- Prefix
01277 4- Area
- Brentwood
- Number type
- Geographic landline (01/02)
- Format
01277 4XXXXX- From abroad
+44 1277 4XXXXX- Ofcom blocks in range
- 46
- Blocks in service
- 9
- Range holders
- 7
What are 01277 4XXXXX numbers?
Any UK number matching 01277 4XXXXX sits in the
01277 dialling code for Brentwood.
Ofcom hands these numbers to communications providers in blocks; this range
contains 46 blocks, of which
9 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Brentwood area — or
organisations elsewhere that keep a local 01277 presence using
VoIP.
Who holds 01277 4… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Resilient Limited | 3 | 01277 490XXX |
| AQL Wholesale Ltd | 1 | 01277 42XXXX |
| Commi Holdings Limited | 1 | 01277 46XXXX |
| Simwood eSMS Limited | 1 | 01277 40XXXX |
| Sky UK Limited | 1 | 01277 41XXXX |
| Spitfire Network Services Limited | 1 | 01277 487XXX |
| TelNG Limited | 1 | 01277 45XXXX |
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 46 blocks Ofcom lists, 37 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 01277 4… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01277 caller IDs so their calls look like they come from Brentwood (‘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 01277 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 01277 number ranges
Full 01277 Brentwood area-code guide › · All UK area codes ›