- Prefix
01379 4- Area
- Diss
- Number type
- Geographic landline (01/02)
- Format
01379 4XXXXX- From abroad
+44 1379 4XXXXX- Ofcom blocks in range
- 100
- Blocks in service
- 61
- Range holders
- 56
What are 01379 4XXXXX numbers?
Any UK number matching 01379 4XXXXX sits in the
01379 dialling code for Diss.
Ofcom hands these numbers to communications providers in blocks; this range
contains 100 blocks, of which
61 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Diss area — or
organisations elsewhere that keep a local 01379 presence using
VoIP.
Who holds 01379 4… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Colt Technology Services | 2 | 01379 454XXX |
| Datazero Ltd | 2 | 01379 442XXX |
| Fuse 2 Communications Ltd | 2 | 01379 447XXX |
| Nuso Cloud UK Limited | 2 | 01379 426XXX |
| Sky UK Limited | 2 | 01379 423XXX |
| 24 Seven Cloud Communications Ltd | 1 | 01379 467XXX |
| API Telecom Limited | 1 | 01379 437XXX |
| Adepteo Limited | 1 | 01379 464XXX |
| Atomstream Limited | 1 | 01379 409XXX |
| Belgacom International Carrier Services SA | 1 | 01379 458XXX |
| Bicom Systems EURL | 1 | 01379 436XXX |
| CFL Communications Ltd | 1 | 01379 404XXX |
…and 44 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 100 blocks Ofcom lists, 39 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 01379 4… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01379 caller IDs so their calls look like they come from Diss (‘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 01379 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.
Run mobiles for a business? See our business mobile network comparison or get a quote.