- Prefix
01483 4- Area
- Guildford
- Number type
- Geographic landline (01/02)
- Format
01483 4XXXXX- From abroad
+44 1483 4XXXXX- Ofcom blocks in range
- 19
- Blocks in service
- 18
- Range holders
- 8
What are 01483 4XXXXX numbers?
Any UK number matching 01483 4XXXXX sits in the
01483 dialling code for Guildford.
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 Guildford area — or
organisations elsewhere that keep a local 01483 presence using
VoIP.
Who holds 01483 4… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| BT | 8 | 01483 40XXXX |
| TalkTalk Communications Limited | 3 | 01483 495XXX |
| Sky UK Limited | 2 | 01483 490XXX |
| Content Guru Limited | 1 | 01483 498XXX |
| GCI Network Solutions Limited | 1 | 01483 494XXX |
| IOVOX Limited | 1 | 01483 491XXX |
| Vodafone Ltd (C&W) | 1 | 01483 43XXXX |
| Ziron Limited | 1 | 01483 492XXX |
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 01483 4… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01483 caller IDs so their calls look like they come from Guildford (‘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 01483 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.
Run mobiles for a business? See our business mobile network comparison or get a quote.
More 01483 number ranges
Full 01483 Guildford area-code guide › · All UK area codes ›