909 area code
Ontario area, Pacific Time.Area code 909 covers Ontario, San Bernardino, Fontana and 18 more places in California, on Pacific Time. 840 covers the same area.
Right now in Ontario
Pacific Time (PST, UTC-8; PDT, UTC-7 in summer)
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
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Where 909 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 909 has 21. Each one's share is how many 909 numbers start there. Its biggest metro area is Riverside-San Bernardino-Ontario, CA.
- Ontario16%
- San Bernardino11%
- Fontana9%
- Upland9%
- Chino7%
- Pomona7%
- Claremont6%
- Colton6%
- Redlands5%
- Rialto4%
- Diamond Bar4%
- Highland3%
Also: Marshall, Arrowhead, Calimesa, Mentone, Etiwanda, Big Bear Lake, Big Bear City, Crestline, Running Springs
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 909 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 909 number to them, since you can't tell a work line from a personal cell.
What applies to 909Every day, 8 AM to 9 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
909 and 840
909 went into service on November 14, 1992, split off from 714, and 951 was later split off from it. 909 and 840 cover the same area, so new numbers can get either code and neighbors can have different area codes. 909 holds 86% of the area's exchanges; 840 holds the rest. Local calls take all 10 digits.
- 1992909 starts
- 2004951 split off
- 2021840 overlay
Source: NANPA area code database
Other California area codes
All California area codes- Stockton209350
- Los Angeles213323738
- Sacramento279916
- Compton310424
- Oakland341510
- Fresno357559
- Santa Rosa369707
- San Jose408669
- San Francisco415628
- Oceanside442760
- Chico530837
- Long Beach562
- San Diego619858
- Alhambra626
- Palo Alto650
- Anaheim657714
- Bakersfield661
- Van Nuys747818
- Santa Barbara805820
- Salinas831
- Walnut Creek925
- Irvine949
- Riverside951
Calling a list of 909 numbers?
Paste it into the free phone number validator. It checks every number, finds each one's time zone and sorts the list by who you can call right now.
909 area code FAQ
What area code is 909?
909 is a California area code for Ontario, San Bernardino, Fontana, Upland and 17 more places.
What time zone is the 909 area code in?
Pacific Time (PST, UTC-8; PDT, UTC-7 in summer).
Is 840 the same as 909?
Same area, different code. 909 and 840 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 909 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 909 area code start?
On November 14, 1992. It was split from 714.
Calling 909 numbers? Reach more of them.
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