01556 Area Code — Castle Douglas, UK
01556 is the UK dialling code for Castle Douglas, allocated by Ofcom under the National Telephone Numbering Plan. Our database has tracked 3 distinct 01556 numbers across 3 public lookups.
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Quick facts
Area code
01556
Location
Castle Douglas
Number type
Geographic landline
Number format
01556 XXX XXX
Operators serving
8+
Call cost
Standard rate
Top searched 01556 numbers
These are the 01556 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 |
|---|---|---|
| 01556 350342 | 1 | 19 May 2026 |
| 01556 632884 | 1 | 19 May 2026 |
| 01556 542367 | 1 | 1 May 2026 |
Operators serving Castle Douglas
These UK communications providers have been allocated 01556 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 | 13 |
| Fuse 2 Communications Ltd | 2 |
| Sky UK Limited | 2 |
| I.T Communications Limited | 2 |
| Digitech Solutions Global Limited | 2 |
| Digital Space Group Limited | 2 |
| TalkTalk Communications Limited | 2 |
| Vodafone Ltd (C&W) | 2 |
Looking up a specific 01556 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.