- Prefix
01738 4- Area
- Perth
- Number type
- Geographic landline (01/02)
- Format
01738 4XXXXX- From abroad
+44 1738 4XXXXX- Ofcom blocks in range
- 37
- Blocks in service
- 17
- Range holders
- 4
What are 01738 4XXXXX numbers?
Any UK number matching 01738 4XXXXX sits in the
01738 dialling code for Perth.
Ofcom hands these numbers to communications providers in blocks; this range
contains 37 blocks, of which
17 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Perth area — or
organisations elsewhere that keep a local 01738 presence using
VoIP.
Who holds 01738 4… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| GCI Network Solutions Limited | 10 | 01738 480XXX |
| BT | 5 | 01738 41XXXX |
| Linear Telecoms Limited | 1 | 01738 430XXX |
| TGL Services (UK) Ltd | 1 | 01738 40XXXX |
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 37 blocks Ofcom lists, 20 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 01738 4… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01738 caller IDs so their calls look like they come from Perth (‘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 01738 4XXXXX 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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