- Prefix
01433 4- Area
- Hathersage
- Number type
- Geographic landline (01/02)
- Format
01433 4XXXXX- From abroad
+44 1433 4XXXXX- Ofcom blocks in range
- 46
- Blocks in service
- 18
- Range holders
- 16
What are 01433 4XXXXX numbers?
Any UK number matching 01433 4XXXXX sits in the
01433 dialling code for Hathersage.
Ofcom hands these numbers to communications providers in blocks; this range
contains 46 blocks, of which
18 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Hathersage area — or
organisations elsewhere that keep a local 01433 presence using
VoIP.
Who holds 01433 4… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Six Degrees Technology Group Limited | 3 | 01433 470XXX |
| AQL Wholesale Ltd | 1 | 01433 42XXXX |
| Adepteo Limited | 1 | 01433 413XXX |
| Barritel Limited | 1 | 01433 48XXXX |
| Colt Technology Services | 1 | 01433 416XXX |
| Flextel Limited | 1 | 01433 49XXXX |
| GCI Network Solutions Limited | 1 | 01433 414XXX |
| Gamma Telecom Holdings Limited | 1 | 01433 44XXXX |
| I.T Communications Limited | 1 | 01433 415XXX |
| IP Voice Networks Ltd | 1 | 01433 418XXX |
| Linear Telecoms Limited | 1 | 01433 400XXX |
| Localphone Limited | 1 | 01433 46XXXX |
…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 46 blocks Ofcom lists, 28 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 01433 4… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01433 caller IDs so their calls look like they come from Hathersage (‘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 01433 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.
More 01433 number ranges
Full 01433 Hathersage area-code guide › · All UK area codes ›