+503-2-(3030000...3030999): Cojutepeque (Central zone) Baca lebih lanjut mengenai +503-2-(3030000...3030999)
+503-2-(3200000...3200999): Cojutepeque (Central zone) Baca lebih lanjut mengenai +503-2-(3200000...3200999)
+503-2-(3369000...3369999): Cojutepeque (Central zone) Baca lebih lanjut mengenai +503-2-(3369000...3369999)
+503-2-(3710000...3710999): Cojutepeque (Central zone) Baca lebih lanjut mengenai +503-2-(3710000...3710999)
+503-2-(3810000...3810999): Cojutepeque (Central zone) Baca lebih lanjut mengenai +503-2-(3810000...3810999)
+503-2-(3910000...3910999): Cojutepeque (Central zone) Baca lebih lanjut mengenai +503-2-(3910000...3910999)
+503-2-(6020000...6020999): San Miguel (Eastern zone) Baca lebih lanjut mengenai +503-2-(6020000...6020999)
+503-2-(6210000...6210999): San Miguel (Eastern zone) Baca lebih lanjut mengenai +503-2-(6210000...6210999)
+503-2-(6530000...6530999): San Miguel (Eastern zone) Baca lebih lanjut mengenai +503-2-(6530000...6530999)
+503-2-(6660000...6660999): San Miguel (Eastern zone) Baca lebih lanjut mengenai +503-2-(6660000...6660999)
