S Digit 1/2 List, SA=12
national numbers starting 120
(SAB=120)
national numbers starting 121
(SAB=121) Birmingham National dialling, Birmingham, Birmingham expansion
national numbers starting 122
(SAB=122)
national numbers starting 123
(SAB=123)
national numbers starting 124
(SAB=124)
national numbers starting 125
(SAB=125)
national numbers starting 126
(SAB=126)
national numbers starting 127
(SAB=127)
national numbers starting 128
(SAB=128)
national numbers starting 129
(SAB=129)