- Prefix
01770 2- Area
- Isle of Arran
- Number type
- Geographic landline (01/02)
- Format
01770 2XXXXX- From abroad
+44 1770 2XXXXX- Ofcom blocks in range
- 37
- Blocks in service
- 9
- Range holders
- 8
What are 01770 2XXXXX numbers?
Any UK number matching 01770 2XXXXX sits in the
01770 dialling code for Isle of Arran.
Ofcom hands these numbers to communications providers in blocks; this range
contains 37 blocks, of which
9 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Isle of Arran area — or
organisations elsewhere that keep a local 01770 presence using
VoIP.
Who holds 01770 2… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| TalkTalk Communications Limited | 2 | 01770 248XXX |
| (AQ) LIMITED | 1 | 01770 28XXXX |
| Barritel Limited | 1 | 01770 25XXXX |
| Localphone Limited | 1 | 01770 23XXXX |
| Spitfire Network Services Limited | 1 | 01770 277XXX |
| TTNC Limited | 1 | 01770 22XXXX |
| TelNG Limited | 1 | 01770 21XXXX |
| VoIP-Un Limited | 1 | 01770 29XXXX |
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 37 blocks Ofcom lists, 28 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 01770 2… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01770 caller IDs so their calls look like they come from Isle of Arran (‘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 01770 2XXXXX 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 01770 number ranges
Full 01770 Isle of Arran area-code guide › · All UK area codes ›