British Telecom Northern Ireland is listed in:
 Radio Telephone Services
 Radio Telephone Services in County Antrim
 Radio Telephone Services in Belfast

Electratech Services is listed in:
 Radio Telephone Services
 Radio Telephone Services in Hampshire
 Radio Telephone Services in Southampton

Fibernet U K Ltd is listed in:
 Radio Telephone Services
 Radio Telephone Services in Greater London
 Radio Telephone Services in London

Phone Co Op Ltd is listed in:
 Radio Telephone Services
 Radio Telephone Services in Oxfordshire
 Radio Telephone Services in Chipping Norton

Torch Telecom (Milton Keynes) is listed in:
 Radio Telephone Services
 Radio Telephone Services in Buckinghamshire
 Radio Telephone Services in Milton Keynes

Radio Services Inc is listed in:
 Radio Telephone Services
 Radio Telephone Services in Cambridgeshire
 Radio Telephone Services in Huntingdon

Manx Carephone and Monitoring Services Ltd is listed in:
 Radio Telephone Services
 Radio Telephone Services in Isle Of Man
 Radio Telephone Services in Douglas

Orange Personal Communications Services Orange is listed in:
 Radio Telephone Services
 Radio Telephone Services in West Midlands
 Radio Telephone Services in Birmingham

X On Storacall is listed in:
 Radio Telephone Services
 Radio Telephone Services in Suffolk
 Radio Telephone Services in Woodbridge

Powernet Telecom Plc is listed in:
 Radio Telephone Services
 Radio Telephone Services in Lancashire
 Radio Telephone Services in Manchester