909 Area Code: Ontario, California
Area code 909 serves Ontario, San Bernardino and Fontana, California in the Pacific time zone, in service since 1992. Consumers have filed 5,742 unwanted-call complaints against 4,723 different 909 numbers, 717 of them with the FTC in the last 30 days. Look up the exact number that called you below.
Area code 909 at a glance
- State
- California
- Main cities
- Ontario, San Bernardino, Fontana, Upland, Chino, Pomona + 19 more
- Counties
- San Bernardino County, Los Angeles County, Riverside County
- Local time
- —Pacific
- In service since
- November 14, 1992
- Split from
- 714
- Overlay code
- 840 (2021)
- Codes split off
- 951 (2004)
- Local dialing
- 10 digits (area code + number)
- Exchanges
- 25 rate centers, 786 prefixes
Sources: NANPA area code and central office code records (refreshed weekly); cities and counties matched from US Census Bureau and USGS place names.
Most-reported 909 numbers
Ranked by FTC Do Not Call complaints this month, then all-time FTC and FCC complaints. Only numbers with enough complaints for a full report page are listed. Click one for what it was reported for and where.
What calls from 909 numbers are about
2,312 FTC Do Not Call complaints about 909 numbers since Jul 24. The most common named subject is debt-relief pitches, at 13% of complaints (81% of those were recorded messages). Overall, 52% of callers who answered said the call was a robocall.
FTC complaint subjects
- Other / unspecified1,07246%
- Debt reduction29513%
- Dropped call / no message27812%
- Impostor (government, business, family)26411%
- No subject given1677%
- Home improvement & cleaning1235%
- Medical & prescriptions392%
FCC complaints by call type, last 2 years
- Live Voice15559%
- Prerecorded Voice7629%
- Text Message3313%
13% of recent FCC complaints about 909 numbers are about text messages, not calls.
When 909 spam calls come in
33% of complaints that give a call time describe calls between 10am and 1pm. 90% came Monday to Friday, most on Tuesdays, the pattern of call-center robocall campaigns that run on business hours. Times are as consumers reported them to the FTC.
By hour of the day
By day of the week
Is it getting worse?
698 FTC complaints about 909 numbers in the last four weeks, down 14% on the four weeks before. FCC complaints about 909 numbers peaked in 2015 (508); the FTC's daily Do Not Call data has carried most of the volume since mid-2026.
FTC complaints per week
FCC complaints per year
Years shown as '15 to '26; the current year is partial.
Who gets these calls
73% of the FTC complaints about 909 numbers came from California residents, but only 36% from people with 909 numbers themselves. The calls are mostly regional rather than aimed at 909 phones specifically.
Where complainants live
- California1,69573%
- Florida593%
- Pennsylvania422%
- Arizona412%
- Texas392%
What people with 909 numbers report
People whose own number starts with 909 filed 3,076 FTC complaints since Jul 24. 27% were about calls showing another 909 number. The most common named subject was debt-relief pitches.
Area codes on the calls they reported
- 909 (same code)82427%
- 855 (toll-free)1224%
- 866 (toll-free)1184%
- 888 (toll-free)1154%
- 877 (toll-free)1053%
Likely campaigns using 909 numbers
Groups of numbers that drew the same FTC complaint in the same pattern over the last 60 days. The grouping is statistical and doesn't identify who is calling.
Busiest 909 prefixes this month
FTC complaints in the last 30 days, grouped by the first six digits. When one prefix collects complaints about many different numbers, a campaign is usually cycling through that block. The carrier is who NANPA assigned the prefix to, not who made the calls.
| Prefix | Complaints | Numbers | Carrier | Exchange |
|---|---|---|---|---|
| (909) 925-xxxx | 31 | 31 | Bandwidth.com | Chino |
| (909) 318-xxxx | 26 | 25 | Onvoy (Sinch) | Big Bear Lake |
| (909) 853-xxxx | 23 | 22 | Onvoy (Sinch) | Running Springs |
| (909) 914-xxxx | 20 | 20 | Bandwidth.com | Diamond Bar |
| (909) 805-xxxx | 18 | 17 | T-Mobile USA | Mentone |
Carriers operating in 909
NANPA has assigned 786 909 prefixes (NPA-NXX central-office codes) across 25 rate centers: 41% to wireless carriers, 59% to landline and VoIP operators; 71% are pooled blocks shared by several carriers. The newest assignment was 2025-10-09. The carrier holding a prefix is who the number was issued through. It says nothing about who is calling, since caller ID is routinely spoofed.
