BT phone numbers

BT holds 20,692 blocks of UK phone numbers allocated by Ofcom, the first one in 1994. Numbers from these ranges may be used by BT itself or by its business customers and resellers.

16,501Landline (01, 02)

428UK-wide (03)

3,011Freephone (080)

290Business rate (084, 087)

394Premium rate (09)

68Other (05 and more)

Main landline areas

020 London (1344) 028 Northern Ireland (349) 0161 Manchester (273) 01273 Brighton (232) 0121 Birmingham (226) 01782 Stoke-on-Trent (218) 01642 Middlesbrough (207) 01772 Preston (204) 01792 Swansea (188) 01382 Dundee (185) 01223 Cambridge (180) 0151 Liverpool (173)

Numbers from BT ranges on WhoCallsYou

0161 203 3230 Manchester · 0 reports No reports yet
0161 251 9014 Manchester · 0 reports No reports yet
0345 603 2821 Non-geographic · 0 reports No reports yet
0191 429 0924 Tyneside · 0 reports No reports yet
0800 032 3977 Freephone · 0 reports No reports yet
01924 962430 Wakefield · 0 reports No reports yet
020 8498 8293 London · 0 reports No reports yet
020 8962 7406 London · 0 reports No reports yet
020 8149 3957 London · 0 reports No reports yet
024 7670 6606 Coventry · 0 reports No reports yet
020 3010 9089 London · 0 reports No reports yet
020 4613 7066 London · 0 reports No reports yet
0330 174 5720 Non-geographic · 0 reports No reports yet
0800 328 5644 Freephone · 0 reports No reports yet
0330 174 0768 Non-geographic · 0 reports No reports yet
0800 171 2345 Freephone · 0 reports No reports yet

Did a BT number call you?

The range holder is the company Ofcom gave the numbers to. It is often not the caller: many providers sell numbers to call centres, businesses and internet phone services, and numbers can be moved (ported) to another network. Caller ID can also be faked.

To find out more, open the number and read the reports from other people. If the call was a scam, report it to Action Fraud. To stop the calls, see how to block unwanted calls.

Source: Ofcom numbering data, latest allocation 24 Jul 2026.