Prefix
01856 4
Area
Orkney
Number type
Geographic landline (01/02)
Format
01856 4XXXXX
From abroad
+44 1856 4XXXXX
Ofcom blocks in range
55
Blocks in service
35
Range holders
35

What are 01856 4XXXXX numbers?

Any UK number matching 01856 4XXXXX sits in the 01856 dialling code for Orkney. Ofcom hands these numbers to communications providers in blocks; this range contains 55 blocks, of which 35 are allocated and usable. Calls from these numbers are typically homes and businesses in the Orkney area — or organisations elsewhere that keep a local 01856 presence using VoIP.

Who holds 01856 4… number ranges?

Range holder (allocated by Ofcom)Number blocksExample range
API Telecom Limited101856 483XXX
Andrews & Arnold (Numbers) Ltd101856 404XXX
Atomstream Limited101856 460XXX
Bicom Systems EURL101856 481XXX
CFL Communications Ltd101856 44XXXX
Content Guru Limited101856 489XXX
Fuse 2 Communications Ltd101856 497XXX
GCI Network Solutions Limited101856 467XXX
Hello Telecom (UK) Limited101856 479XXX
I.T Communications Limited101856 476XXX
ICC Networks Ltd101856 482XXX
IOVOX Limited101856 485XXX

…and 23 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 55 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 01856 4… number safe?

A local-looking number is never proof of who is calling: fraudsters spoof 01856 caller IDs so their calls look like they come from Orkney (‘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 01856 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.

Run mobiles for a business? See our business mobile network comparison or get a quote.

More 01856 number ranges

Full 01856 Orkney area-code guide › · All UK area codes ›