United Kingdom

Number Code Allocated To Number Length Notes
01664 20xxxx Nationwide Telephone Assistance Ltd 4+6 F-Digit '0'
01664 21xxxx Coralbridge Ltd 4+6 F-Digit '0'
01664 22xxxx Teledesign plc 4+6 F-Digit '2'
01664 23xxxx Frontier Systems Ltd 4+6 F-Digit '3'
01664 24xxxx Switch Services Ltd 4+6 F-Digit '0'
01664 25xxxx VoIP-Un Limited 4+6 F-Digit '0'
01664 26xxxx InTechnology Plc 4+6 F-Digit '2'
01664 27xxxx Telecom2 Ltd 4+6 F-Digit '6'
01664 28xxxx Timico Limited 4+6 F-Digit '8'
01664 29xxxx Telswitch Limited 4+6 F-Digit '0'
01664 30xxxx Tiscali UK Limited 4+6 F-Digit '0'
01664 31xxxx Voxbone SA 4+6 F-Digit '8'
01664 32xxxx Starcomm Ltd 4+6 F-Digit '0'
01664 33xxxx 3C Limited 4+6 F-Digit '2'
01664 34xxxx Known Future Limited 4+6 F-Digit '1'
01664 35xxxx Solutios Limited 4+6 F-Digit '2'
01664 36xxxx Mars Communications Limited 4+6 F-Digit '0'
01664 37xxxx Easynet Group Ltd 4+6 F-Digit '0'
01664 38xxxx Instant Telecommunications Ltd 4+6 F-Digit '0'
01664 39xxxx Telecoms World Direct Ltd 4+6 F-Digit '0'
01664 40xxxx Telephony Services Limited 4+6
01664 41xxxx BT 4+6
01664 41xxxx EMMELTN BT, Melton Mowbray (Leicestershire) 4+6
01664 42xxxx BT 4+6
01664 42xxxx EMRRSBB BT, Rearsby (Leicestershire) 4+6
01664 433xxx EMROTTB BT, Rotherby (Leicestershire) 4+6
01664 434xxx EMROTTB BT, Rotherby (Leicestershire) 4+6
01664 438xxx EMMELTN BT, Melton Mowbray (Leicestershire) 4+6
01664 43xxxx BT 4+6
01664 44xxxx BT 4+6
01664 44xxxx EMSCALF BT, Scalford (Leicestershire) 4+6
01664 45xxxx BT 4+6
01664 45xxxx EMSOMER BT, Somerby (Leicestershire) 4+6
01664 46xxxx BT 4+6
01664 46xxxx EMWLTHA BT, Waltham On the Wolds (Leicestershire) 4+6
01664 47xxxx BT 4+6
01664 47xxxx EMWHISS BT, Whissendine (Leicestershire) 4+6
01664 48xxxx BT 4+6
01664 48xxxx EMMELTN BT, Melton Mowbray (Leicestershire) 4+6
01664 49xxxx Gamma Telecom Holdings Ltd 4+6
01664 50xxxx BT 4+6
01664 50xxxx EMMELTN BT, Melton Mowbray (Leicestershire) 4+6
01664 51xxxx LogicStar Limited 4+6
01664 52xxxx Inclarity plc 4+6
01664 53xxxx BT 4+6
01664 53xxxx EMMELTN BT, Melton Mowbray (Leicestershire) 4+6
01664 54xxxx Thus Plc 4+6
01664 55xxxx Edge Telecom Ltd 4+6
01664 56xxxx BT 4+6
01664 56xxxx EMMELTN BT, Melton Mowbray (Leicestershire) 4+6
01664 57xxxx FleXtel Limited 4+6
01664 58xxxx VTL (UK) Limited 4+6 F-Digit '5'
01664 59xxxx TG Support Limited 4+6
01664 60xxxx Syntec UK Ltd 4+6 F-Digit '2'
01664 61xxxx Orange Home UK Plc 4+6 F-Digit '0'
01664 62xxxx TelNG Limited 4+6 F-Digit '2'
01664 63xxxx Localphone Limited 4+6 F-Digit '0'
01664 64xxxx Net Solutions Europe Limited 4+6 F-Digit '4'
01664 65xxxx T.T.N.C. Limited 4+6 F-Digit '0,1,2,3,4,5,6,7,8,9'
01664 66xxxx Opal Telecom Limited 4+6 F-Digit '8'
01664 67xxxx Spitfire Network Services Ltd 4+6 F-Digit '7'
01664 68xxxx Skycom Ltd 4+6 F-Digit '2'
01664 69xxxx Net-Work Internet Ltd 4+6 F-Digit '0'
01664 70xxxx IPV6 Limited 4+6 F-Digit '0'
01664 71xxxx Mundio Mobile Limited 4+6 F-Digit '6'
01664 72xxxx CFL Communications Limited 4+6 F-Digit '0'
01664 73xxxx Qeito Network Solutions Ltd 4+6 F-Digit '3'
01664 74xxxx Danemere Street Creative 4+6 F-Digit '2'
01664 75xxxx Known Communications Limited 4+6 F-Digit '0'
01664 76xxxx Nexus Telecommunications plc 4+6 F-Digit '0'
01664 80xxxx Virgin Media Limited 4+6
01664 81xxxx BT 4+6
01664 81xxxx EMASFOR BT, Asfordby (Leicestershire) 4+6
01664 82xxxx BT 4+6
01664 82xxxx EMNETHB BT, Nether Broughton (Nottinghamshire) 4+6
01664 83xxxx Freshtel UK Limited 4+6
01664 84xxxx BT 4+6
01664 84xxxx EMGADDE BT, Gaddesby (Leicestershire) 4+6
01664 85xxxx Virgin Media Limited 4+6
01664 86xxxx Cable & Wireless UK 4+6
01664 87xxxx TELSTRA EUROPE LIMITED 4+6
01664 88xxxx Affiniti Integrated Solutions Ltd 4+6
01664 89xxxx Magrathea Telecommunications Limited 4+6