| Carrier | Type | Prefixes | Rate centers | Newest assignment |
|---|---|---|---|---|
| Frontier Communications | Incumbent landline (ILEC) | 156(20%) | 17 | 2015-08-06 |
| T-Mobile USA | Wireless | 87(11%) | 16 | 2024-06-21 |
| AT&T Mobility (New Cingular Wireless PCS) | Wireless | 75(10%) | 13 | 2024-08-27 |
| Verizon Wireless (Cellco Partnership) | Wireless | 72(9%) | 12 | 2024-01-29 |
| Metro by T-Mobile (MetroPCS) | Wireless | 52(7%) | 7 | 2018-10-15 |
| Bandwidth.com | Competitive / VoIP (CLEC) | 47(6%) | 19 | 2022-10-17 |
| Pacific Bell (AT&T) | Incumbent landline (ILEC) | 47(6%) | 4 | 2011-01-25 |
| Onvoy (Sinch) | Competitive / VoIP (CLEC) | 34(4%) | 17 | 2025-10-09 |
| U.S. Telepacific CORP. dba Tpx Communications | Competitive / VoIP (CLEC) | 27(3%) | 13 | 2024-04-22 |
| Level 3 (Lumen) | Competitive / VoIP (CLEC) | 26(3%) | 14 | 2019-01-14 |
| Level 3 (Lumen) | Competitive / VoIP (CLEC) | 24(3%) | 19 | 2007-03-13 |
| Spok, INC. | Wireless | 16(2%) | 7 | — |
Largest rate centers (exchanges) by prefixes: Ontario (124), San Bernardino (88), Fontana (70), Upland (70), Chino (55), Pomona (51), Claremont (50), Colton (45), Redlands (38), Rialto (34). Source: NANPA Central Office Code Utilized Assignments (public, refreshed weekly).
What to do about calls from 909 numbers
Before you call back
- Debt reduction is the top named complaint here. Don't pay upfront fees for debt relief; the FTC's Telemarketing Sales Rule bans them. Talk to your lender or a nonprofit credit counselor instead. Read about debt-relief robocalls.
- Look up the full number above. A missed call from 909 with no voicemail is usually a robocall; anyone who needs you will leave a message.
- Block repeat callers: iPhone, Android, or your carrier's free filter (Verizon, AT&T, T-Mobile).
Report it in California
- Unwanted sales calls and robocalls: donotcall.gov (FTC). Scams and fraud: ReportFraud.ftc.gov.
- Spoofing, texts and call-blocking problems: FCC consumer complaints.
- State complaints: California Attorney General.
- California formally adopted the FTC's National Do Not Call Registry as its own state list rather than running a separate one, so a single free registration at donotcall.gov covers you. State authorities can still enforce against telemarketers who ignore it, in addition to any federal penalty.
Your FTC and FCC reports are published (without your name or number) in the datasets this page is built from. How to report unwanted calls.
Area code 909: questions answered from the data
Where is area code 909?
Area code 909 serves Ontario, San Bernardino and Fontana, California, covering San Bernardino County, Los Angeles County and Riverside County. It has been in service since November 14, 1992. It was split from area code 714.
What time zone is area code 909 in?
Area code 909 is in the Pacific time zone (UTC−8, or UTC−7 during daylight saving time). The current local time is shown at the top of this page.
Which area codes overlay 909?
840 (in service 2021) serves the same area as 909. New numbers there can be issued with any of these codes, and local calls need all 10 digits. A spoofed call can display any of them.
What are calls from 909 numbers usually about?
Since Jul 24, consumers filed 2,312 FTC Do Not Call complaints about 909 numbers. The most common named subject was debt-relief pitches: 13% of complaints, 81% of them recorded messages. Across all subjects, 52% of callers who answered the question said the call was a robocall.
When do 909 spam calls happen?
33% of the complaints that give a call time describe calls between 10am and 1pm, and 90% came on weekdays, most often on Tuesday. Times are as consumers reported them.
Are calls from 909 numbers really local?
Not necessarily. 73% of the FTC complaints about 909 numbers came from California residents, but only 36% from people with 909 numbers themselves. The calls are mostly regional rather than aimed at 909 phones specifically.
Are 909 robocalls increasing?
In the four weeks to Oct 20, consumers filed 698 FTC complaints about 909 numbers, 14% fewer than the four weeks before.
How do I report a 909 scam call in California?
Report unwanted sales calls and robocalls to the FTC at donotcall.gov, and scams to ReportFraud.ftc.gov. The FCC takes complaints at consumercomplaints.fcc.gov. In California, the California Attorney General also handles consumer complaints about scam calls. Reports feed the public data this page is built from.
Overlay and nearby area codes
Sources: FTC Do Not Call complaints (unverified consumer reports), published every weekday and available here from Jul 24; FCC Consumer Complaint Data, public record, imported nightly; NANPA numbering records. A number appearing here means consumers reported calls that displayed it. Caller ID can be spoofed.