661 Area Code: Bakersfield, California
Area code 661 serves Bakersfield, Palmdale and Santa Clarita, California in the Pacific time zone, in service since 1999. Consumers have filed 4,501 unwanted-call complaints against 3,562 different 661 numbers, 547 of them with the FTC in the last 30 days. Look up the exact number that called you below.
Area code 661 at a glance
- State
- California
- Main cities
- Bakersfield, Palmdale, Santa Clarita, Lancaster, Delano, Arvin + 19 more
- Counties
- Kern County, Los Angeles County, Tulare County, Santa Barbara County
- Local time
- —Pacific
- In service since
- February 13, 1999
- Split from
- 805
- Local dialing
- 7 digits allowed
- Exchanges
- 32 rate centers, 675 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 661 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 661 numbers are about
1,385 FTC Do Not Call complaints about 661 numbers since Jul 24. The most common named subject is debt-relief pitches, at 20% of complaints (90% of those were recorded messages). Overall, 62% of callers who answered said the call was a robocall.
FTC complaint subjects
- Other / unspecified57441%
- Debt reduction27620%
- Dropped call / no message16012%
- Impostor (government, business, family)1279%
- No subject given957%
- Home improvement & cleaning695%
- Energy, solar & utilities222%
FCC complaints by call type, last 2 years
- Live Voice9656%
- Prerecorded Voice6135%
- Text Message159%
Live-voice calls are from a person; prerecorded calls are robocalls.
When 661 spam calls come in
32% of complaints that give a call time describe calls between 10am and 1pm. 90% came Monday to Friday, most on Wednesdays, 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?
540 FTC complaints about 661 numbers in the last four weeks, up 22% on the four weeks before. FCC complaints about 661 numbers peaked in 2021 (560); 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
65% of the FTC complaints about 661 numbers came from California residents, but only 26% from people with 661 numbers themselves. The calls are mostly regional rather than aimed at 661 phones specifically.
Where complainants live
- California89665%
- Florida443%
- New York322%
- Texas272%
- North Carolina272%
What people with 661 numbers report
People whose own number starts with 661 filed 2,180 FTC complaints since Jul 24. 16% were about calls showing another 661 number. The most common named subject was debt-relief pitches.
Area codes on the calls they reported
- 661 (same code)35916%
- 877 (toll-free)1145%
- 833 (toll-free)1015%
- 888 (toll-free)1015%
- 855 (toll-free)874%
Likely campaigns using 661 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 661 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 |
|---|---|---|---|---|
| (661) 680-xxxx | 32 | 30 | Onvoy (Sinch) | Bakersfield North |
| (661) 464-xxxx | 21 | 19 | Onvoy (Sinch) | Lake Hughes |
| (661) 651-xxxx | 15 | 15 | Onvoy (Sinch) | Santa Clarita |
| (661) 545-xxxx | 13 | 12 | T-Mobile USA | Delano |
| (661) 230-xxxx | 10 | 10 | Bandwidth.com | Edwards |
Carriers operating in 661
NANPA has assigned 675 661 prefixes (NPA-NXX central-office codes) across 32 rate centers: 34% to wireless carriers, 65% to landline and VoIP operators; 79% are pooled blocks shared by several carriers. 11 prefixes were assigned in the last 12 months (newest 2026-09-25). 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 |
|---|---|---|---|---|
| Pacific Bell (AT&T) | Incumbent landline (ILEC) | 144(21%) | 20 | 2015-02-17 |
| AT&T Mobility (New Cingular Wireless PCS) | Wireless | 75(11%) | 15 | 2026-03-26 |
| T-Mobile USA | Wireless | 56(8%) | 11 | 2025-03-21 |
| Onvoy (Sinch) | Competitive / VoIP (CLEC) | 51(8%) | 20 | 2026-09-17 |
| Verizon Wireless (Cellco Partnership) | Wireless | 50(7%) | 9 | 2026-09-25 |
| Level 3 (Lumen) | Competitive / VoIP (CLEC) | 35(5%) | 22 | 2014-11-25 |
| Bandwidth.com | Competitive / VoIP (CLEC) | 29(4%) | 17 | 2022-10-11 |
| Frontier Communications | Incumbent landline (ILEC) | 29(4%) | 12 | — |
| Metro by T-Mobile (MetroPCS) | Wireless | 19(3%) | 4 | 2020-09-23 |
| Metro by T-Mobile (MetroPCS) | Wireless | 18(3%) | 6 | 2018-08-16 |
| Level 3 (Lumen) | Competitive / VoIP (CLEC) | 17(3%) | 17 | — |
| Teleport Communications America, LLC | Competitive / VoIP (CLEC) | 14(2%) | 7 | 2023-12-15 |
Largest rate centers (exchanges) by prefixes: Bakersfield (150), Palmdale (96), Santa Clarita (96), Lancaster (56), Bakersfield South (50), Bakersfield North (29), Arvin (23), Delano (23), Edwards (13). Source: NANPA Central Office Code Utilized Assignments (public, refreshed weekly).
What to do about calls from 661 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 661 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 661: questions answered from the data
Where is area code 661?
Area code 661 serves Bakersfield, Palmdale and Santa Clarita, California, covering Kern County, Los Angeles County and Tulare County and 1 more county. It has been in service since February 13, 1999. It was split from area code 805.
What time zone is area code 661 in?
Area code 661 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.
What are calls from 661 numbers usually about?
Since Jul 24, consumers filed 1,385 FTC Do Not Call complaints about 661 numbers. The most common named subject was debt-relief pitches: 20% of complaints, 90% of them recorded messages. Across all subjects, 62% of callers who answered the question said the call was a robocall.
When do 661 spam calls happen?
32% of the complaints that give a call time describe calls between 10am and 1pm, and 90% came on weekdays, most often on Wednesday. Times are as consumers reported them.
Are calls from 661 numbers really local?
Not necessarily. 65% of the FTC complaints about 661 numbers came from California residents, but only 26% from people with 661 numbers themselves. The calls are mostly regional rather than aimed at 661 phones specifically.
Are 661 robocalls increasing?
In the four weeks to Oct 20, consumers filed 540 FTC complaints about 661 numbers, 22% more than the four weeks before.
How do I report a 661 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.
Other California 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.