United Kingdom

Number Code Allocated To Number Length Notes
01971 20xxxx Coralbridge Ltd 4+6 F-Digit '0'
01971 21xxxx Opal Telecom Limited 4+6 F-Digit '8'
01971 22xxxx Net-Work Internet Ltd 4+6 F-Digit '2'
01971 23xxxx VoIP-Un Limited 4+6 F-Digit '0'
01971 24xxxx Teledesign plc 4+6 F-Digit '2'
01971 25xxxx Frontier Systems Ltd 4+6 F-Digit '3'
01971 26xxxx Telephony Services Limited 4+6 F-Digit '2'
01971 27xxxx Telecom2 Ltd 4+6 F-Digit '6'
01971 28xxxx InTechnology Plc 4+6 F-Digit '2'
01971 29xxxx Timico Limited 4+6 F-Digit '8'
01971 30xxxx Telswitch Limited 4+6 F-Digit '0'
01971 31xxxx Voxbone SA 4+6 F-Digit '8'
01971 32xxxx Starcomm Ltd 4+6 F-Digit '0'
01971 33xxxx Known Future Limited 4+6 F-Digit '0'
01971 34xxxx 3C Limited 4+6 F-Digit '2'
01971 35xxxx Solutios Limited 4+6 F-Digit '2'
01971 36xxxx Instant Telecommunications Ltd 4+6 F-Digit '0'
01971 37xxxx O-Bit Telecom Limited 4+6 F-Digit '7'
01971 38xxxx Mars Communications Limited 4+6 F-Digit '0'
01971 39xxxx IPV6 Limited 4+6 F-Digit '0'
01971 40xxxx Telecoms World Plc 4+6 F-Digit '0'
01971 41xxxx Mundio Mobile Limited 4+6 F-Digit '6'
01971 42xxxx CFL Communications Limited 4+6 F-Digit '0'
01971 43xxxx Resilient Networks Plc 4+6 F-Digit '9'
01971 44xxxx Danemere Street Creative 4+6 F-Digit '2'
01971 45xxxx Known Communications Limited 4+6 F-Digit '0'
01971 46xxxx Nexus Telecommunications plc 4+6 F-Digit '0'
01971 500xxx NSLMR BT, Lochmore (Highland) 4+6
01971 502xxx NSSCO BT, Scourie (Highland) 4+6
01971 50xxxx BT 4+6
01971 51xxxx BT 4+6
01971 51xxxx NSDNS BT, Durness (Highland) 4+6
01971 52xxxx BT 4+6
01971 52xxxx NSKLB BT, Kinlochbervie (Highland) 4+6
01971 53xxxx Virgin Media Limited 4+6 F-Digit '4,5'
01971 54xxxx Edge Telecom Ltd 4+6
01971 55xxxx Magrathea Telecommunications Limited 4+6
01971 56xxxx Orange Home UK Plc 4+6 F-Digit '0'
01971 57xxxx C3 Europe Limited 4+6 F-Digit '6'
01971 58xxxx LogicStar Limited 4+6
01971 59xxxx T.T.N.C. Limited 4+6 F-Digit '0,1,2,3,4,5,6,7,8,9'
01971 90xxxx Inclarity plc 4+6 F-Digit '2'
01971 91xxxx Gamma Telecom Holdings Ltd 4+6
01971 92xxxx Syntec UK Ltd 4+6
01971 93xxxx TelNG Limited 4+6 F-Digit '2'
01971 94xxxx Skycom Ltd 4+6 F-Digit '2'
01971 95xxxx Spitfire Network Services Ltd 4+6 F-Digit '7'
01971 96xxxx Localphone Limited 4+6 F-Digit '0'
01971 97xxxx Net Solutions Europe Limited 4+6
01971 98xxxx FleXtel Limited 4+6