- Prefix
01205 5- Area
- Boston
- Number type
- Geographic landline (01/02)
- Format
01205 5XXXXX- From abroad
+44 1205 5XXXXX- Ofcom blocks in range
- 55
- Blocks in service
- 28
- Range holders
- 24
What are 01205 5XXXXX numbers?
Any UK number matching 01205 5XXXXX sits in the
01205 dialling code for Boston.
Ofcom hands these numbers to communications providers in blocks; this range
contains 55 blocks, of which
28 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Boston area — or
organisations elsewhere that keep a local 01205 presence using
VoIP.
Who holds 01205 5… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| GCI Network Solutions Limited | 3 | 01205 533XXX |
| Digital Space Group Limited | 2 | 01205 52XXXX |
| Telecom2 Limited | 2 | 01205 560XXX |
| Andrews & Arnold (Numbers) Ltd | 1 | 01205 579XXX |
| BT | 1 | 01205 59XXXX |
| Business Broadcast Communications Limited | 1 | 01205 588XXX |
| CFL Communications Ltd | 1 | 01205 584XXX |
| Commi Holdings Limited | 1 | 01205 570XXX |
| IPV6 Limited | 1 | 01205 578XXX |
| Inet Telecoms Ltd (Voipfone) | 1 | 01205 580XXX |
| Invade International Ltd | 1 | 01205 582XXX |
| KCOM Group Ltd | 1 | 01205 534XXX |
…and 12 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 55 blocks Ofcom lists, 27 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 01205 5… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01205 caller IDs so their calls look like they come from Boston (‘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 01205 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.
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