- Prefix
01325 5- Area
- Darlington
- Number type
- Geographic landline (01/02)
- Format
01325 5XXXXX- From abroad
+44 1325 5XXXXX- Ofcom blocks in range
- 28
- Blocks in service
- 19
- Range holders
- 16
What are 01325 5XXXXX numbers?
Any UK number matching 01325 5XXXXX sits in the
01325 dialling code for Darlington.
Ofcom hands these numbers to communications providers in blocks; this range
contains 28 blocks, of which
19 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Darlington area — or
organisations elsewhere that keep a local 01325 presence using
VoIP.
Who holds 01325 5… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| GTT-EMEA LTD | 3 | 01325 595XXX |
| Vodafone Ltd (C&W) | 2 | 01325 50XXXX |
| BT | 1 | 01325 55XXXX |
| Calltracks Limited | 1 | 01325 580XXX |
| Citrus Telecommunications Ltd | 1 | 01325 583XXX |
| Core Telecom Limited | 1 | 01325 581XXX |
| Datazero Ltd | 1 | 01325 586XXX |
| Flextel Limited | 1 | 01325 53XXXX |
| GCI Network Solutions Limited | 1 | 01325 54XXXX |
| Gamma Telecom Holdings Limited | 1 | 01325 52XXXX |
| Invosys Limited | 1 | 01325 589XXX |
| Phone Co-Op Numbering Limited | 1 | 01325 588XXX |
…and 4 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 28 blocks Ofcom lists, 9 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 01325 5… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01325 caller IDs so their calls look like they come from Darlington (‘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 01325 5XXXXX 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.
Run mobiles for a business? See our business mobile network comparison or get a quote.
More 01325 number ranges
Full 01325 Darlington area-code guide › · All UK area codes ›