S Digit 1/2 List, SA=28 028
national numbers starting 280
(SAB=280) 028 National Dialling expansion
national numbers starting 281
(SAB=281) Nothern Ireland National Dialling, 028 National Dialling expansion
national numbers starting 282
(SAB=282) 028
national numbers starting 283
(SAB=283) 028
national numbers starting 284
(SAB=284) 028
national numbers starting 285
(SAB=285) 028
national numbers starting 286
(SAB=286) 028
national numbers starting 287
(SAB=287) 028
national numbers starting 288
(SAB=288) 028
national numbers starting 289
(SAB=289) 028