- Prefix
01858 6- Area
- Market
- Number type
- Geographic landline (01/02)
- Format
01858 6XXXXX- From abroad
+44 1858 6XXXXX- Ofcom blocks in range
- 46
- Blocks in service
- 22
- Range holders
- 13
What are 01858 6XXXXX numbers?
Any UK number matching 01858 6XXXXX sits in the
01858 dialling code for Market.
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 Market area — or
organisations elsewhere that keep a local 01858 presence using
VoIP.
Who holds 01858 6… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Barritel Limited | 9 | 01858 620XXX |
| Served Up Limited | 2 | 01858 638XXX |
| Belgacom International Carrier Services SA | 1 | 01858 698XXX |
| Bink Networks Ltd | 1 | 01858 697XXX |
| Digital Space Group Limited | 1 | 01858 657XXX |
| ICUK Computing Services Limited | 1 | 01858 696XXX |
| IPV6 Limited | 1 | 01858 67XXXX |
| KCOM Group Ltd | 1 | 01858 690XXX |
| Mars Communications Limited | 1 | 01858 66XXXX |
| Mi Telecom Limited | 1 | 01858 699XXX |
| SiPalto Ltd | 1 | 01858 695XXX |
| Sky UK Limited | 1 | 01858 68XXXX |
…and 1 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, 20 are protected (reserved by Ofcom and not in use) and 4 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 01858 6… 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 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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