- Prefix
01857 4- Area
- Sanday
- Number type
- Geographic landline (01/02)
- Format
01857 4XXXXX- From abroad
+44 1857 4XXXXX- Ofcom blocks in range
- 28
- Blocks in service
- 8
- Range holders
- 7
What are 01857 4XXXXX numbers?
Any UK number matching 01857 4XXXXX sits in the
01857 dialling code for Sanday.
Ofcom hands these numbers to communications providers in blocks; this range
contains 28 blocks, of which
8 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Sanday area — or
organisations elsewhere that keep a local 01857 presence using
VoIP.
Who holds 01857 4… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Digital Space Group Limited | 2 | 01857 417XXX |
| Net-Work Internet Ltd | 1 | 01857 40XXXX |
| Nodemax Limited | 1 | 01857 45XXXX |
| Redcentric Solutions Limited | 1 | 01857 42XXXX |
| Served Up Limited | 1 | 01857 48XXXX |
| Telecom2 Limited | 1 | 01857 43XXXX |
| Voxbone SA | 1 | 01857 460XXX |
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, 20 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 01857 4… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01857 caller IDs so their calls look like they come from Sanday (‘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 01857 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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