- Prefix
01707 2- Area
- Welwyn Garden
- Number type
- Geographic landline (01/02)
- Format
01707 2XXXXX- From abroad
+44 1707 2XXXXX- Ofcom blocks in range
- 28
- Blocks in service
- 19
- Range holders
- 4
What are 01707 2XXXXX numbers?
Any UK number matching 01707 2XXXXX sits in the
01707 dialling code for Welwyn Garden.
Ofcom hands these numbers to communications providers in blocks; this range
contains 28 blocks, of which
19 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 2… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Gamma Telecom Holdings Limited | 9 | 01707 240XXX |
| BT | 5 | 01707 25XXXX |
| Lumen Technologies UK Limited | 3 | 01707 230XXX |
| Vodafone Ltd (C&W) | 2 | 01707 20XXXX |
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 28 blocks Ofcom lists, 9 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 2… 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 2XXXXX 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 ›