- Prefix
01865 6- Area
- Oxford
- Number type
- Geographic landline (01/02)
- Format
01865 6XXXXX- From abroad
+44 1865 6XXXXX- Ofcom blocks in range
- 100
- Blocks in service
- 80
- Range holders
- 40
What are 01865 6XXXXX numbers?
Any UK number matching 01865 6XXXXX sits in the
01865 dialling code for Oxford.
Ofcom hands these numbers to communications providers in blocks; this range
contains 100 blocks, of which
80 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Oxford area — or
organisations elsewhere that keep a local 01865 presence using
VoIP.
Who holds 01865 6… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Gamma Telecom Holdings Limited | 16 | 01865 610XXX |
| Vodafone Ltd (C&W) | 8 | 01865 600XXX |
| BT | 5 | 01865 602XXX |
| Colt Technology Services | 5 | 01865 603XXX |
| Sky UK Limited | 4 | 01865 608XXX |
| Media Hawk Ltd | 3 | 01865 633XXX |
| Served Up Limited | 3 | 01865 635XXX |
| TalkTalk Communications Limited | 3 | 01865 604XXX |
| Connect Telecom UK Limited | 2 | 01865 665XXX |
| API Telecom Limited | 1 | 01865 659XXX |
| Andrews & Arnold (Numbers) Ltd | 1 | 01865 606XXX |
| Chess Limited | 1 | 01865 605XXX |
…and 28 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 100 blocks Ofcom lists, 18 are protected (reserved by Ofcom and not in use) and 1 are free/unallocated. A call appearing to come from an unallocated block is a strong sign of a spoofed number.
Is a call from a 01865 6… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01865 caller IDs so their calls look like they come from Oxford (‘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 01865 6XXXXX 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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