- Prefix
01707 4- Area
- Welwyn Garden
- Number type
- Geographic landline (01/02)
- Format
01707 4XXXXX- From abroad
+44 1707 4XXXXX- Ofcom blocks in range
- 64
- Blocks in service
- 33
- Range holders
- 27
What are 01707 4XXXXX numbers?
Any UK number matching 01707 4XXXXX sits in the
01707 dialling code for Welwyn Garden.
Ofcom hands these numbers to communications providers in blocks; this range
contains 64 blocks, of which
33 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Welwyn Garden area — or
organisations elsewhere that keep a local 01707 presence using
VoIP.
Who holds 01707 4… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| GTT-EMEA LTD | 5 | 01707 460XXX |
| DRD Communications Limited | 2 | 01707 470XXX |
| Six Degrees Technology Group Limited | 2 | 01707 430XXX |
| (AQ) LIMITED | 1 | 01707 445XXX |
| 24 Seven Cloud Communications Ltd | 1 | 01707 417XXX |
| API Telecom Limited | 1 | 01707 418XXX |
| Bicom Systems EURL | 1 | 01707 415XXX |
| C2C Limited | 1 | 01707 48XXXX |
| Citrus Telecommunications Ltd | 1 | 01707 40XXXX |
| Digital Mail Limited | 1 | 01707 444XXX |
| GCI Network Solutions Limited | 1 | 01707 45XXXX |
| HAVENSTOKE COMMUNICATIONS LTD | 1 | 01707 411XXX |
…and 15 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 64 blocks Ofcom lists, 31 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 01707 4… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01707 caller IDs so their calls look like they come from Welwyn Garden (‘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 01707 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.
Run mobiles for a business? See our business mobile network comparison or get a quote.
More 01707 number ranges
Full 01707 Welwyn Garden area-code guide › · All UK area codes ›