- Range holder
- Telecom 10 Ltd
- Ofcom blocks allocated
- 264
- Dialling codes covered
- 25
- Number types held
- 7
- Largest single area
- 0117 Bristol
- Data source
- Ofcom numbering data
Who is Telecom 10 Ltd?
Telecom 10 Ltd is the name Ofcom records as the range holder for 264 UK number blocks. Ofcom publishes which communications provider each block of the national numbering plan was allocated to; it does not publish what those numbers are used for or who uses them, so everything on this page is the footprint, not the customer list.
Their allocation is mostly non-geographic ranges — 03, 08 and 09 numbers that are not tied to any town or city.
Telecom 10 Ltd’s footprint by number type
| Number type | Allocated blocks |
|---|---|
| Geographic landlines (01/02) | 25 |
| Mobile (07) | 1 |
| Personal numbering (070) | 21 |
| UK-wide 03 numbers | 1 |
| 084 service numbers | 17 |
| 087 service numbers | 5 |
| Premium rate (09) | 194 |
Where Telecom 10 Ltd’s landline numbers are
Telecom 10 Ltd holds geographic (01/02) blocks in 25 dialling-code areas. These are the codes where they hold the most:
| Dialling code | Area | Allocated blocks |
|---|---|---|
0117 | Bristol | 1 |
0118 | Reading | 1 |
0121 | Birmingham | 1 |
01235 | Abingdon | 1 |
01242 | Cheltenham | 1 |
01245 | Chelmsford | 1 |
01252 | Aldershot | 1 |
01256 | Basingstoke | 1 |
01270 | Crewe | 1 |
0131 | Edinburgh | 1 |
01322 | Dartford | 1 |
01344 | Bracknell | 1 |
…plus smaller allocations in 13 more dialling codes.
Number ranges Telecom 10 Ltd holds
The ranges where Telecom 10 Ltd holds the largest allocations. Each one links to a full guide showing every provider in that range:
…and 25 more ranges across the numbering plan.
What a call from a Telecom 10 Ltd range means
If our phone number checker shows Telecom 10 Ltd for a number, it means Ofcom allocated the block that number sits in to Telecom 10 Ltd. That is genuinely useful — it tells you the number is a real, allocated UK number of a known type — but three caveats matter:
- It is not the caller. The person or business on the other end is a customer of Telecom 10 Ltd, or of a reseller buying numbers wholesale from them.
- It may not even be their network any more. Numbers are ported between providers all the time, and Ofcom’s data keeps showing the original allocation.
- Caller ID can be faked. Spoofing lets a fraudster display any number, including one from a Telecom 10 Ltd range they have nothing to do with.
Ofcom’s data shows the provider each number range was originally allocated to — not who holds an individual number today. Numbers are frequently moved (ported) between providers, and no public database reveals the person or business behind a specific number, so treat any service that claims to with suspicion.
Had an unexpected call from one of these numbers?
Check the number itself rather than the provider name. Our guide to the UK number ranges scammers use covers the patterns worth knowing, and who called me? walks through identifying a caller honestly. Forward scam texts free to 7726, and report scam calls to Action Fraud.
Other UK range holders
Operators with a similar-sized share of the numbering plan:
All UK range holders › · All UK number ranges › · All UK area codes ›