- Prefix
01233 5- Area
- Ashford (Kent)
- Number type
- Geographic landline (01/02)
- Format
01233 5XXXXX- From abroad
+44 1233 5XXXXX- Ofcom blocks in range
- 91
- Blocks in service
- 53
- Range holders
- 35
What are 01233 5XXXXX numbers?
Any UK number matching 01233 5XXXXX sits in the
01233 dialling code for Ashford (Kent).
Ofcom hands these numbers to communications providers in blocks; this range
contains 91 blocks, of which
53 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Ashford (Kent) area — or
organisations elsewhere that keep a local 01233 presence using
VoIP.
Who holds 01233 5… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Gamma Telecom Holdings Limited | 7 | 01233 527XXX |
| BT | 5 | 01233 50XXXX |
| Sky UK Limited | 5 | 01233 513XXX |
| Colt Technology Services | 4 | 01233 515XXX |
| Twilio Ireland Limited | 2 | 01233 542XXX |
| 24 Seven Cloud Communications Ltd | 1 | 01233 537XXX |
| Adepteo Limited | 1 | 01233 524XXX |
| Belgacom International Carrier Services SA | 1 | 01233 558XXX |
| Bink Networks Ltd | 1 | 01233 549XXX |
| DIDWW Ireland Limited | 1 | 01233 541XXX |
| Dial 9 Communications Limited | 1 | 01233 540XXX |
| EVE CONNECT LTD | 1 | 01233 539XXX |
…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 91 blocks Ofcom lists, 30 are protected (reserved by Ofcom and not in use) and 8 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 01233 5… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01233 caller IDs so their calls look like they come from Ashford (Kent) (‘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 01233 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 01233 number ranges
Full 01233 Ashford (Kent) area-code guide › · All UK area codes ›