- Prefix
01631 5- Area
- Oban
- Number type
- Geographic landline (01/02)
- Format
01631 5XXXXX- From abroad
+44 1631 5XXXXX- Ofcom blocks in range
- 46
- Blocks in service
- 21
- Range holders
- 15
What are 01631 5XXXXX numbers?
Any UK number matching 01631 5XXXXX sits in the
01631 dialling code for Oban.
Ofcom hands these numbers to communications providers in blocks; this range
contains 46 blocks, of which
21 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Oban area — or
organisations elsewhere that keep a local 01631 presence using
VoIP.
Who holds 01631 5… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Vodafone Ltd (C&W) | 4 | 01631 550XXX |
| BT | 3 | 01631 51XXXX |
| Chess Limited | 2 | 01631 500XXX |
| Content Guru Limited | 1 | 01631 585XXX |
| DRD Communications Limited | 1 | 01631 590XXX |
| Flextel Limited | 1 | 01631 54XXXX |
| GCI Network Solutions Limited | 1 | 01631 53XXXX |
| IOVOX Limited | 1 | 01631 583XXX |
| Kalnet4U Ltd | 1 | 01631 582XXX |
| Linear Telecoms Limited | 1 | 01631 580XXX |
| Magrathea Telecommunications Limited | 1 | 01631 52XXXX |
| Minotaur Telecom Limited | 1 | 01631 586XXX |
…and 3 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 46 blocks Ofcom lists, 25 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 01631 5… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01631 caller IDs so their calls look like they come from Oban (‘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 01631 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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