- Prefix
01728 5- Area
- Saxmundham
- Number type
- Geographic landline (01/02)
- Format
01728 5XXXXX- From abroad
+44 1728 5XXXXX- Ofcom blocks in range
- 64
- Blocks in service
- 48
- Range holders
- 45
What are 01728 5XXXXX numbers?
Any UK number matching 01728 5XXXXX sits in the
01728 dialling code for Saxmundham.
Ofcom hands these numbers to communications providers in blocks; this range
contains 64 blocks, of which
48 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Saxmundham area — or
organisations elsewhere that keep a local 01728 presence using
VoIP.
Who holds 01728 5… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Colt Technology Services | 2 | 01728 585XXX |
| Fuse 2 Communications Ltd | 2 | 01728 587XXX |
| Sky UK Limited | 2 | 01728 561XXX |
| 24 Seven Cloud Communications Ltd | 1 | 01728 569XXX |
| Adepteo Limited | 1 | 01728 584XXX |
| Atomstream Limited | 1 | 01728 552XXX |
| BT | 1 | 01728 598XXX |
| Belgacom International Carrier Services SA | 1 | 01728 595XXX |
| CFL Communications Ltd | 1 | 01728 51XXXX |
| Calltracks Limited | 1 | 01728 553XXX |
| Content Guru Limited | 1 | 01728 575XXX |
| Convergence Group (wireless) Networks Limited | 1 | 01728 563XXX |
…and 33 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 64 blocks Ofcom lists, 16 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 01728 5… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01728 caller IDs so their calls look like they come from Saxmundham (‘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 01728 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 01728 number ranges
Full 01728 Saxmundham area-code guide › · All UK area codes ›