Area code 909 — California

Area code 909 is in California and serves Pomona, Chino Hills, Claremont, Chino. Time zone, overlays, counties and ZIP codes.

LocationCalifornia (southwestern San Bernardino County and a small portion of Los Angeles and Riverside Counties, including Fontana, Pomona, Chino Hills, Claremont, Chino, Ontario, and Redlands)
Main placesPomona, Chino Hills, Claremont, Chino, Ontario, Redlands
StateCalifornia
StatusIn service · since 1992
Time zonePacific ·
Overlay codes840
Overlays share the same area. Local calls usually need 10-digit dialing.
Local dialing1+10D

History

Counties (approximate)

ImperialLos AngelesLos Angeles CountyOrangeOrange CountyRiverside CountySan BernardinoSan Bernardino County

ZIP codes in area code 909

Approximate: area code boundaries follow telephone rate centers, not ZIP codes.

91701 Rancho Cucamonga91702 Azusa91708 Chino91709 Chino Hills91710 Chino91711 Claremont91724 Covina91729 Rancho Cucamonga91730 Rancho Cucamonga91737 Rancho Cucamonga91739 Rancho Cucamonga91740 Glendora91741 Glendora91743 Guasti91750 La Verne91752 Mira Loma91758 Ontario91759 Mount Baldy91761 Ontario91762 Ontario91763 Montclair91764 Ontario91765 Diamond Bar91766 Pomona91767 Pomona91768 Pomona91769 Pomona91773 San Dimas91784 Upland91785 Upland91786 Upland91788 Walnut91789 Walnut92223 Beaumont92252 Joshua Tree92256 Morongo Valley92268 Pioneertown92278 Twentynine Palms92284 Yucca Valley92285 Landers

Format a 909 number

US numbers are written as (909) 555-0123 or 909-555-0123. From outside the US, dial +1 909 555 0123.

Is a call from 909 a scam?

An area code only tells you where a number was assigned. Caller ID can be faked (“spoofed”), so do not trust a call just because the area code looks local. Never share codes or payment details with unexpected callers.

Sources: NANPA via NumberResearch.org (CC BY 4.0); place names and history from Wikipedia (CC BY-SA 4.0). See data sources.