- Prefix
01858 8- Area
- Market
- Number type
- Geographic landline (01/02)
- Format
01858 8XXXXX- From abroad
+44 1858 8XXXXX- Ofcom blocks in range
- 46
- Blocks in service
- 18
- Range holders
- 7
What are 01858 8XXXXX numbers?
Any UK number matching 01858 8XXXXX sits in the
01858 dialling code for Market.
Ofcom hands these numbers to communications providers in blocks; this range
contains 46 blocks, of which
18 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Market area — or
organisations elsewhere that keep a local 01858 presence using
VoIP.
Who holds 01858 8… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Vodafone Ltd (C&W) | 7 | 01858 82XXXX |
| Magrathea Telecommunications Limited | 6 | 01858 890XXX |
| BT | 1 | 01858 88XXXX |
| GCI Network Solutions Limited | 1 | 01858 85XXXX |
| Six Degrees Technology Group Limited | 1 | 01858 874XXX |
| TGL Services (UK) Ltd | 1 | 01858 80XXXX |
| VoiceHost Limited | 1 | 01858 810XXX |
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, 28 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 01858 8… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01858 caller IDs so their calls look like they come from Market (‘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 01858 8XXXXX 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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