- Prefix
01633 9- Area
- Newport
- Number type
- Geographic landline (01/02)
- Format
01633 9XXXXX- From abroad
+44 1633 9XXXXX- Ofcom blocks in range
- 73
- Blocks in service
- 50
- Range holders
- 35
What are 01633 9XXXXX numbers?
Any UK number matching 01633 9XXXXX sits in the
01633 dialling code for Newport.
Ofcom hands these numbers to communications providers in blocks; this range
contains 73 blocks, of which
50 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Newport area — or
organisations elsewhere that keep a local 01633 presence using
VoIP.
Who holds 01633 9… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Sky UK Limited | 5 | 01633 967XXX |
| TalkTalk Communications Limited | 5 | 01633 904XXX |
| Colt Technology Services | 3 | 01633 953XXX |
| Gamma Telecom Holdings Limited | 3 | 01633 973XXX |
| Digital Space Group Limited | 2 | 01633 902XXX |
| Fuse 2 Communications Ltd | 2 | 01633 962XXX |
| Vodafone Ltd (C&W) | 2 | 01633 930XXX |
| (AQ) LIMITED | 1 | 01633 901XXX |
| Barritel Limited | 1 | 01633 922XXX |
| CFL Communications Ltd | 1 | 01633 950XXX |
| Convergence Group (wireless) Networks Limited | 1 | 01633 964XXX |
| DIDWW Ireland Limited | 1 | 01633 986XXX |
…and 23 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 73 blocks Ofcom lists, 17 are protected (reserved by Ofcom and not in use) and 6 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 01633 9… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01633 caller IDs so their calls look like they come from Newport (‘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 01633 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.
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