- Prefix
01553 3- Area
- Kings Lynn
- Number type
- Geographic landline (01/02)
- Format
01553 3XXXXX- From abroad
+44 1553 3XXXXX- Ofcom blocks in range
- 82
- Blocks in service
- 62
- Range holders
- 51
What are 01553 3XXXXX numbers?
Any UK number matching 01553 3XXXXX sits in the
01553 dialling code for Kings Lynn.
Ofcom hands these numbers to communications providers in blocks; this range
contains 82 blocks, of which
62 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Kings Lynn area — or
organisations elsewhere that keep a local 01553 presence using
VoIP.
Who holds 01553 3… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| GCI Network Solutions Limited | 10 | 01553 330XXX |
| Sky UK Limited | 3 | 01553 349XXX |
| (AQ) LIMITED | 1 | 01553 30XXXX |
| API Telecom Limited | 1 | 01553 384XXX |
| Andrews & Arnold (Numbers) Ltd | 1 | 01553 352XXX |
| Atomstream Limited | 1 | 01553 362XXX |
| Barritec Limited | 1 | 01553 376XXX |
| CFL Communications Ltd | 1 | 01553 358XXX |
| Content Guru Limited | 1 | 01553 393XXX |
| Convergence Group (wireless) Networks Limited | 1 | 01553 356XXX |
| Core Telecom Limited | 1 | 01553 367XXX |
| Datazero Ltd | 1 | 01553 353XXX |
…and 39 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 82 blocks Ofcom lists, 20 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 01553 3… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01553 caller IDs so their calls look like they come from Kings Lynn (‘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 01553 3XXXXX 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 01553 number ranges
Full 01553 Kings Lynn area-code guide › · All UK area codes ›