United Kingdom

Number Code Allocated To Number Length Notes
01700 20xxxx Net-Work Internet Ltd 4+6 F-Digit '0'
01700 21xxxx O-Bit Telecom Limited 4+6 F-Digit '7'
01700 22xxxx Telecom2 Ltd 4+6 F-Digit '6'
01700 23xxxx Timico Limited 4+6 F-Digit '8'
01700 24xxxx Telswitch Limited 4+6 F-Digit '0'
01700 25xxxx Voxbone SA 4+6 F-Digit '8'
01700 26xxxx Starcomm Ltd 4+6 F-Digit '0'
01700 27xxxx 3C Limited 4+6 F-Digit '2'
01700 28xxxx Known Future Limited 4+6 F-Digit '0'
01700 29xxxx Solutios Limited 4+6 F-Digit '2'
01700 30xxxx IPV6 Limited 4+6 F-Digit '0'
01700 31xxxx Instant Telecommunications Ltd 4+6 F-Digit '0'
01700 32xxxx Mars Communications Limited 4+6 F-Digit '0'
01700 33xxxx Switch Services Ltd 4+6 F-Digit '0'
01700 34xxxx Telecoms World Plc 4+6 F-Digit '0'
01700 35xxxx Nexus Telecommunications plc 4+6 F-Digit '0'
01700 36xxxx Mundio Mobile Limited 4+6 F-Digit '6'
01700 37xxxx CFL Communications Limited 4+6 F-Digit '0'
01700 40xxxx FleXtel Limited 4+6
01700 41xxxx Inclarity plc 4+6 F-Digit '2'
01700 42xxxx C3 Europe Limited 4+6 F-Digit '0'
01700 43xxxx Virgin Media Limited 4+6 F-Digit '4,5'
01700 44xxxx Net Solutions Europe Limited 4+6 F-Digit '4'
01700 45xxxx Orange Home UK Plc 4+6 F-Digit '0'
01700 46xxxx TelNG Limited 4+6 F-Digit '2'
01700 47xxxx Spitfire Network Services Ltd 4+6 F-Digit '7'
01700 48xxxx Localphone Limited 4+6 F-Digit '0'
01700 49xxxx Frontier Systems Ltd 4+6 F-Digit '3'
01700 50xxxx BT 4+6
01700 50xxxx WSROT BT, Rothesay (Strathclyde) 4+6
01700 51xxxx LogicStar Limited 4+6
01700 52xxxx Danemere Street Creative 4+6
01700 53xxxx Teledesign plc 4+6 F-Digit '2'
01700 54xxxx Skycom Ltd 4+6 F-Digit '2'
01700 55xxxx T.T.N.C. Limited 4+6 F-Digit '0,1,2,3,4,5,6,7,8,9'
01700 56xxxx Magrathea Telecommunications Limited 4+6
01700 57xxxx Cable and Wireless (Energis) 4+6
01700 58xxxx Edge Telecom Ltd 4+6
01700 59xxxx Opal Telecom Limited 4+6
01700 60xxxx VoIP-Un Limited 4+6 F-Digit '0'
01700 61xxxx Telephony Services Limited 4+6 F-Digit '2'
01700 62xxxx InTechnology Plc 4+6 F-Digit '2'
01700 80xxxx Gamma Telecom Holdings Ltd 4+6
01700 81xxxx BT 4+6
01700 81xxxx WSTIG BT, Tighnabruaich (Strathclyde) 4+6
01700 82xxxx BT 4+6
01700 82xxxx WSKIF BT, Kilfinan (Argyll & Bute) 4+6
01700 83xxxx BT 4+6
01700 83xxxx WSKIB BT, Kilchattan Bay (Argyll & Bute) 4+6
01700 84xxxx BT 4+6
01700 84xxxx WSCOV BT, Colintraive (Argyll & Bute) 4+6
01700 85xxxx Thus Plc 4+6
01700 86xxxx Nationwide Telephone Assistance Ltd 4+6 F-Digit '0'
01700 87xxxx Syntec UK Ltd 4+6
01700 88xxxx Coralbridge Ltd 4+6 F-Digit '0'
01700 89xxxx BT 4+6
01700 89xxxx WSROT BT, Rothesay (Strathclyde) 4+6