United Kingdom

Number Code Allocated To Number Length Notes
01997 20xxxx Orange Home UK Plc 4+6 F-Digit '0'
01997 21xxxx TelNG Limited 4+6 F-Digit '2'
01997 22xxxx Coralbridge Ltd 4+6 F-Digit '0'
01997 23xxxx Frontier Systems Ltd 4+6 F-Digit '3'
01997 24xxxx VoIP-Un Limited 4+6 F-Digit '0'
01997 25xxxx Opal Telecom Limited 4+6 F-Digit '8'
01997 26xxxx Entanet International Ltd 4+6 F-Digit '1'
01997 27xxxx Spitfire Network Services Ltd 4+6 F-Digit '7'
01997 28xxxx Localphone Limited 4+6 F-Digit '0'
01997 29xxxx Nationwide Telephone Assistance Ltd 4+6 F-Digit '0'
01997 30xxxx Net-Work Internet Ltd 4+6 F-Digit '0'
01997 31xxxx O-Bit Telecom Limited 4+6 F-Digit '7'
01997 32xxxx Telephony Services Limited 4+6 F-Digit '2'
01997 33xxxx InTechnology Plc 4+6 F-Digit '2'
01997 34xxxx Telecom2 Ltd 4+6 F-Digit '6'
01997 35xxxx Timico Limited 4+6 F-Digit '8'
01997 36xxxx Telswitch Limited 4+6 F-Digit '0'
01997 37xxxx Voxbone SA 4+6 F-Digit '8'
01997 38xxxx Starcomm Ltd 4+6 F-Digit '0'
01997 39xxxx Solutios Limited 4+6 F-Digit '2'
01997 40xxxx LogicStar Limited 4+6
01997 41xxxx BT 4+6
01997 41xxxx NSGRV BT, Garve (Highland) 4+6
01997 42xxxx BT 4+6
01997 42xxxx NSSPF BT, Strathpeffer (Highland) 4+6
01997 43xxxx BT 4+6
01997 43xxxx NSURR BT, Urray (Highland) 4+6
01997 44xxxx Edge Telecom Ltd 4+6
01997 45xxxx BT 4+6
01997 45xxxx NSALG BT, Aultguish (Highland) 4+6
01997 46xxxx BT 4+6
01997 46xxxx NSSWL BT, Scatwell (Highland) 4+6
01997 47xxxx BT 4+6
01997 47xxxx NSSCN BT, Strathconon (Highland) 4+6
01997 48xxxx Gamma Telecom Holdings Ltd 4+6
01997 49xxxx Virgin Media Limited 4+6 F-Digit '4,5'
01997 50xxxx Known Future Limited 4+6 F-Digit '7'
01997 51xxxx Mars Communications Limited 4+6 F-Digit '0'
01997 52xxxx 3C Limited 4+6 F-Digit '2'
01997 53xxxx IPV6 Limited 4+6 F-Digit '0'
01997 54xxxx Instant Telecommunications Ltd 4+6 F-Digit '0'
01997 55xxxx Telecoms World Plc 4+6 F-Digit '0'
01997 56xxxx Mundio Mobile Limited 4+6 F-Digit '6'
01997 57xxxx CFL Communications Limited 4+6 F-Digit '0'
01997 58xxxx Nexus Telecommunications plc 4+6 F-Digit '0'
01997 59xxxx Danemere Street Creative 4+6 F-Digit '2'
01997 90xxxx Net Solutions Europe Limited 4+6
01997 91xxxx Freshtel UK Limited 4+6
01997 92xxxx T.T.N.C. Limited 4+6 F-Digit '0,1,2,3,4,5,6,7,8,9'
01997 93xxxx Teledesign plc 4+6 F-Digit '2'
01997 94xxxx FleXtel Limited 4+6
01997 95xxxx Inclarity plc 4+6 F-Digit '2'
01997 96xxxx Skycom Ltd 4+6 F-Digit '2'
01997 97xxxx Magrathea Telecommunications Limited 4+6
01997 98xxxx Syntec UK Ltd 4+6