+503-2-(3362000...3362999): Cojutepeque (Central zone) Baca lebih lanjut mengenai +503-2-(3362000...3362999)
+503-2-(4385000...4385999): Santa Ana (Western zone) Baca lebih lanjut mengenai +503-2-(4385000...4385999)
+503-2-(5185000...5185999): San Salvador (Metropolitan zone) Baca lebih lanjut mengenai +503-2-(5185000...5185999)
+503-2-(6402000...6402999): San Miguel (Eastern zone) Baca lebih lanjut mengenai +503-2-(6402000...6402999)
