United Kingdom

Number Code Allocated To Number Length Notes
01770 20xxxx Orange Home UK Plc 4+6 F-Digit '0'
01770 21xxxx TelNG Limited 4+6 F-Digit '2'
01770 22xxxx T.T.N.C. Limited 4+6 F-Digit '0,1,2,3,4,5,6,7,8,9'
01770 23xxxx Localphone Limited 4+6 F-Digit '0'
01770 24xxxx Opal Telecom Limited 4+6 F-Digit '8'
01770 25xxxx Skycom Ltd 4+6 F-Digit '2'
01770 26xxxx Teledesign plc 4+6 F-Digit '2'
01770 27xxxx Spitfire Network Services Ltd 4+6 F-Digit '7'
01770 28xxxx Coralbridge Ltd 4+6 F-Digit '0'
01770 29xxxx VoIP-Un Limited 4+6 F-Digit '0'
01770 30xxxx BT 4+6
01770 30xxxx WSBRD BT, Brodick (Strathclyde) 4+6
01770 31xxxx Telephony Services Limited 4+6 F-Digit '2'
01770 32xxxx InTechnology Plc 4+6 F-Digit '2'
01770 33xxxx Net-Work Internet Ltd 4+6 F-Digit '3'
01770 34xxxx Telecom2 Ltd 4+6
01770 35xxxx Timico Limited 4+6 F-Digit '8'
01770 36xxxx Telswitch Limited 4+6 F-Digit '0'
01770 37xxxx Frontier Systems Ltd 4+6 F-Digit '3'
01770 38xxxx Voxbone SA 4+6 F-Digit '8'
01770 39xxxx Known Future Limited 4+6 F-Digit '0'
01770 40xxxx Cable and Wireless (Energis) 4+6
01770 41xxxx LogicStar Limited 4+6
01770 42xxxx FleXtel Limited 4+6
01770 43xxxx Inclarity plc 4+6 F-Digit '2'
01770 44xxxx Net Solutions Europe Limited 4+6 F-Digit '4'
01770 45xxxx Edge Telecom Ltd 4+6
01770 46xxxx Gamma Telecom Holdings Ltd 4+6
01770 47xxxx C3 Europe Limited 4+6 F-Digit '6'
01770 48xxxx Colloquium Ltd 4+6
01770 49xxxx Virgin Media Limited 4+6 F-Digit '4,5'
01770 50xxxx Solutios Limited 4+6 F-Digit '2'
01770 51xxxx O-Bit Telecom Limited 4+6 F-Digit '7'
01770 52xxxx Mars Communications Limited 4+6 F-Digit '0'
01770 53xxxx IPV6 Limited 4+6 F-Digit '0'
01770 54xxxx Nexus Telecommunications plc 4+6 F-Digit '0'
01770 55xxxx Instant Telecommunications Ltd 4+6 F-Digit '0'
01770 56xxxx Telecoms World Plc 4+6 F-Digit '0'
01770 57xxxx Mundio Mobile Limited 4+6 F-Digit '6'
01770 58xxxx CFL Communications Limited 4+6 F-Digit '0'
01770 60xxxx BT 4+6
01770 60xxxx WSLAL BT, Lamlash (Strathclyde) 4+6
01770 62xxxx Danemere Street Creative 4+6 F-Digit '2'
01770 70xxxx BT 4+6
01770 70xxxx WSWHB BT, Whiting Bay (Strathclyde) 4+6
01770 80xxxx Magrathea Telecommunications Limited 4+6
01770 81xxxx BT 4+6
01770 81xxxx WSCOR BT, Corrie (North Ayrshire) 4+6
01770 82xxxx BT 4+6
01770 82xxxx WSKID BT, Kildonan (North Ayrshire) 4+6
01770 83xxxx BT 4+6
01770 83xxxx WSLOA BT, Lochranza (North Ayrshire) 4+6
01770 84xxxx BT 4+6
01770 84xxxx WSMAC BT, Machrie (North Ayrshire) 4+6
01770 85xxxx BT 4+6
01770 85xxxx WSPIR BT, Pirnmill (North Ayrshire) 4+6
01770 86xxxx BT 4+6
01770 86xxxx WSSHI BT, Shiskine (Strathclyde) 4+6
01770 87xxxx BT 4+6
01770 87xxxx WSSLI BT, Sliddery (North Ayrshire) 4+6
01770 88xxxx Freshtel UK Limited 4+6
01770 89xxxx BT 4+6
01770 89xxxx WSBRD BT, Brodick (Strathclyde) 4+6