The first digit indicates the type of number:
- 2 - Fixed
- 6, 7 - Mobile
- 1 - For future use in the Metropolitan area.
- 2 & 5 - Used for identifying the fixed telephony service in any locality within the Metropolitan area known as “Gran San Salvadorâ€.
- 3 - Used for identifying the fixed telephony service in any locality within the Central area.
- 4 - Used for identifying the fixed telephony service in any locality within the Western area.
- 6 - Used for identifying the fixed telephony service in any locality within the Eastern area.
- 7 - For future use in the Eastern area.
- 8 - For future use in the Western area.
- 9 - For future use in the Central area.