Area Code 650-204 located in SAN FRANCISCO, SAN FRANCISCO, CA, more detail is as below. Place NPA (Numbering Plan Area) : 650 NXX (Local Number Prefix) : 204 City : SAN FRANCISCO County : SAN FRANCISCO State : CA (California) NXX Use Type : Landline NXX Intro Version : 1999-05-10 FIPS (Federal Information Processing Standards) : 06075 LATA (Local Access Transport Area) : 722 Rate Center : MILLBRAE ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 94111 Other Information NPANXX : 650204 Switch CLLI (Common Language Location Identifier) : SNFCCANVDS0 MSA CBSA (Core Based Statistical Area) : San Francisco-Oakland-Fremont, CA MSA CBSA Code (Core Based Statistical Area) : 41860 Time Zone : Pacific (GMT -08:00) Observes Daylight Saving Time : Yes Company : TW TELECOM OF CALIFORNIA LP - CA OCN (Operating Company Number) : 7718 Coverage Area Name : SAN FRANCISCO Latitude : 37.7839 Longitude : -122.3890 ‹ previous : 650-202 next › : 650-204 Telephone Number List 650-204-0000 ~ 650-204-9999