United Kingdom

Number Code Allocated To Number Length Notes
01668 20xxxx BT 4+6
01668 20xxxx NEWO BT, Wooler (Northumberland) 4+6
01668 210xxx NEBED BT, Belford (Northumberland) 4+6
01668 213xxx NEBED BT, Belford (Northumberland) 4+6
01668 214xxx NEBU BT, Bamburgh (Northumberland) 4+6
01668 215xxx NECTN BT, Chatton (Northumberland) 4+6
01668 216xxx NEMIL BT, Milfield (Northumberland) 4+6
01668 217xxx NEWOP BT, Wooperton (Northumberland) 4+6
01668 219xxx NEBED BT, Belford (Northumberland) 4+6
01668 21xxxx BT 4+6
01668 22xxxx Magrathea Telecommunications Limited 4+6
01668 23xxxx LogicStar Limited 4+6
01668 24xxxx Edge Telecom Ltd 4+6
01668 25xxxx TelNG Limited 4+6 F-Digit '2'
01668 26xxxx Gamma Telecom Holdings Ltd 4+6
01668 27xxxx Syntec UK Ltd 4+6
01668 28xxxx BT 4+6
01668 28xxxx NEWO BT, Wooler (Northumberland) 4+6
01668 29xxxx FleXtel Limited 4+6
01668 30xxxx Timico Limited 4+6 F-Digit '8'
01668 31xxxx Telswitch Limited 4+6 F-Digit '0'
01668 32xxxx Voxbone SA 4+6 F-Digit '8'
01668 33xxxx Net-Work Internet Ltd 4+6 F-Digit '3'
01668 34xxxx Starcomm Ltd 4+6 F-Digit '0'
01668 35xxxx 3C Limited 4+6 F-Digit '2'
01668 36xxxx Skycom Ltd 4+6 F-Digit '2'
01668 37xxxx Solutios Limited 4+6
01668 38xxxx Known Future Limited 4+6 F-Digit '0'
01668 39xxxx Mars Communications Limited 4+6 F-Digit '0'
01668 40xxxx IPV6 Limited 4+6 F-Digit '0'
01668 41xxxx Telecoms World Direct Ltd 4+6 F-Digit '0'
01668 42xxxx Instant Telecommunications Ltd 4+6 F-Digit '0'
01668 43xxxx Mundio Mobile Limited 4+6 F-Digit '6'
01668 44xxxx CFL Communications Limited 4+6 F-Digit '0'
01668 45xxxx Known Communications Limited 4+6 F-Digit '0'
01668 46xxxx Danemere Street Creative 4+6 F-Digit '2'
01668 47xxxx Nexus Telecommunications plc 4+6 F-Digit '0'
01668 60xxxx Orange Home UK Plc 4+6 F-Digit '0'
01668 61xxxx Virgin Media Limited 4+6
01668 62xxxx Frontier Systems Ltd 4+6 F-Digit '3'
01668 63xxxx Opal Telecom Limited 4+6 F-Digit '8'
01668 64xxxx Teledesign plc 4+6 F-Digit '2'
01668 65xxxx Coralbridge Ltd 4+6 F-Digit '0'
01668 66xxxx Localphone Limited 4+6 F-Digit '0'
01668 67xxxx Spitfire Network Services Ltd 4+6 F-Digit '7'
01668 68xxxx Cable and Wireless (Energis) 4+6
01668 69xxxx T.T.N.C. Limited 4+6 F-Digit '1,2,3,4,5,6,7,8,9'
01668 90xxxx Freshtel UK Limited 4+6 F-Digit '7'
01668 91xxxx Inclarity plc 4+6
01668 92xxxx VoIP-Un Limited 4+6 F-Digit '0'
01668 93xxxx Telephony Services Limited 4+6 F-Digit '2'
01668 94xxxx O-Bit Telecom Limited 4+6 F-Digit '7'
01668 95xxxx Telecom2 Ltd 4+6 F-Digit '6'
01668 96xxxx InTechnology Plc 4+6 F-Digit '2'
01668 97xxxx Nationwide Telephone Assistance Ltd 4+6 F-Digit '0'
01668 98xxxx Net Solutions Europe Limited 4+6 F-Digit '8'