- Prefix
01790 5- Area
- Spilsby
- Number type
- Geographic landline (01/02)
- Format
01790 5XXXXX- From abroad
+44 1790 5XXXXX- Ofcom blocks in range
- 19
- Blocks in service
- 16
- Range holders
- 16
What are 01790 5XXXXX numbers?
Any UK number matching 01790 5XXXXX sits in the
01790 dialling code for Spilsby.
Ofcom hands these numbers to communications providers in blocks; this range
contains 19 blocks, of which
16 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Spilsby area — or
organisations elsewhere that keep a local 01790 presence using
VoIP.
Who holds 01790 5… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Andrews & Arnold (Numbers) Ltd | 1 | 01790 51XXXX |
| Atomstream Limited | 1 | 01790 598XXX |
| CFL Communications Ltd | 1 | 01790 58XXXX |
| Datazero Ltd | 1 | 01790 594XXX |
| GCI Network Solutions Limited | 1 | 01790 592XXX |
| IPV6 Limited | 1 | 01790 50XXXX |
| Invade International Ltd | 1 | 01790 55XXXX |
| Mars Communications Limited | 1 | 01790 52XXXX |
| Nexus Telecommunications Limited | 1 | 01790 53XXXX |
| Phone Co-Op Numbering Limited | 1 | 01790 597XXX |
| Red Matter Limited | 1 | 01790 590XXX |
| Suretec Systems Ltd | 1 | 01790 595XXX |
…and 4 more providers hold smaller allocations in this range.
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 19 blocks Ofcom lists, 3 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 01790 5… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01790 caller IDs so their calls look like they come from Spilsby (‘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 01790 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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