+503-2-(1100000...1104999): San Salvador (Metropolitan zone) Baca lebih lanjut mengenai +503-2-(1100000...1104999)
+503-2-(4900000...4904999): Santa Ana (Western zone) Baca lebih lanjut mengenai +503-2-(4900000...4904999)
+503-2-(6900000...6904999): San Miguel (Eastern zone) Baca lebih lanjut mengenai +503-2-(6900000...6904999)
