| District of California area codes: 661 | |
|---|---|
| Country | United States |
| State/Province | California |
| Major City | Bakersfield |
| Time Zone | Pacific (UTC-08:00) |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 661-200 | Los Angeles | Palmdale, CA | Pacific Bell |
| 661-201 | Kern | Bakersfield, CA | Sprint Spectrum L.p. |
| 661-202 | Los Angeles | Palmdale, CA | Tw Telecom Of California Lp |
| 661-203 | Kern | Bakersfield, CA | Cellco Partnership DBA Verizon Wireless |
| 661-204 | Kern | Bakersfield, CA | New Cingular Wireless PCS |
| 661-205 | Kern | Bakersfield, CA | New Cingular Wireless PCS |
| 661-206 | Los Angeles | Lancaster, CA | Paetec Communications |
| 661-207 | Los Angeles | Santa Clarita, CA | The Telephone Connection Of Los Angeles |
| 661-208 | Los Angeles | Palmdale, CA | Cellco Partnership DBA Verizon Wireless |
| 661-209 | Los Angeles | Santa Clarita, CA | Sprint Spectrum L.p. |
| 661-210 | Los Angeles | Santa Clarita, CA | O1 Communications |
| 661-212 | Los Angeles | Llano, CA | Sprint Spectrum L.p. |
| 661-213 | Kern | Bakersfield, CA | Sprint Spectrum L.p. |
| 661-214 | Kern | Lost Hills, CA | Pac - West Telecomm |
| 661-215 | Kern | Bakersfield, CA | Pac - West Telecomm |
| 661-216 | Los Angeles | Lancaster, CA | American Messaging Services |
| 661-217 | Kern | Buttonwillow, CA | American Messaging Services |
| 661-219 | Los Angeles | Santa Clarita, CA | Mci Worldcom Communications, Ca |
| 661-220 | Los Angeles | Lancaster, CA | T-mobile Usa |
| 661-221 | Los Angeles | Canyon Country, CA | T-mobile Usa |
There are 508 prefixes, In the code area, the major cities are Bakersfield, CA;Delano, CA;Lancaster, CA;Oildale, . The major city is Bakersfield.