Dialling code
01555
Area
Lanark
Number type
Geographic landline (01/02)
Local format
01555 XXXXXX
From abroad
+44 1555 XXXXXX
Ofcom number blocks
352
Blocks in service
116
Range holders
88

Where is the 01555 area code?

The 01555 dialling code is the UK geographic area code for Lanark. Because 01555 is a geographic (01/02) code, a number using it is tied to the Lanark dialling-code area — though with modern hosted telephony (VoIP) a business can keep a 01555 number after moving premises, so the code reflects the number’s designated area rather than a guaranteed physical location today.

Ofcom currently lists 352 number blocks under 01555, of which 116 are allocated to 88 communications providers.

Lanark phone number format

A Lanark 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 01555 XXXXXX (the Xs stand for the local digits). Ofcom has not reserved a fictitious drama range for 01555; for on-screen examples it recommends the unused 01632 96000001632 960999 range.

Who holds 01555 number ranges?

Ofcom allocates 01555 numbers to providers in blocks. These providers hold the largest allocations under 01555:

Range holder (allocated by Ofcom)Number blocksExample range
BT1401555 535XXX
Sky UK Limited501555 445XXX
Resilient Limited301555 790XXX
TalkTalk Communications Limited301555 450XXX
Vodafone Ltd (C&W)301555 37XXXX
Digital Space Group Limited201555 26XXXX
Digitech Solutions Global Limited201555 430XXX
Fuse 2 Communications Ltd201555 474XXX

…and 80 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.

01555 number ranges

Browse the allocated 01555 ranges by their first local digit — each guide lists the providers holding that slice of Lanark’s numbers:

Call charges for 01555 numbers

Calls to 01555 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 01555 scam calls

Fraudsters frequently spoof local dialling codes, faking the caller ID so a scam call appears to come from a Lanark (01555) number you might trust. Remember:

  • A familiar 01555 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:

Browse all UK area-code guides ›

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