- Prefix
01933 5- Area
- Wellingborough
- Number type
- Geographic landline (01/02)
- Format
01933 5XXXXX- From abroad
+44 1933 5XXXXX- Ofcom blocks in range
- 55
- Blocks in service
- 34
- Range holders
- 33
What are 01933 5XXXXX numbers?
Any UK number matching 01933 5XXXXX sits in the
01933 dialling code for Wellingborough.
Ofcom hands these numbers to communications providers in blocks; this range
contains 55 blocks, of which
34 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Wellingborough area — or
organisations elsewhere that keep a local 01933 presence using
VoIP.
Who holds 01933 5… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| TalkTalk Communications Limited | 2 | 01933 551XXX |
| AQL Wholesale Ltd | 1 | 01933 52XXXX |
| Andrews & Arnold (Numbers) Ltd | 1 | 01933 564XXX |
| Atomstream Limited | 1 | 01933 586XXX |
| Barritec Limited | 1 | 01933 553XXX |
| Barritel Limited | 1 | 01933 552XXX |
| Buzz Networks Limited | 1 | 01933 588XXX |
| CFL Communications Ltd | 1 | 01933 568XXX |
| Calltracks Limited | 1 | 01933 589XXX |
| Core Telecom Limited | 1 | 01933 592XXX |
| Digital Space Group Limited | 1 | 01933 577XXX |
| IPV6 Limited | 1 | 01933 561XXX |
…and 21 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 55 blocks Ofcom lists, 21 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 01933 5… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01933 caller IDs so their calls look like they come from Wellingborough (‘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 01933 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.
Run mobiles for a business? See our business mobile network comparison or get a quote.
More 01933 number ranges
Full 01933 Wellingborough area-code guide › · All UK area codes ›