United Kingdom

Number Code Allocated To Number Length Notes
01451 20xxxx Orange Home UK Plc 4+6 F-Digit '0'
01451 21xxxx TelNG Limited 4+6 F-Digit '2'
01451 22xxxx Localphone Limited 4+6 F-Digit '0'
01451 23xxxx Starcomm Ltd 4+6 F-Digit '0'
01451 24xxxx Teledesign plc 4+6 F-Digit '2'
01451 25xxxx Net-Work Internet Ltd 4+6 F-Digit '0'
01451 26xxxx Frontier Systems Ltd 4+6 F-Digit '3'
01451 27xxxx Coralbridge Ltd 4+6 F-Digit '0'
01451 28xxxx InTechnology Plc 4+6 F-Digit '2'
01451 29xxxx Nationwide Telephone Assistance Ltd 4+6 F-Digit '0'
01451 30xxxx VoIP-Un Limited 4+6 F-Digit '0'
01451 31xxxx Entanet International Ltd 4+6 F-Digit '0'
01451 32xxxx Timico Limited 4+6 F-Digit '8'
01451 33xxxx O-Bit Telecom Limited 4+6 F-Digit '7'
01451 34xxxx Telecom2 Ltd 4+6 F-Digit '6'
01451 35xxxx Telswitch Limited 4+6 F-Digit '0'
01451 36xxxx 3C Limited 4+6 F-Digit '2'
01451 37xxxx Voxbone SA 4+6 F-Digit '8'
01451 38xxxx Solutios Limited 4+6 F-Digit '2'
01451 39xxxx Mars Communications Limited 4+6 F-Digit '0'
01451 40xxxx IPV6 Limited 4+6 F-Digit '0'
01451 41xxxx Instant Telecommunications Ltd 4+6 F-Digit '0'
01451 42xxxx Telecoms World Plc 4+6 F-Digit '0'
01451 43xxxx Nexus Telecommunications plc 4+6 F-Digit '0'
01451 44xxxx Switch Services Ltd 4+6 F-Digit '0'
01451 45xxxx Mundio Mobile Limited 4+6 F-Digit '6'
01451 46xxxx CFL Communications Limited 4+6 F-Digit '0'
01451 47xxxx Known Communications Limited 4+6 F-Digit '0'
01451 48xxxx INET Telecoms Ltd (Voipfone) 4+6 F-Digit '7'
01451 60xxxx Gamma Telecom Holdings Ltd 4+6
01451 61xxxx Telephony Services Limited 4+6
01451 62xxxx Syntec UK Ltd 4+6
01451 63xxxx LogicStar Limited 4+6
01451 64xxxx C3 Europe Limited 4+6 F-Digit '1'
01451 65xxxx Cable and Wireless (Energis) 4+6
01451 66xxxx Inclarity plc 4+6
01451 67xxxx Edge Telecom Ltd 4+6
01451 68xxxx FleXtel Limited 4+6
01451 69xxxx Danemere Street Creative 4+6
01451 70xxxx TELSTRA EUROPE LIMITED 4+6
01451 71xxxx Freshtel UK Limited 4+6 F-Digit '0'
01451 72xxxx Skycom Ltd 4+6 F-Digit '2'
01451 73xxxx VTL (UK) Limited 4+6 F-Digit '5'
01451 74xxxx Known Future Limited 4+6 F-Digit '4'
01451 75xxxx Virgin Media Limited 4+6 F-Digit '4,5'
01451 76xxxx Spitfire Network Services Ltd 4+6 F-Digit '7'
01451 77xxxx Net Solutions Europe Limited 4+6 F-Digit '7'
01451 78xxxx T.T.N.C. Limited 4+6 F-Digit '0-9'
01451 79xxxx Opal Telecom Limited 4+6 F-Digit '8'
01451 80xxxx BT 4+6
01451 80xxxx SSSWD BT, Stow On the Wold (Gloucestershire) 4+6
01451 81xxxx BT 4+6
01451 81xxxx SSBOW BT, Bourton On the Water (Gloucestershire) 4+6
01451 82xxxx BT 4+6
01451 82xxxx SSBOW BT, Bourton On the Water (Gloucestershire) 4+6
01451 83xxxx BT 4+6
01451 83xxxx SSSWD BT, Stow On the Wold (Gloucestershire) 4+6
01451 84xxxx BT 4+6
01451 84xxxx SSWRH BT, Windrush (Gloucestershire) 4+6
01451 85xxxx BT 4+6
01451 85xxxx SSGPR BT, Guiting Power (Gloucestershire) 4+6
01451 86xxxx BT 4+6
01451 86xxxx SSNLH BT, Northleach (Gloucestershire) 4+6
01451 87xxxx BT 4+6
01451 87xxxx SSSWD BT, Stow On the Wold (Gloucestershire) 4+6
01451 88xxxx Magrathea Telecommunications Limited 4+6
01451 89xxxx Cable & Wireless UK 4+6