- Prefix
01777 4- Area
- Retford
- Number type
- Geographic landline (01/02)
- Format
01777 4XXXXX- From abroad
+44 1777 4XXXXX- Ofcom blocks in range
- 28
- Blocks in service
- 7
- Range holders
- 7
What are 01777 4XXXXX numbers?
Any UK number matching 01777 4XXXXX sits in the
01777 dialling code for Retford.
Ofcom hands these numbers to communications providers in blocks; this range
contains 28 blocks, of which
7 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 4… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| IPV6 Limited | 1 | 01777 48XXXX |
| Mars Communications Limited | 1 | 01777 46XXXX |
| Served Up Limited | 1 | 01777 44XXXX |
| Sky UK Limited | 1 | 01777 47XXXX |
| Solutios Limited | 1 | 01777 45XXXX |
| Telecoms World Limited | 1 | 01777 49XXXX |
| Voxbone SA | 1 | 01777 410XXX |
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, 21 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 4… 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 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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