Area Code 520-452 located in FORT HUACHUCA, COCHISE, AZ, more detail is as below. Place NPA (Numbering Plan Area) : 520 NXX (Local Number Prefix) : 452 City : FORT HUACHUCA County : COCHISE State : AZ (Arizona) NXX Use Type : Landline NXX Intro Version : 1995-02-11 FIPS (Federal Information Processing Standards) : 04003 LATA (Local Access Transport Area) : 668 Rate Center : SIERRAVIST ZIP Code Count : 103 ZIP Code Frequency : 11 ZIP Code : 85613 Other Information NPANXX : 520452 County Population : 0 Switch CLLI (Common Language Location Identifier) : SRVSAZMADS0 MSA CBSA (Core Based Statistical Area) : Sierra Vista-Douglas, AZ MSA CBSA Code (Core Based Statistical Area) : 43420 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : No Company : QWEST CORPORATION OCN (Operating Company Number) : 9636 Coverage Area Name : SIERRA VISTA Latitude : 31.5527 Longitude : -110.3065 ‹ previous : 520-451 next › : 520-452 Telephone Number List 520-452-0000 ~ 520-452-9999