- Prefix
01420 5- Area
- Alton
- Number type
- Geographic landline (01/02)
- Format
01420 5XXXXX- From abroad
+44 1420 5XXXXX- Ofcom blocks in range
- 19
- Blocks in service
- 18
- Range holders
- 11
What are 01420 5XXXXX numbers?
Any UK number matching 01420 5XXXXX sits in the
01420 dialling code for Alton.
Ofcom hands these numbers to communications providers in blocks; this range
contains 19 blocks, of which
18 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Alton area — or
organisations elsewhere that keep a local 01420 presence using
VoIP.
Who holds 01420 5… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| BT | 8 | 01420 51XXXX |
| AQL Wholesale Ltd | 1 | 01420 50XXXX |
| Adepteo Limited | 1 | 01420 574XXX |
| Gamma Telecom Holdings Limited | 1 | 01420 55XXXX |
| I.T Communications Limited | 1 | 01420 570XXX |
| M247 Ltd | 1 | 01420 572XXX |
| Sky UK Limited | 1 | 01420 576XXX |
| VOXYONDER NETWORK SERVICES UK LTD | 1 | 01420 575XXX |
| Virgin Media Limited | 1 | 01420 578XXX |
| Voxbone SA | 1 | 01420 573XXX |
| YayYay Limited | 1 | 01420 579XXX |
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 19 blocks Ofcom lists, 1 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 01420 5… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01420 caller IDs so their calls look like they come from Alton (‘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 01420 5XXXXX 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.