- Prefix
01332 4- Area
- Derby
- Number type
- Geographic landline (01/02)
- Format
01332 4XXXXX- From abroad
+44 1332 4XXXXX- Ofcom blocks in range
- 91
- Blocks in service
- 79
- Range holders
- 45
What are 01332 4XXXXX numbers?
Any UK number matching 01332 4XXXXX sits in the
01332 dialling code for Derby.
Ofcom hands these numbers to communications providers in blocks; this range
contains 91 blocks, of which
79 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Derby area — or
organisations elsewhere that keep a local 01332 presence using
VoIP.
Who holds 01332 4… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Vodafone Ltd (C&W) | 8 | 01332 421XXX |
| Sky UK Limited | 6 | 01332 441XXX |
| Colt Technology Services | 5 | 01332 401XXX |
| GCI Network Solutions Limited | 5 | 01332 425XXX |
| Lumen Technologies UK Limited | 5 | 01332 440XXX |
| Gamma Telecom Holdings Limited | 4 | 01332 41XXXX |
| Redcentric Solutions Limited | 3 | 01332 450XXX |
| TalkTalk Communications Limited | 3 | 01332 405XXX |
| BT | 2 | 01332 437XXX |
| Calltracks Limited | 2 | 01332 403XXX |
| Voiceflex Limited | 2 | 01332 404XXX |
| (AQ) LIMITED | 1 | 01332 402XXX |
…and 33 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 91 blocks Ofcom lists, 10 are protected (reserved by Ofcom and not in use) and 1 are free/unallocated. A call appearing to come from an unallocated block is a strong sign of a spoofed number.
Is a call from a 01332 4… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01332 caller IDs so their calls look like they come from Derby (‘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 01332 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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