01503 Area Code
The dialling code for Looe: what 01503 numbers are, who holds them, and what to do about a call you don't recognise.
What Is the 01503 Area Code?
Looe landline number. 01503 is the dialling code for Looe. Numbers starting 01503 are landline numbers for that area. Internet phone services can use them too, so a caller is not necessarily in Looe.
Who was the range allocated to?
Ofcom has allocated 01503 numbers to 82 providers. The largest holders are BT, Digital Space Group Limited and GCI Network Solutions Limited.
Numbers can be moved (ported) between networks, so the network a caller uses today may not be the one Ofcom allocated the block to. The allocation does not identify the person or business using a number.
Had a call from a 01503 number you don't recognise?
We can't tell you who called: an area code only shows the type of number and the provider Ofcom allocated the range to.
- Don't call back in a hurry, even if a message says it's urgent. Never give bank details or security codes on a call you didn't expect.
- Block the number from your phone's recent calls list.
- Forward scam texts free to 7726. Report unwanted marketing calls to the ICO, and see Ofcom's advice on scam calls.
- Register your number with the Telephone Preference Service to opt out of sales calls.
About the 01503 Range
| Number type | Looe landline number |
|---|---|
| Area | Looe |
| Number format | 01503 XXXXXX |
| Allocated by Ofcom | 37% of the range, to 82 providers |
| First allocation on record | 15 July 1994 |
| Most recent allocation | 26 January 2026 |
Largest holders of 01503 numbers
| Provider (as allocated by Ofcom) | Share of range | First allocated |
|---|---|---|
| BT | 6% | 15 July 1994 |
| Digital Space Group Limited | 1% | 1 May 2008 |
| GCI Network Solutions Limited | 1% | 2 May 2017 |
| (Aq) Limited | 1% | 19 October 2011 |
| AQL Wholesale Ltd | 1% | 23 June 2006 |
| Andrews & Arnold (Numbers) Ltd | 1% | 13 March 2009 |
76 more providers hold smaller blocks.
Allocation data: Ofcom numbering data, as published 28 October 2026.
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Common Questions About 01503 Numbers
Where is the 01503 area code?
01503 is the dialling code for Looe. Numbers starting 01503 are landline numbers for that area. Internet phone services can use them too, so a caller is not necessarily in Looe.
Is 01503 a mobile number?
No. 01503 is a landline (geographic) area code for Looe. UK mobile numbers start with 07.
Who does the 01503 range belong to?
Ofcom has allocated 01503 numbers to 82 providers. The largest holders are BT, Digital Space Group Limited and GCI Network Solutions Limited. Numbers can be moved (ported) between networks, so the network a caller uses today may not be the one Ofcom allocated the block to. The allocation does not identify the person or business using a number.
Who called me from a 01503 number?
We can't tell you who called. An area code only shows the type of number and which provider Ofcom allocated the range to. If you don't recognise a 01503 number, don't call back in a hurry, and never give out bank details or security codes on a call you didn't expect.
Block the number from your phone's recent calls list. Forward scam texts free to 7726, report unwanted marketing calls to the ICO, and see Ofcom's advice on scam calls.