- Prefix
01228 4- Area
- Carlisle
- Number type
- Geographic landline (01/02)
- Format
01228 4XXXXX- From abroad
+44 1228 4XXXXX- Ofcom blocks in range
- 73
- Blocks in service
- 17
- Range holders
- 13
What are 01228 4XXXXX numbers?
Any UK number matching 01228 4XXXXX sits in the
01228 dialling code for Carlisle.
Ofcom hands these numbers to communications providers in blocks; this range
contains 73 blocks, of which
17 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Carlisle area — or
organisations elsewhere that keep a local 01228 presence using
VoIP.
Who holds 01228 4… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| BT | 4 | 01228 40XXXX |
| Served Up Limited | 2 | 01228 444XXX |
| Bink Networks Ltd | 1 | 01228 476XXX |
| Colt Technology Services | 1 | 01228 474XXX |
| Digital Space Group Limited | 1 | 01228 453XXX |
| Gamma Telecom Holdings Limited | 1 | 01228 479XXX |
| KCOM Group Ltd | 1 | 01228 477XXX |
| Lanonyx Telecom Limited | 1 | 01228 478XXX |
| Six Degrees Technology Group Limited | 1 | 01228 484XXX |
| Sky UK Limited | 1 | 01228 49XXXX |
| TTNC Limited | 1 | 01228 42XXXX |
| Twilio Ireland Limited | 1 | 01228 473XXX |
…and 1 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, 56 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 01228 4… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01228 caller IDs so their calls look like they come from Carlisle (‘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 01228 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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