- Prefix
01777 7- Area
- Retford
- Number type
- Geographic landline (01/02)
- Format
01777 7XXXXX- From abroad
+44 1777 7XXXXX- Ofcom blocks in range
- 37
- Blocks in service
- 11
- Range holders
- 9
What are 01777 7XXXXX numbers?
Any UK number matching 01777 7XXXXX sits in the
01777 dialling code for Retford.
Ofcom hands these numbers to communications providers in blocks; this range
contains 37 blocks, of which
11 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Retford area — or
organisations elsewhere that keep a local 01777 presence using
VoIP.
Who holds 01777 7… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| BT | 2 | 01777 70XXXX |
| Six Degrees Technology Group Limited | 2 | 01777 790XXX |
| DRD Communications Limited | 1 | 01777 750XXX |
| Flextel Limited | 1 | 01777 72XXXX |
| GCI Network Solutions Limited | 1 | 01777 78XXXX |
| IV Response Limited | 1 | 01777 73XXXX |
| Invade International Ltd | 1 | 01777 74XXXX |
| Spitfire Network Services Limited | 1 | 01777 767XXX |
| Vodafone Ltd (C&W) | 1 | 01777 77XXXX |
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 37 blocks Ofcom lists, 26 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 01777 7… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01777 caller IDs so their calls look like they come from Retford (‘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 01777 7XXXXX 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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