• Call Prevention Registry UK Ltd
  1 York Street, SWANSEA, West Glamorgan, SA1 3LZ
• Clear Connect Ltd
  P Obox 143, SWANSEA, West Glamorgan, SA2 0WT
• Direct Line Mobiles
  Unit 15, Church Road Industrial Estate, Gorslas, LLANELLI, Dyfed, SA14 7NN
• Jag Communications Plymouth Ltd
  St Elli Centre, LLANELLI, Dyfed, SA15 1SH
• Konnect Communications Ltd
  2 Cambrian Court, Enterprise Park, Swansea Enterprise Park, SWANSEA, West Glamorgan, SA6 8PZ
• Leycom Network Services Ltd
  Cambrian Complex, Ystrad Road, Fforestfach, SWANSEA, West Glamorgan, SA5 4HJ
• South Wales Telecom
  Fendrod Way, Swansea Enterprise Park, SWANSEA, West Glamorgan, SA7 9DG