How much does it cost to call a 01770 number?

Calls to 01770 numbers are standard geographic landline calls, charged at your provider’s normal UK landline rate and usually included in inclusive minutes — the same as calling an 03 number.

I had a missed call from a 01770 number — is it a scam?

Not necessarily, but be careful: scammers spoof local codes such as 01770 so a call looks like it’s from Isle of Arran and you’re more likely to answer. If in doubt, hang up and call the organisation back on a number you find independently.

How do I dial a Isle of Arran number from abroad?

Drop the leading 0 and add +44. A number written as 01770 XXXXXX becomes +44 1770 XXXXXX when dialled internationally.

Can this tool tell me who owns the number?

No. It shows the area of the dialling code and the provider Ofcom allocated the number range to — not the individual or business holding a specific number, which may also have been ported to another network.

01770 Area Code – Isle of Arran | Dialling Code, Format & Call Charges

Q: Where is the 01770 area code?

01770 is the UK geographic dialling code for Isle of Arran. Any number written as 01770 XXXXXX is tied to the Isle of Arran dialling-code area, though with modern VoIP a business can keep its 01770 number after moving away.

Dialling code: 01770
Area: Isle of Arran
Number type: Geographic landline (01/02)
Local format: 01770 XXXXXX
From abroad: +44 1770 XXXXXX
Ofcom number blocks: 433
Blocks in service: 92
Range holders: 77

Where is the 01770 area code?

The 01770 dialling code is the UK geographic area code for Isle of Arran. Because 01770 is a geographic (01/02) code, a number using it is tied to the Isle of Arran dialling-code area — though with modern hosted telephony (VoIP) a business can keep a 01770 number after moving premises, so the code reflects the number’s designated area rather than a guaranteed physical location today.

Ofcom currently lists 433 number blocks under 01770, of which 92 are allocated to 77 communications providers.

Isle of Arran phone number format

A Isle of Arran number is made up of a 5-digit area code followed by a 5 or 6-digit local number. Written in full it looks like 01770 XXXXXX (the Xs stand for the local digits). Ofcom has not reserved a fictitious drama range for 01770; for on-screen examples it recommends the unused 01632 960000–01632 960999 range.

Who holds 01770 number ranges?

Ofcom allocates 01770 numbers to providers in blocks. These providers hold the largest allocations under 01770:

Range holder (allocated by Ofcom)	Number blocks	Example range
BT	11	`01770 30XXXX`
Digital Space Group Limited	2	`01770 35XXXX`
Fuse 2 Communications Ltd	2	`01770 644XXX`
GCI Network Solutions Limited	2	`01770 45XXXX`
Gamma Telecom Holdings Limited	2	`01770 46XXXX`
TalkTalk Communications Limited	2	`01770 248XXX`
(AQ) LIMITED	1	`01770 28XXXX`
24 Seven Cloud Communications Ltd	1	`01770 633XXX`

…and 69 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.

01770 number ranges

Browse the allocated 01770 ranges by their first local digit — each guide lists the providers holding that slice of Isle of Arran’s numbers:

01770 2XXXXX · 9 ranges 01770 3XXXXX · 10 ranges 01770 4XXXXX · 24 ranges 01770 5XXXXX · 17 ranges 01770 6XXXXX · 21 ranges 01770 7XXXXX · 1 ranges 01770 8XXXXX · 10 ranges

Call charges for 01770 numbers

Calls to 01770 geographic numbers are charged at your phone provider’s standard UK landline rate and are normally included in inclusive call minutes. UK-wide 03 numbers are guaranteed by Ofcom to cost the same as 01/02 calls, while 084, 087 and 09 numbers cost considerably more — always check the prefix before you dial.

Spotting spoofed 01770 scam calls

Fraudsters frequently spoof local dialling codes, faking the caller ID so a scam call appears to come from a Isle of Arran (01770) number you might trust. Remember:

A familiar 01770 area code is not proof the caller is local or genuine — caller ID can be faked.
Banks, HMRC and the police will never ask you to move money or share passwords or one-time codes over the phone.
If a call feels off, hang up, wait a moment, and call the organisation back on a number from their official website or your statement.
Report nuisance calls to the ICO and forward scam texts to 7726 (free).

Other dialling codes in this range

Numerically adjacent UK dialling codes:

01768 Penrith Area code guide 01769 South Molton Area code guide 01771 Maud Area code guide 01772 Preston Area code guide

Browse all UK area-code guides ›

Run mobiles for a business? See our business mobile network comparison or get a quote.

01770 area code – Isle of Arran