- Prefix
01503 6- Area
- Looe
- Number type
- Geographic landline (01/02)
- Format
01503 6XXXXX- From abroad
+44 1503 6XXXXX- Ofcom blocks in range
- 82
- Blocks in service
- 35
- Range holders
- 35
What are 01503 6XXXXX numbers?
Any UK number matching 01503 6XXXXX sits in the
01503 dialling code for Looe.
Ofcom hands these numbers to communications providers in blocks; this range
contains 82 blocks, of which
35 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Looe area — or
organisations elsewhere that keep a local 01503 presence using
VoIP.
Who holds 01503 6… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| 24 Seven Cloud Communications Ltd | 1 | 01503 641XXX |
| API Telecom Limited | 1 | 01503 634XXX |
| Adepteo Limited | 1 | 01503 651XXX |
| BT | 1 | 01503 661XXX |
| Belgacom International Carrier Services SA | 1 | 01503 648XXX |
| Bicom Systems EURL | 1 | 01503 632XXX |
| Bink Networks Ltd | 1 | 01503 669XXX |
| CFL Communications Ltd | 1 | 01503 60XXXX |
| Colt Technology Services | 1 | 01503 653XXX |
| DIDWW Ireland Limited | 1 | 01503 649XXX |
| Dial 9 Communications Limited | 1 | 01503 640XXX |
| EVE CONNECT LTD | 1 | 01503 644XXX |
…and 23 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 82 blocks Ofcom lists, 39 are protected (reserved by Ofcom and not in use) and 8 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 01503 6… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01503 caller IDs so their calls look like they come from Looe (‘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 01503 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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