Area Code 909: Inland Empire Numbers and Callers
Your 909 number, with +1 in front
909 numbers in the Inland Empire
Complaints about area code 909 come from many different numbers, so the code alone tells you little. The exact number tells you more.
Where is area code 909?
Area code 909 is the western Inland Empire: Ontario, San Bernardino, Fontana, Upland, Chino, Pomona, Claremont, Colton, Redlands and Rialto, plus mountain towns such as Big Bear. Its exchanges are spread over 25 rate centers and no single city dominates. New local lines may also carry 840.
| Location | the Inland Empire, California (San Bernardino and eastern Los Angeles County) |
|---|---|
| State | California |
| Time zone | Pacific Time (PT) |
| Origin | Created in 1992 |
| Shares its area with | 840 |
| Exchanges assigned | 786 |
| Local rate centers | 25 |
| Carriers holding exchanges | 38 |
The western Inland Empire
909 covers parts of two counties: the San Bernardino Valley in San Bernardino County and the Pomona Valley in eastern Los Angeles County. It is warehouse and logistics country around Ontario International Airport, with college towns such as Claremont and Redlands and mountain resorts around Big Bear Lake. Exchanges are spread over 25 rate centers.
Where 909 exchanges are
| Place (rate center) | Exchanges |
|---|---|
| Ontario | 124 |
| San Bernardino | 88 |
| Fontana | 70 |
| Upland | 70 |
| Chino | 55 |
| Pomona | 51 |
| Claremont | 50 |
| Colton | 45 |
How many people report 909 calls
909 complaints are spread out: no 909 number has more than 7 complaints in our data, so they come from many different numbers rather than a few heavy users. In the FTC reports, debt relief is the top specific topic (315 reports). California residents are behind 56% of the FCC complaints.
909 FCC complaints by year
*2026-10-21
909 complaints month by month
| Dec 25 | Jan 26 | Feb 26 | Mar 26 | Apr 26 | May 26 | Jun 26 | Jul 26 | Aug 26 | Sep 26 | Oct 26 |
|---|---|---|---|---|---|---|---|---|---|---|
| 11 | 20 | 6 | 10 | 4 | 7 | 11 | 12 | 14 | 17 | 11 |
909 call types, Oct 2025–Oct 2026
- Live caller: 67 (54%)
- Recorded message (robocall): 39 (32%)
- Text message: 17 (14%)
Top 909 FTC topics
- Debt relief offers: 315
- Dropped calls with no message: 214
- Impostors (government, business or family): 181
Which companies own 909 exchanges
- Frontier (landline): 156 exchanges (20%)
- T-Mobile: 87 exchanges (11%)
- AT&T Mobility: 75 exchanges (10%)
- Verizon Wireless: 72 exchanges (9%)
Frontier California holds the largest share of the landline exchanges, and T-Mobile, AT&T Mobility and Verizon Wireless split most of the mobile ones. Any single 909 number may have been ported since.
What to do about a 909 call
To see who called you from 909, use the full 909 phone number. Complaints in the 909 area code are scattered over many numbers, so the code alone tells you little.
If you live in the Inland Empire, both the FTC (reportfraud.ftc.gov) and the California Attorney General accept your complaint; texts go to 7726.
Frequently asked questions
Where is area code 909?
The western Inland Empire on Pacific Time: San Bernardino, Ontario, Fontana, Upland, Chino, Pomona and nearby cities, plus 840 for some new lines.
Is 909 known for robocalls?
No. Complaints about 909 numbers are spread thin: no single number has more than 7. In total we hold 664 FCC complaints (place 127 of 714) and 1,941 FTC reports, with debt relief as the most common topic.
Which cities use the 909 area code?
San Bernardino, Ontario, Fontana, Rancho Cucamonga, Upland, Chino, Pomona, Claremont, Redlands, Rialto and other cities in the western Inland Empire, plus mountain communities such as Big Bear and Lake Arrowhead.
What is the 840 area code?
840 is the relief code for the 909 region, assigned in the very same exchanges. An 840 number is just as local to the Inland Empire as a 909 one.
A 909 number called about consolidating my debt. Should I trust it?
When people tell the FTC what a 909 caller wanted, debt relief comes up more than any other named subject. Never pay upfront fees and check any company with your state’s attorney general before you share account details.
Is 909 Los Angeles?
No. 909 starts east of Los Angeles, in the Pomona Valley, and continues into San Bernardino County. Los Angeles itself uses 213, 323, 310 and other codes.
Is Riverside in the 909 area code?
Not anymore. Riverside and western Riverside County moved to 951 in 2004. 909 stayed with San Bernardino and the eastern Los Angeles County cities.
More checks after a 909 call
Related use cases