-20 |
| KCOM Group Ltd | 2.2% | 10,000 | 1 | 2022-09-08 |
| Mi Telecom Limited | 2.2% | 10,000 | 1 | 2020-07-03 |
| Microtalk Europe Limited | 2.2% | 10,000 | 1 | 2017-05-11 |
| Mission Labs Limited | 2.2% | 10,000 | 1 | 2017-08-29 |
| NFON UK Ltd | 2.2% | 10,000 | 1 | 2016-04-29 |
| Number Services Ltd. | 2.2% | 10,000 | 1 | 2018-11-22 |
| Odigo | 2.2% | 10,000 | 1 | 2020-03-16 |
| Onvoy Communications Ltd. | 2.2% | 10,000 | 1 | 2022-04-08 |
| SiPalto Ltd | 2.2% | 10,000 | 1 | 2019-11-05 |
| Sky UK Limited | 2.2% | 10,000 | 1 | 2019-11-04 |
| TELNYX UK LIMITED | 2.2% | 10,000 | 1 | 2020-05-07 |
| TalkTalk Communications Limited | 2.2% | 10,000 | 1 | 2017-11-24 |
| Tango Networks UK Ltd | 2.2% | 10,000 | 1 | 2016-04-29 |
| Twilio Ireland Limited | 2.2% | 10,000 | 1 | 2020-09-29 |
| USIC INTERNET SERVICES LIMITED | 2.2% | 10,000 | 1 | 2023-10-23 |
| VOXYONDER NETWORK SERVICES UK LTD | 2.2% | 10,000 | 1 | 2020-08-28 |
| WELLTEL (UK) LIMITED | 2.2% | 10,000 | 1 | 2025-09-15 |
| Zapappi Ltd | 2.2% | 10,000 | 1 | 2017-08-25 |
Weekly changes for 01156
1 block changes from 19 Aug 2026 to 17 Oct 2026. Each week counts a block once.
| 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 | 1 |
These numbers belong to 0115 Nottingham. Methodology.
01156 source: Ofcom s1.csv, published 14 Oct 2026. Download 0115 6 blocks (CSV). Contains Ofcom copyright material.
Source detail · 01156
| Claim | Value | Identifier |
|---|---|---|
| allocated_numbers | 450000 | subcode:0115-6:allocated_numbers:fc227d9e:v1 |
| allocated_records | 45 | subcode:0115-6:allocated_records:fc227d9e:v1 |
| listed_holders | 38 | subcode:0115-6:listed_holders:fc227d9e:v1 |
| area_code | 0115 | subcode:0115-6:area_code:fc227d9e:v1 |
| first_digit | 6 | subcode:0115-6:first_digit:fc227d9e:v1 |
| snapshot_date | 14 Oct 2026 | subcode:0115-6:snapshot_date:fc227d9e:v1 |