ATC Control Centre Frequencies Amplitude Modulation Shanwick Oceanic VHF MHz 123.950 Oceanic 127.650 Oceanic 135.525 Oceanic 127.900 Shanwick Radio 133.800 Track information Shanwick Oceanic HF KHz 2872 2899 2971 3016 3476 4675 5598 5616 5649 6622 8831 8864 8879 8891 8906 11279 11336 13291 13306 17946 Scottish Control VHF 119.875 123.375 123.775 125.675 126.100 126.250 126.850 127.275 129.225 131.300 133.675 134.100 134.775 135.850 Pole Hill Sector VHF MHz 129.100 136.200 Barton 128.050 Irish sea 126.875 Standby North Sea Sector VHF MHz 126.775 Beeno 128.125 OTR 133.525 Standby Bristol Sectr VHF MHz 132.800 129.375 Strumble 133.600 Brecon Daventry Sector VHF MHz 120.475 Standby 127.100 North 1 127.875 North 2 129.200 Bovingdon 131.125 South Clacton Sector VHF MHz 118.475 West 2 133.450 East 133.525 S/B 136.550 West 1 Berry Head Sector VHF MHz 126.075 Primary 127.700 Standby 132.950 West 135.250 Cardiff/SW Worthing Sector VHF MHz 120.025 Hurn West 135.050 Hurn East 135.325 Seaford 136.600 Standby Dover Sector VHF MHz 128.425 Lydd East 134.450 Standby 134.900 London Sector VHF MHz 120.475 Middle Sector Standby 127.475 Upper Sector East 132.450 Middle Sector West 132.600 Middle Sector East 134.450 Middle Sector / Upper Sector Standby 135.425 Upper Sector West 136.600 Upper Sector Standby