Area Code 209-666 located in TRACY, SAN JOAQUIN, CA, more detail is as below. Place NPA (Numbering Plan Area) : 209 NXX (Local Number Prefix) : 666 City : TRACY County : SAN JOAQUIN State : CA (California) NXX Use Type : Landline NXX Intro Version : 9/17/2012 FIPS (Federal Information Processing Standards) : 06077 LATA (Local Access Transport Area) : 738 Rate Center : TRACY ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 95304 Other Information NPANXX : 209666 County Population : 0 MSA CBSA (Core Based Statistical Area) : Stockton, CA MSA CBSA Code (Core Based Statistical Area) : 44700 Time Zone : Pacific (GMT -08:00) Observes Daylight Saving Time : Yes Company : CF COMMUNICATIONS, LLC DBA TELEKENEX - CA OCN (Operating Company Number) : 8886 Coverage Area Name : TRACY Latitude : 37.7329 Longitude : -121.4299 ‹ previous : 209-665 next › : 209-667 Telephone Number List 209-666-0000 ~ 209-666-9999