01277 3XXXXX numbers – Brentwood

Prefix

01277 3

Area

Brentwood

Number type

Geographic landline (01/02)

Format

01277 3XXXXX

From abroad

+44 1277 3XXXXX

Ofcom blocks in range

28

Blocks in service

16

Range holders

4

What are 01277 3XXXXX numbers?

Any UK number matching 01277 3XXXXX sits in the 01277 dialling code for Brentwood. Ofcom hands these numbers to communications providers in blocks; this range contains 28 blocks, of which 16 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 3… number ranges?

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 28 blocks Ofcom lists, 12 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 3… 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 3XXXXX 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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More 01277 number ranges

Full 01277 Brentwood area-code guide › · All UK area codes ›