01858 Area Code — Market Harborough, UK
01858 is the UK dialling code for Market Harborough, allocated by Ofcom under the National Telephone Numbering Plan. Our database has tracked 4 distinct 01858 numbers across 4 public lookups.
Advertisement
Quick facts
Area code
01858
Location
Market Harborough
Number type
Geographic landline
Number format
01858 XXX XXX
Operators serving
8+
Call cost
Standard rate
Top searched 01858 numbers
These are the 01858 numbers most-looked-up by visitors to our number checker. Click any number to see its full lookup page with risk-level, range holder, and community reports.
| Number | Searches | Last looked up |
|---|---|---|
| 01858 431871 | 1 | 20 May 2026 |
| 01858 438802 | 1 | 15 May 2026 |
| 01858 798280 | 1 | 15 May 2026 |
| 01858 456157 | 1 | 7 May 2026 |
Operators serving Market Harborough
These UK communications providers have been allocated 01858 number blocks by Ofcom. The number of blocks per operator gives a rough sense of how widely each provider serves this area.
| Provider (Ofcom-allocated) | Allocated blocks |
|---|---|
| BT | 14 |
| Barritel Limited | 9 |
| Vodafone Ltd (C&W) | 9 |
| Gamma Telecom Holdings Limited | 8 |
| GCI Network Solutions Limited | 8 |
| Magrathea Telecommunications Limited | 6 |
| TalkTalk Communications Limited | 3 |
| Colt Technology Services | 2 |
Looking up a specific 01858 number?
If you have the full 10- or 11-digit number, use our free UK Phone Number Checker to see the Ofcom range holder, risk level, and any community reports for that specific number.