United Kingdom

Number Code Allocated To Number Length Notes
01583 20xxxx Timico Limited 4+6 F-Digit '8'
01583 21xxxx Telswitch Limited 4+6 F-Digit '0'
01583 22xxxx Net-Work Internet Ltd 4+6 F-Digit '2'
01583 23xxxx Starcomm Ltd 4+6 F-Digit '0'
01583 24xxxx Voxbone SA 4+6 F-Digit '8'
01583 25xxxx 3C Limited 4+6 F-Digit '2'
01583 26xxxx Solutios Limited 4+6 F-Digit '2'
01583 27xxxx Known Future Limited 4+6 F-Digit '5'
01583 28xxxx Mars Communications Limited 4+6 F-Digit '0'
01583 29xxxx IPV6 Limited 4+6 F-Digit '0'
01583 30xxxx Instant Telecommunications Ltd 4+6 F-Digit '0'
01583 31xxxx Nexus Telecommunications plc 4+6 F-Digit '0'
01583 32xxxx Mundio Mobile Limited 4+6 F-Digit '6'
01583 33xxxx CFL Communications Limited 4+6 F-Digit '0'
01583 35xxxx Danemere Street Creative 4+6 F-Digit '2'
01583 40xxxx Magrathea Telecommunications Limited 4+6
01583 41xxxx LogicStar Limited 4+6
01583 42xxxx BT 4+6
01583 42xxxx WSGLE BT, Glenbarr (Argyll & Bute) 4+6
01583 43xxxx BT 4+6
01583 43xxxx WSCAD BT, Carradale (Strathclyde) 4+6
01583 44xxxx BT 4+6
01583 44xxxx WSTAY BT, Tayinloan (Argyll & Bute) 4+6
01583 45xxxx Edge Telecom Ltd 4+6
01583 46xxxx Gamma Telecom Holdings Ltd 4+6
01583 47xxxx Syntec UK Ltd 4+6
01583 48xxxx FleXtel Limited 4+6
01583 49xxxx Virgin Media Limited 4+6 F-Digit '4,5'
01583 50xxxx BT 4+6
01583 50xxxx WSGIG BT, Gigha (Argyll & Bute) 4+6
01583 51xxxx Inclarity plc 4+6 F-Digit '2'
01583 52xxxx TelNG Limited 4+6 F-Digit '2'
01583 53xxxx T.T.N.C. Limited 4+6 F-Digit '0,1,2,3,4,5,6,7,8,9'
01583 54xxxx Teledesign plc 4+6 F-Digit '2'
01583 55xxxx Skycom Ltd 4+6 F-Digit '2'
01583 56xxxx Frontier Systems Ltd 4+6 F-Digit '3'
01583 57xxxx Spitfire Network Services Ltd 4+6 F-Digit '7'
01583 58xxxx Localphone Limited 4+6 F-Digit '0'
01583 59xxxx VoIP-Un Limited 4+6 F-Digit '0'
01583 60xxxx Orange Home UK Plc 4+6 F-Digit '0'
01583 61xxxx Telephony Services Limited 4+6 F-Digit '2'
01583 62xxxx O-Bit Telecom Limited 4+6 F-Digit '7'
01583 63xxxx C3 Europe Limited 4+6 F-Digit '3'
01583 64xxxx Coralbridge Ltd 4+6 F-Digit '0'
01583 65xxxx Opal Telecom Limited 4+6 F-Digit '8'
01583 66xxxx Net Solutions Europe Limited 4+6 F-Digit '6'
01583 67xxxx InTechnology Plc 4+6 F-Digit '2'
01583 68xxxx Telecom2 Ltd 4+6 F-Digit '6'
01583 69xxxx Nationwide Telephone Assistance Ltd 4+6 F-Digit '0'