Look up any phone number starting with 657 to identify the owner name, address, spam reports, and more. The 657 area code is a telephone area code serving the southern part of California.
Enter a full 10-digit number to identify the caller and whether it has been reported as spam.
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Phone numbers with the 657 area code originate from northern and western Orange County, a portion of Los Angeles County, and specific areas within San Bernardino County. While primarily serving these regions, some areas, such as portions of La Habra, and all of Seal Beach, Los Alamitos, the far northwestern portion of Brea, and the western portions of La Palma, are served by other area codes like 562. Additionally, cities like Costa Mesa, Irvine, Santa Ana, Tustin, and Newport Beach straddle the 657/714 and 949 area codes.
Area code 657 was introduced as an overlay onto the existing 714 area code territory. Area code 714 was originally assigned in 1951. Due to the increasing demand for telephone numbers, area code 657 was overlaid onto the 714 territory on September 23, 2008. This means that area codes 657 and 714 now serve the same geographic region.
Area code 657 is a general purpose code which was placed in service on September 23, 2008.
Our California phone number lookup for the 657 area code analyzes the three-digit prefix to identify the initially assigned telecommunications company and rate center. This prefix code data may help to determine the U.S. carrier, California geographic region, and local calling area associated with the phone number.
Phone numbers follow the following structure under the North American Numbering Plan:
Understanding the area code can help you determine if a call is local to your area. However, keep in mind that due to mobile number portability and VoIP services, the caller may be anywhere in the United States, so it’s best to search for the most recent phone number details.
| Company | Number of Prefixes |
|---|---|
| BANDWIDTH.COM CLEC, LLC - CA | 10 |
| LEVEL 3 COMMUNICATIONS, LLC - CA | 7 |
| T-MOBILE USA, INC. | 7 |
| ONVOY, LLC - CA | 6 |
| TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB | 6 |
| METROPCS NETWORKS, LLC | 3 |
| AT&T CORP. | 2 |
| NEW CINGULAR WIRELESS PCS, LLC | 2 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 1 |
| COMCAST IP PHONE, LLC | 1 |
| PACIFIC BELL | 1 |
| PAETEC COMMUNICATIONS, INC. - CA | 1 |
| PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 1 |
| SPRINT SPECTRUM, L.P. | 1 |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 1 |
Carrier names have been updated from their original FCC assignments to reflect current companies following mergers, acquisitions, and rebranding. Updates were determined using AI-assisted research and may not be accurate or reflect up to date changes. This data is provided without warranties of accuracy or completeness.
| Rate Center | Number of Prefixes |
|---|---|
| SANTA ANA | 13 |
| ANAHEIM | 9 |
| ORANGE | 6 |
| HUNTITNBCH | 5 |
| GARDEN GRV | 4 |
| WESTMINSTR | 4 |
| PLACENTIA | 3 |
| CYPRESS | 2 |
| FULLERTON | 2 |
| BUENA PARK | 1 |
| YORBALINDA | 1 |
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