- Prefix
01437 6- Area
- Clynderwen
- Number type
- Geographic landline (01/02)
- Format
01437 6XXXXX- From abroad
+44 1437 6XXXXX- Ofcom blocks in range
- 100
- Blocks in service
- 43
- Range holders
- 42
What are 01437 6XXXXX numbers?
Any UK number matching 01437 6XXXXX sits in the
01437 dialling code for Clynderwen.
Ofcom hands these numbers to communications providers in blocks; this range
contains 100 blocks, of which
43 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Clynderwen area — or
organisations elsewhere that keep a local 01437 presence using
VoIP.
Who holds 01437 6… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Sky UK Limited | 2 | 01437 621XXX |
| 24 Seven Cloud Communications Ltd | 1 | 01437 639XXX |
| Adepteo Limited | 1 | 01437 636XXX |
| Atomstream Limited | 1 | 01437 602XXX |
| BT | 1 | 01437 647XXX |
| Bicom Systems EURL | 1 | 01437 617XXX |
| Bink Networks Ltd | 1 | 01437 653XXX |
| Colt Technology Services | 1 | 01437 633XXX |
| Dial 9 Communications Limited | 1 | 01437 638XXX |
| Fuse 2 Communications Ltd | 1 | 01437 642XXX |
| Gamma Telecom Holdings Limited | 1 | 01437 644XXX |
| Hello Telecom (UK) Limited | 1 | 01437 613XXX |
…and 30 more providers hold smaller allocations in this range.
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.
Not every block in this range is in service: of the 100 blocks Ofcom lists, 52 are protected (reserved by Ofcom and not in use) and 5 are free/unallocated. A call appearing to come from an unallocated block is a strong sign of a spoofed number.
Is a call from a 01437 6… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01437 caller IDs so their calls look like they come from Clynderwen (‘neighbour spoofing’). If an unexpected caller asks for personal, banking or one-time-code details, hang up and ring the organisation back on a number you find independently. To put a name to a caller, see who called me?; to report one, see how to report a scam number.
Check a specific 01437 6XXXXX number
Paste any full number into the checker above (or on the main phone number checker) to see its exact range holder and allocation status from this week’s Ofcom data.
Run mobiles for a business? See our business mobile network comparison or get a quote.
More 01437 number ranges
Full 01437 Clynderwen area-code guide › · All UK area codes ›