Altadena, California

Altadena, California, in Los Angeles County, has ZIP codes 91001 and 91003 and area code 818, with 747 as an overlay.

ZIP codes: 91001, 91003
Area codes: 818, 747
County: Los Angeles County
State: California
Time zone: Pacific Time
Coordinates: 34.1904, -118.1352

ZIP codes in Altadena

ZIP code	Post office	County	Area codes
91001	Altadena	Los Angeles County	818, 747
91003^*	Altadena	Los Angeles County	818, 747

* No mapped delivery area: P.O. boxes or a single organization. Area codes are those of the nearest ZIP code area.

Area codes for Altadena

Area code 818
In service since January 7, 1984. Shares its area with 747. Local calls are dialed with 1 plus ten digits.
Area code 747
In service since May 18, 2009. Shares its area with 818. Local calls are dialed with 1 plus ten digits.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Time zone

Altadena is in the Pacific Time zone.

Towns near Altadena

Pasadena4.7 km (2.9 mi)
La Canada Flintridge6.1 km (3.8 mi)
San Pasqual6.4 km (4.0 mi)
Mount Wilson7.5 km (4.7 mi)
East Pasadena8 km (5.0 mi)
San Marino8.1 km (5.0 mi)
Sierra Madre8.2 km (5.1 mi)
South Pasadena8.7 km (5.4 mi)

Local numbers in area code 818

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