ðə mˈeɪn fˈɔːɹmɚ nˈɛtwɜːk sˈaʊθ ˈiːst "sˈʌbsˈɛktɚz" ðæt kˈeɪm ˌʌndɚ ðə dʒˌʊɹɹɪsdˈɪkʃən ʌv ˌɛnˌɛssˈiː wɜː ðə sˈʌsɪks kˈoʊst, ˈɑːkstᵻd, sˈaʊθ lˈʌndən ænd mˈɑːɹʃlɪŋk lˈaɪnz.
The main former Network SouthEast "sub-sectors" that came under the jurisdiction of NSC were the Sussex Coast, Oxted, South London and Marshlink lines.