- Prefix
01737 4- Area
- Redhill
- Number type
- Geographic landline (01/02)
- Format
01737 4XXXXX- From abroad
+44 1737 4XXXXX- Ofcom blocks in range
- 73
- Blocks in service
- 56
- Range holders
- 53
What are 01737 4XXXXX numbers?
Any UK number matching 01737 4XXXXX sits in the
01737 dialling code for Redhill.
Ofcom hands these numbers to communications providers in blocks; this range
contains 73 blocks, of which
56 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Redhill area — or
organisations elsewhere that keep a local 01737 presence using
VoIP.
Who holds 01737 4… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Digital Space Group Limited | 2 | 01737 421XXX |
| Resilient Limited | 2 | 01737 490XXX |
| TalkTalk Communications Limited | 2 | 01737 423XXX |
| (AQ) LIMITED | 1 | 01737 444XXX |
| 24 Seven Cloud Communications Ltd | 1 | 01737 487XXX |
| 8x8 UK Limited | 1 | 01737 452XXX |
| API Telecom Limited | 1 | 01737 469XXX |
| Andrews & Arnold (Numbers) Ltd | 1 | 01737 450XXX |
| Atomstream Limited | 1 | 01737 453XXX |
| Bicom Systems EURL | 1 | 01737 467XXX |
| Buzz Networks Limited | 1 | 01737 448XXX |
| CFL Communications Ltd | 1 | 01737 477XXX |
…and 41 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 73 blocks Ofcom lists, 17 are protected (reserved by Ofcom and not in use). A call appearing to come from an unallocated block is a strong sign of a spoofed number.
Is a call from a 01737 4… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01737 caller IDs so their calls look like they come from Redhill (‘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 01737 4XXXXX 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.
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