01558 Area Code — Llandeilo, UK
01558 is the UK dialling code for Llandeilo, allocated by Ofcom under the National Telephone Numbering Plan. Our database has tracked 1 distinct 01558 numbers across 1 public lookups.
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Quick facts
Area code
01558
Location
Llandeilo
Number type
Geographic landline
Number format
01558 XXX XXX
Operators serving
8+
Call cost
Standard rate
Top searched 01558 numbers
These are the 01558 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 |
|---|---|---|
| 01558 651914 | 1 | 17 May 2026 |
Operators serving Llandeilo
These UK communications providers have been allocated 01558 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 | 4 |
| Lumen Technologies UK Limited | 3 |
| Fuse 2 Communications Ltd | 2 |
| Mi Telecom Limited | 2 |
| GCI Network Solutions Limited | 2 |
| Digital Space Group Limited | 2 |
| TalkTalk Communications Limited | 2 |
| Six Degrees Technology Group Limited | 1 |
Looking up a specific 01558 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.