United Kingdom

Number Code Allocated To Number Length Notes
01688 20xxxx TelNG Limited 4+6 F-Digit '2'
01688 21xxxx Telephony Services Limited 4+6 F-Digit '2'
01688 22xxxx Skycom Ltd 4+6 F-Digit '2'
01688 23xxxx Coralbridge Ltd 4+6 F-Digit '0'
01688 24xxxx Opal Telecom Limited 4+6 F-Digit '8'
01688 25xxxx Telephony Services Limited 4+6 F-Digit '2'
01688 26xxxx Teledesign plc 4+6 F-Digit '2'
01688 27xxxx O-Bit Telecom Limited 4+6 F-Digit '7'
01688 28xxxx Localphone Limited 4+6 F-Digit '0'
01688 29xxxx VoIP-Un Limited 4+6 F-Digit '0'
01688 30xxxx BT 4+6
01688 30xxxx WSTOB BT, Tobermory (Strathclyde) 4+6
01688 31xxxx Virgin Media Limited 4+6 F-Digit '4,5'
01688 32xxxx Gamma Telecom Holdings Ltd 4+6
01688 33xxxx Net Solutions Europe Limited 4+6 F-Digit '3'
01688 34xxxx T.T.N.C. Limited 4+6 F-Digit '0,1,2,3,4,5,6,7,8,9'
01688 35xxxx Telecom2 Ltd 4+6 F-Digit '6'
01688 36xxxx InTechnology Plc 4+6 F-Digit '2'
01688 37xxxx Timico Limited 4+6 F-Digit '8'
01688 38xxxx C3 Europe Limited 4+6 F-Digit '8'
01688 39xxxx Spitfire Network Services Ltd 4+6 F-Digit '7'
01688 40xxxx BT 4+6
01688 40xxxx WSDER BT, Dervaig (Argyll & Bute) 4+6
01688 41xxxx Starcomm Ltd 4+6 F-Digit '0'
01688 42xxxx 3C Limited 4+6 F-Digit '2'
01688 43xxxx Known Future Limited 4+6 F-Digit '7'
01688 44xxxx Net-Work Internet Ltd 4+6 F-Digit '4'
01688 45xxxx Solutios Limited 4+6 F-Digit '2'
01688 46xxxx Mars Communications Limited 4+6 F-Digit '0'
01688 47xxxx IPV6 Limited 4+6 F-Digit '0'
01688 48xxxx Instant Telecommunications Ltd 4+6 F-Digit '0'
01688 49xxxx Telecoms World Plc 4+6 F-Digit '0'
01688 50xxxx BT 4+6
01688 50xxxx WSULV BT, Ulva Ferry (Argyll & Bute) 4+6
01688 51xxxx Magrathea Telecommunications Limited 4+6
01688 52xxxx Orange Home UK Plc 4+6 F-Digit '0'
01688 53xxxx Telswitch Limited 4+6 F-Digit '0'
01688 54xxxx Frontier Systems Ltd 4+6 F-Digit '3'
01688 55xxxx FleXtel Limited 4+6
01688 56xxxx Inclarity plc 4+6 F-Digit '2'
01688 57xxxx Voxbone SA 4+6 F-Digit '8'
01688 58xxxx Edge Telecom Ltd 4+6
01688 59xxxx LogicStar Limited 4+6
01688 60xxxx Cable and Wireless (Energis) 4+6
01688 61xxxx CFL Communications Limited 4+6 F-Digit '0'
01688 62xxxx Danemere Street Creative 4+6 F-Digit '2'
01688 64xxxx Nexus Telecommunications plc 4+6 F-Digit '0'