- Prefix
01877 5- Area
- Callander
- Number type
- Geographic landline (01/02)
- Format
01877 5XXXXX- From abroad
+44 1877 5XXXXX- Ofcom blocks in range
- 19
- Blocks in service
- 9
- Range holders
- 9
What are 01877 5XXXXX numbers?
Any UK number matching 01877 5XXXXX sits in the
01877 dialling code for Callander.
Ofcom hands these numbers to communications providers in blocks; this range
contains 19 blocks, of which
9 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Callander area — or
organisations elsewhere that keep a local 01877 presence using
VoIP.
Who holds 01877 5… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Barritel Limited | 1 | 01877 56XXXX |
| Digital Space Group Limited | 1 | 01877 53XXXX |
| Net-Work Internet Ltd | 1 | 01877 50XXXX |
| Nodemax Limited | 1 | 01877 54XXXX |
| Redcentric Solutions Limited | 1 | 01877 52XXXX |
| Served Up Limited | 1 | 01877 58XXXX |
| Solutios Limited | 1 | 01877 59XXXX |
| Telecom2 Limited | 1 | 01877 51XXXX |
| Voxbone SA | 1 | 01877 550XXX |
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 19 blocks Ofcom lists, 10 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 01877 5… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01877 caller IDs so their calls look like they come from Callander (‘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 01877 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 01877 number ranges
Full 01877 Callander area-code guide › · All UK area codes ›