- Prefix
01420 4- Area
- Alton
- Number type
- Geographic landline (01/02)
- Format
01420 4XXXXX- From abroad
+44 1420 4XXXXX- Ofcom blocks in range
- 46
- Blocks in service
- 22
- Range holders
- 14
What are 01420 4XXXXX numbers?
Any UK number matching 01420 4XXXXX sits in the
01420 dialling code for Alton.
Ofcom hands these numbers to communications providers in blocks; this range
contains 46 blocks, of which
22 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 4… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Vodafone Ltd (C&W) | 8 | 01420 40XXXX |
| BT | 2 | 01420 47XXXX |
| Belgacom International Carrier Services SA | 1 | 01420 469XXX |
| Colt Technology Services | 1 | 01420 463XXX |
| DIDWW Ireland Limited | 1 | 01420 467XXX |
| EVE CONNECT LTD | 1 | 01420 468XXX |
| Fuse 2 Communications Ltd | 1 | 01420 464XXX |
| ICUK Computing Services Limited | 1 | 01420 465XXX |
| IP Voice Networks Ltd | 1 | 01420 460XXX |
| Localphone Limited | 1 | 01420 45XXXX |
| Magrathea Telecommunications Limited | 1 | 01420 44XXXX |
| Number Services Ltd. | 1 | 01420 466XXX |
…and 2 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 46 blocks Ofcom lists, 24 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 4… 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 4XXXXX 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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