661 Area Code — Scam Calls, Location & Who's Calling
Area code 661 serves California in the Pacific time zone, in service since 1999. The FCC has 3,100 unwanted-call complaints against 2,272 different 661 numbers on record. Look up the exact number that called you below.
Most-reported 661 numbers
Ranked by FCC unwanted-call complaints. Click a number for its full report.
- (661) 748-••••89 complaints · 2019-01-03
- (661) 670-••••39 complaints · 2018-06-19
- (661) 670-••••33 complaints · 2019-05-01
- (661) 476-••••32 complaints · 2019-03-05
- (661) 306-••••25 complaints · 2016-03-09
- (661) 478-••••22 complaints · 2015-10-04
- (661) 552-••••20 complaints · 2018-04-10
- (661) 396-••••18 complaints · 2020-10-06
- (661) 670-••••18 complaints · 2018-06-29
- (661) 462-••••18 complaints · 2017-06-23
- (661) 670-••••17 complaints · 2019-03-28
- (661) 214-••••16 complaints · 2016-01-13
- (661) 678-••••14 complaints · 2020-01-09
- (661) 476-••••13 complaints · 2017-07-05
- (661) 836-••••12 complaints · 2015-01-31
- (661) 241-••••11 complaints · 2020-02-05
- (661) 546-••••11 complaints · 2017-03-08
- (661) 674-••••10 complaints · 2020-03-12
- (661) 670-••••10 complaints · 2018-06-30
- (661) 151-••••10 complaints · 2016-07-25
- (661) 522-••••9 complaints · 2017-04-04
- (661) 902-••••9 complaints · 2017-03-09
- (661) 434-••••9 complaints · 2015-02-16
- (661) 250-••••8 complaints · 2015-11-07
- (661) 670-••••7 complaints · 2020-02-12
661 unwanted-call complaints, last 12 months
Monthly FCC complaint volume against 661 numbers. Spikes usually mark an active robocall campaign cycling through the code.
Carriers operating in 661
Carriers assigned to 661 prefixes that visitors have looked up so far — resolved from official NPA-NXX assignment records.
- PACIFIC BELLI · 12 prefixes
- ONVOY, LLC - CAC · 9 prefixes
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAWireless · 7 prefixes
- BANDWIDTH.COM CLEC, LLC - CAC · 6 prefixes
- LEVEL 3 COMMUNICATIONS, LLC - CAC · 6 prefixes
- T-MOBILE USA, INC.Wireless · 6 prefixes
- FRONTIER CALIFORNIA INC.I · 4 prefixes
- LEVEL 3 TELECOM OF CALIFORNIA, LP - CAC · 2 prefixes
About area code 661
- Serves
- California
- Time zone
- Pacific
- In service since
- 1999-02-13
- Overlay
- No
Source: NANPA numbering records, refreshed weekly.
Spam calls from 661? What to know
Seeing repeated missed calls from 661 numbers you don't recognize is the classic signature of neighbor-spoofing robocall campaigns. The caller isn't necessarily in California — spoofing software displays whatever digits the campaign chooses. Never call unknown numbers back; look them up first, and report unwanted calls to the FCC to build the public record.
Area code 661 FAQs
Where is area code 661?
Area code 661 serves California, in the Pacific time zone. It has been in service since 1999.
Why do I keep getting calls from 661 numbers?
Robocallers use "neighbor spoofing" — displaying a number with a local area code to make you more likely to answer. A call showing area code 661 may not originate from California at all. Look up the full 10-digit number on this site to see its complaint history before calling back.
Are 661 numbers safe to call back?
Area codes themselves are neither safe nor unsafe — 661 contains millions of legitimate lines alongside any spoofed or spam numbers. The FCC has logged 3,100 unwanted-call complaints against 2,272 distinct 661 numbers in our current data window. Check the specific number's report page before returning a missed call.