Area Code 520-239 located in TUCSON, PIMA, AZ, more detail is as below. Place NPA (Numbering Plan Area) : 520 NXX (Local Number Prefix) : 239 City : TUCSON County : PIMA State : AZ (Arizona) NXX Use Type : Landline NXX Intro Version : 1999-02-27 FIPS (Federal Information Processing Standards) : 04019 LATA (Local Access Transport Area) : 668 Rate Center : TUCSON ZIP Code Count : 1 ZIP Code Frequency : 50 ZIP Code : 85710 Other Information NPANXX : 520239 County Population : 0 Switch CLLI (Common Language Location Identifier) : TCSNAZMADS2 MSA CBSA (Core Based Statistical Area) : Tucson, AZ MSA CBSA Code (Core Based Statistical Area) : 46060 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : No Company : AT&T LOCAL OCN (Operating Company Number) : 7421 Coverage Area Name : TUCSON Latitude : 32.2231 Longitude : -110.9671 ‹ previous : 520-238 next › : 520-239 Telephone Number List 520-239-0000 ~ 520-239-9999