- Prefix
01780 5- Area
- Stamford
- Number type
- Geographic landline (01/02)
- Format
01780 5XXXXX- From abroad
+44 1780 5XXXXX- Ofcom blocks in range
- 46
- Blocks in service
- 9
- Range holders
- 8
What are 01780 5XXXXX numbers?
Any UK number matching 01780 5XXXXX sits in the
01780 dialling code for Stamford.
Ofcom hands these numbers to communications providers in blocks; this range
contains 46 blocks, of which
9 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Stamford area — or
organisations elsewhere that keep a local 01780 presence using
VoIP.
Who holds 01780 5… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Served Up Limited | 2 | 01780 552XXX |
| Andrews & Arnold (Numbers) Ltd | 1 | 01780 585XXX |
| IPV6 Limited | 1 | 01780 57XXXX |
| Mars Communications Limited | 1 | 01780 56XXXX |
| Sky UK Limited | 1 | 01780 59XXXX |
| Solutios Limited | 1 | 01780 54XXXX |
| TalkTalk Communications Limited | 1 | 01780 508XXX |
| Voxbone SA | 1 | 01780 510XXX |
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 46 blocks Ofcom lists, 37 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 01780 5… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01780 caller IDs so their calls look like they come from Stamford (‘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 01780 5XXXXX 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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