United Kingdom

Number Code Allocated To Number Length Notes
01600 20xxxx Teledesign plc 4+6 F-Digit '2'
01600 21xxxx Frontier Systems Ltd 4+6 F-Digit '3'
01600 22xxxx Opal Telecom Limited 4+6 F-Digit '8'
01600 23xxxx Coralbridge Ltd 4+6 F-Digit '0'
01600 24xxxx Nationwide Telephone Assistance Ltd 4+6 F-Digit '0'
01600 25xxxx InTechnology Plc 4+6 F-Digit '2'
01600 26xxxx VoIP-Un Limited 4+6 F-Digit '0'
01600 27xxxx Telecom2 Ltd 4+6 F-Digit '6'
01600 28xxxx Timico Limited 4+6 F-Digit '8'
01600 29xxxx Telswitch Limited 4+6 F-Digit '0'
01600 30xxxx BT 4+6
01600 30xxxx SWMU BT, Monmouth (Gwent) 4+6
01600 31xxxx Starcomm Ltd 4+6 F-Digit '0'
01600 32xxxx Voxbone SA 4+6 F-Digit '8'
01600 33xxxx Net-Work Internet Ltd 4+6 F-Digit '3'
01600 34xxxx 3C Limited 4+6 F-Digit '2'
01600 35xxxx Known Future Limited 4+6 F-Digit '0'
01600 36xxxx Solutios Limited 4+6 F-Digit '2'
01600 37xxxx O-Bit Telecom Limited 4+6 F-Digit '7'
01600 38xxxx Mars Communications Limited 4+6 F-Digit '0'
01600 39xxxx IPV6 Limited 4+6 F-Digit '0'
01600 40xxxx Instant Telecommunications Ltd 4+6 F-Digit '0'
01600 41xxxx Nexus Telecommunications plc 4+6 F-Digit '0'
01600 42xxxx Telecoms World Plc 4+6 F-Digit '0'
01600 43xxxx Switch Services Ltd 4+6 F-Digit '0'
01600 44xxxx Mundio Mobile Limited 4+6 F-Digit '6'
01600 45xxxx CFL Communications Limited 4+6 F-Digit '0'
01600 50xxxx TELSTRA EUROPE LIMITED 4+6
01600 51xxxx Inclarity plc 4+6 F-Digit '2'
01600 52xxxx Freshtel UK Limited 4+6 F-Digit '7'
01600 53xxxx Virgin Media Limited 4+6 F-Digit '4,5'
01600 54xxxx Orange Home UK Plc 4+6 F-Digit '0'
01600 55xxxx Cable and Wireless (Energis) 4+6
01600 56xxxx TelNG Limited 4+6 F-Digit '2'
01600 57xxxx Spitfire Network Services Ltd 4+6 F-Digit '7'
01600 58xxxx Localphone Limited 4+6 F-Digit '0'
01600 59xxxx Skycom Ltd 4+6 F-Digit '2'
01600 70xxxx T.T.N.C. Limited 4+6 F-Digit '0,1,2,3,4,5,6,7,8,9'
01600 71xxxx BT 4+6
01600 71xxxx SWMU BT, Monmouth (Gwent) 4+6
01600 72xxxx Cable & Wireless UK 4+6
01600 73xxxx Gamma Telecom Holdings Ltd 4+6
01600 74xxxx BT 4+6
01600 74xxxx SWDWQ BT, Dingestow (Gwent) 4+6
01600 75xxxx BT 4+6
01600 76xxxx Edge Telecom Ltd 4+6
01600 77xxxx BT 4+6
01600 77xxxx SWMU BT, Monmouth (Gwent) 4+6
01600 78xxxx BT 4+6
01600 79xxxx LogicStar Limited 4+6
01600 80xxxx Telephony Services Limited 4+6
01600 81xxxx Syntec UK Ltd 4+6
01600 82xxxx Danemere Street Creative 4+6
01600 83xxxx C3 Europe Limited 4+6 F-Digit '0'
01600 84xxxx FleXtel Limited 4+6
01600 85xxxx IV Response Limited 4+6
01600 86xxxx BT 4+6
01600 86xxxx SWTEK BT, Trelleck (Gwent) 4+6
01600 87xxxx Net Solutions Europe Limited 4+6 F-Digit '7'
01600 88xxxx Magrathea Telecommunications Limited 4+6
01600 89xxxx BT 4+6