- Prefix
01600 5- Area
- Monmouth
- Number type
- Geographic landline (01/02)
- Format
01600 5XXXXX- From abroad
+44 1600 5XXXXX- Ofcom blocks in range
- 64
- Blocks in service
- 16
- Range holders
- 15
What are 01600 5XXXXX numbers?
Any UK number matching 01600 5XXXXX sits in the
01600 dialling code for Monmouth.
Ofcom hands these numbers to communications providers in blocks; this range
contains 64 blocks, of which
16 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Monmouth area — or
organisations elsewhere that keep a local 01600 presence using
VoIP.
Who holds 01600 5… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Six Degrees Technology Group Limited | 2 | 01600 500XXX |
| 24 Seven Cloud Communications Ltd | 1 | 01600 526XXX |
| Adepteo Limited | 1 | 01600 523XXX |
| Barritel Limited | 1 | 01600 59XXXX |
| Colt Technology Services | 1 | 01600 528XXX |
| EVE CONNECT LTD | 1 | 01600 527XXX |
| Fuse 2 Communications Ltd | 1 | 01600 525XXX |
| I.T Communications Limited | 1 | 01600 524XXX |
| Localphone Limited | 1 | 01600 58XXXX |
| Nuso Cloud UK Limited | 1 | 01600 520XXX |
| Redwood Technologies Ltd | 1 | 01600 522XXX |
| Spitfire Network Services Limited | 1 | 01600 577XXX |
…and 3 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 64 blocks Ofcom lists, 48 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 01600 5… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01600 caller IDs so their calls look like they come from Monmouth (‘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 01600 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.
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