United Kingdom

Number Code Allocated To Number Length Notes
01833 20xxxx Telephony Services Limited 4+6 F-Digit '2'
01833 21xxxx Global Crossing (UK) Ltd 4+6 F-Digit '3'
01833 22xxxx Net-Work Internet Ltd 4+6 F-Digit '2'
01833 23xxxx InTechnology Plc 4+6 F-Digit '2'
01833 24xxxx Telecom2 Ltd 4+6 F-Digit '6'
01833 25xxxx Timico Limited 4+6 F-Digit '8'
01833 26xxxx Telswitch Limited 4+6 F-Digit '0'
01833 27xxxx Starcomm Ltd 4+6 F-Digit '0'
01833 28xxxx Voxbone SA 4+6 F-Digit '8'
01833 29xxxx Known Future Limited 4+6 F-Digit '8'
01833 30xxxx TELSTRA EUROPE LIMITED 4+6
01833 31xxxx LogicStar Limited 4+6
01833 32xxxx FleXtel Limited 4+6
01833 33xxxx Affiniti Integrated Solutions Ltd 4+6
01833 34xxxx Magrathea Telecommunications Limited 4+6
01833 3540xx NEBC BT, Barnard Castle (Durham) 4+6
01833 3548xx NEMTD BT, Middleton In Teesdale (Durham) 4+6
01833 3549xx NEBC BT, Barnard Castle (Durham) 4+6
01833 35xxxx BT 4+6
01833 36xxxx C3 Europe Limited 4+6 F-Digit '6'
01833 37xxxx Virgin Media Limited 4+6
01833 38xxxx Edge Telecom Ltd 4+6
01833 39xxxx Freshtel UK Limited 4+6 F-Digit '7'
01833 40xxxx Solutios Limited 4+6 F-Digit '2'
01833 41xxxx Mars Communications Limited 4+6 F-Digit '0'
01833 42xxxx 3C Limited 4+6 F-Digit '2'
01833 43xxxx IPV6 Limited 4+6 F-Digit '0'
01833 44xxxx Instant Telecommunications Ltd 4+6 F-Digit '0'
01833 45xxxx Telecoms World Plc 4+6 F-Digit '0'
01833 46xxxx CFL Communications Limited 4+6 F-Digit '0'
01833 47xxxx Mundio Mobile Limited 4+6 F-Digit '6'
01833 48xxxx Known Communications Limited 4+6 F-Digit '0'
01833 49xxxx Nexus Telecommunications plc 4+6 F-Digit '0'
01833 50xxxx Danemere Street Creative 4+6 F-Digit '2'
01833 60xxxx Gamma Telecom Holdings Ltd 4+6
01833 61xxxx Orange Home UK Plc 4+6 F-Digit '0'
01833 621xxx NEBHM BT, Barningham (Durham) 4+6
01833 622xxx NEFT BT, Forest In Teesdale (Durham) 4+6
01833 626xxx NEWOR BT, Whorlton (Durham) 4+6
01833 628xxx NEBWS BT, Bowes (Durham) 4+6
01833 62xxxx BT 4+6
01833 63xxxx BT 4+6
01833 63xxxx NEBC BT, Barnard Castle (Durham) 4+6
01833 64xxxx BT 4+6
01833 64xxxx NEMTD BT, Middleton In Teesdale (Durham) 4+6
01833 65xxxx BT 4+6
01833 65xxxx NECSN BT, Cotherstone (Durham) 4+6
01833 66xxxx BT 4+6
01833 66xxxx NESDP BT, Staindrop (Durham) 4+6
01833 67xxxx Syntec UK Ltd 4+6
01833 68xxxx Cable & Wireless UK 4+6
01833 69xxxx BT 4+6
01833 69xxxx NEBC BT, Barnard Castle (Durham) 4+6
01833 80xxxx TelNG Limited 4+6 F-Digit '2'
01833 81xxxx Net Solutions Europe Limited 4+6 F-Digit '1'
01833 82xxxx Inclarity plc 4+6 F-Digit '2'
01833 83xxxx T.T.N.C. Limited 4+6 F-Digit '0,1,2,3,4,5,6,7,8,9'
01833 84xxxx Localphone Limited 4+6 F-Digit '0'
01833 85xxxx Coralbridge Ltd 4+6 F-Digit '0'
01833 86xxxx Frontier Systems Ltd 4+6 F-Digit '3'
01833 87xxxx Spitfire Network Services Ltd 4+6 F-Digit '7'
01833 88xxxx Nationwide Telephone Assistance Ltd 4+6 F-Digit '0'
01833 89xxxx Skycom Ltd 4+6 F-Digit '2'
01833 90xxxx Opal Telecom Limited 4+6 F-Digit '8'
01833 91xxxx VoIP-Un Limited 4+6 F-Digit '0'
01833 92xxxx Teledesign plc 4+6 F-Digit '2'