United Kingdom

Number Code Allocated To Number Length Notes
01257 20xxxx LogicStar Limited 4+6
01257 21xxxx Citrus Telecommunications Ltd 4+6 F-Digit '2'
01257 22xxxx BT 4+6
01257 22xxxx LCCHO BT, Chorley (Lancashire) 4+6
01257 23xxxx BT 4+6
01257 23xxxx LCCHO BT, Chorley (Lancashire) 4+6
01257 24xxxx BT 4+6
01257 24xxxx LCCHO BT, Chorley (Lancashire) 4+6
01257 25xxxx BT 4+6
01257 26xxxx BT 4+6
01257 26xxxx LCCHO BT, Chorley (Lancashire) 4+6
01257 27xxxx BT 4+6
01257 28xxxx Cable & Wireless Plc 4+6
01257 29xxxx FleXtel Limited 4+6
01257 30xxxx Virgin Media Limited 4+6 F-Digit '4,5'
01257 31xxxx Orange Home UK Plc 4+6 F-Digit '0'
01257 32xxxx TelNG Limited 4+6 F-Digit '2'
01257 33xxxx Danemere Street Creative 4+6
01257 34xxxx Global Crossing (UK) Ltd 4+6 F-Digit '4'
01257 35xxxx Teledesign plc 4+6 F-Digit '2'
01257 36xxxx Opal Telecom Limited 4+6 F-Digit '8'
01257 37xxxx Spitfire Network Services Ltd 4+6 F-Digit '7'
01257 38xxxx Localphone Limited 4+6 F-Digit '0'
01257 39xxxx Starcomm Ltd 4+6 F-Digit '0'
01257 40xxxx Telewest Communications Group Limited 4+6
01257 41xxxx Telewest Communications Group Limited 4+6
01257 42xxxx BT 4+6
01257 43xxxx Easynet Group Ltd 4+6 F-Digit '0'
01257 44xxxx Gamma Telecom Holdings Ltd 4+6
01257 45xxxx BT 4+6
01257 45xxxx LCECC BT, Eccleston (Lancashire) 4+6
01257 460xxx LCCHO BT, Chorley (Lancashire) 4+6
01257 462xxx LCPAR BT, Parbold (Lancashire) 4+6
01257 465xxx LCPAR BT, Parbold (Lancashire) 4+6
01257 469xxx LCCHO BT, Chorley (Lancashire) 4+6
01257 46xxxx BT 4+6
01257 470xxx LCCOP BT, Coppull (Lancashire) 4+6
01257 474xxx LCADL BT, Adlington (Lancashire) 4+6
01257 476xxx LCADL BT, Adlington (Lancashire) 4+6
01257 477xxx LCCOP BT, Coppull (Lancashire) 4+6
01257 479xxx LCCHO BT, Chorley (Lancashire) 4+6
01257 47xxxx BT 4+6
01257 48xxxx BT 4+6
01257 48xxxx LCADL BT, Adlington (Lancashire) 4+6
01257 49xxxx Cable & Wireless Plc 4+6
01257 50xxxx Telewest Communications Group Limited 4+6
01257 51xxxx Telewest Communications Group Limited 4+6
01257 52xxxx Thus Plc 4+6
01257 53xxxx InTechnology Plc 4+6
01257 54xxxx C3 Europe Limited 4+6
01257 55xxxx Inclarity plc 4+6
01257 562xxx LCCHO BT, Chorley (Lancashire) 4+6
01257 565xxx LCCHO BT, Chorley (Lancashire) 4+6
01257 56xxxx BT 4+6
01257 57xxxx Cable and Wireless (Energis) 4+6
01257 58xxxx Affiniti Integrated Solutions Ltd 4+6
01257 59xxxx T.T.N.C. Limited 4+6 F-Digit '1,2,3'
01257 60xxxx Coralbridge Ltd 4+6 F-Digit '0'
01257 61xxxx VoIP-Un Limited 4+6 F-Digit '0'
01257 62xxxx Your Communications Ltd 4+6
01257 63xxxx Frontier Systems Ltd 4+6 F-Digit '3'
01257 64xxxx Timico Limited 4+6 F-Digit '8'
01257 65xxxx Voxbone SA 4+6 F-Digit '8'
01257 66xxxx Net-Work Internet Ltd 4+6 F-Digit '6'
01257 670xxx Telecom2 Ltd 4+6
01257 671xxx Tiscali UK Limited 4+6
01257 672xxx Solutios Limited 4+6
01257 673xxx 3C Limited 4+6
01257 674xxx Callagenix Ltd 4+6
01257 675xxx Skycom Ltd 4+6
01257 676xxx Nationwide Telephone Assistance Ltd 4+6
01257 677xxx Resilient Networks Plc 4+6
01257 678xxx Telswitch Limited 4+6
01257 679xxx Skymarket Limited 4+6
01257 680xxx O-Bit Telecom Limited 4+6
01257 681xxx IPV6 Limited 4+6
01257 682xxx Mars Communications Limited 4+6
01257 683xxx Instant Telecommunications Ltd 4+6
01257 684xxx Telecoms World Plc 4+6
01257 685xxx Switch Services Ltd 4+6
01257 686xxx INET Telecoms Ltd (Voipfone) 4+6
01257 687xxx Mundio Mobile Limited 4+6
01257 688xxx TeleWare PLC 4+6
01257 689xxx CFL Communications Limited 4+6
01257 690xxx Known Communications Limited 4+6
01257 691xxx Nexus Telecommunications plc 4+6
01257 692xxx Invomo Ltd 4+6
01257 693xxx Orbis Telecom 4+6
01257 70xxxx Net Solutions Europe Limited 4+6
01257 71xxxx Known Future Limited 4+6 F-Digit '1'
01257 72xxxx Edge Telecom Ltd 4+6
01257 73xxxx Telephony Services Limited 4+6 F-Digit '3'
01257 74xxxx Syntec UK Ltd 4+6
01257 75xxxx Magrathea Telecommunications Limited 4+6
01257 76xxxx TELSTRA EUROPE LIMITED 4+6
01257 77xxxx Virgin Media Limited 4+6
01257 78xxxx Freshtel UK Limited 4+6 F-Digit '0'
01257 79xxxx BT 4+6
01257 79xxxx LCCOP BT, Coppull (Lancashire) 4+6
0125714xxxx Telewest Communications Group Limited (0)+10