- Prefix
01733 9- Area
- Peterborough
- Number type
- Geographic landline (01/02)
- Format
01733 9XXXXX- From abroad
+44 1733 9XXXXX- Ofcom blocks in range
- 91
- Blocks in service
- 49
- Range holders
- 27
What are 01733 9XXXXX numbers?
Any UK number matching 01733 9XXXXX sits in the
01733 dialling code for Peterborough.
Ofcom hands these numbers to communications providers in blocks; this range
contains 91 blocks, of which
49 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Peterborough area — or
organisations elsewhere that keep a local 01733 presence using
VoIP.
Who holds 01733 9… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Gamma Telecom Holdings Limited | 14 | 01733 902XXX |
| BT | 4 | 01733 913XXX |
| Colt Technology Services | 4 | 01733 911XXX |
| Voxbone SA | 3 | 01733 910XXX |
| Twilio Ireland Limited | 2 | 01733 924XXX |
| Alnitak GmbH | 1 | 01733 901XXX |
| Belgacom International Carrier Services SA | 1 | 01733 904XXX |
| Bink Broadband Ltd | 1 | 01733 906XXX |
| Bink Networks Ltd | 1 | 01733 914XXX |
| Dial 9 Communications Limited | 1 | 01733 960XXX |
| Digital Mail Limited | 1 | 01733 900XXX |
| Entanet International Ltd | 1 | 01733 941XXX |
…and 15 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, 38 are protected (reserved by Ofcom and not in use) and 4 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 01733 9… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01733 caller IDs so their calls look like they come from Peterborough (‘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 01733 9XXXXX 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 01733 number ranges
Full 01733 Peterborough area-code guide › · All UK area codes ›