Area Code 719-203 located in ALAMOSA, ALAMOSA, CO, more detail is as below. Place NPA (Numbering Plan Area) : 719 NXX (Local Number Prefix) : 203 City : ALAMOSA County : ALAMOSA State : CO (Colorado) NXX Use Type : Landline NXX Intro Version : 2001-03-03 FIPS (Federal Information Processing Standards) : 08003 LATA (Local Access Transport Area) : 658 Rate Center : ALAMOSA ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 81101 Other Information NPANXX : 719203 Switch CLLI (Common Language Location Identifier) : ALMSCOSIRS0 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : ESCHELON TELECOM OF COLORADO, INC. - CO OCN (Operating Company Number) : 3467 Coverage Area Name : COLORADO SPRINGS Latitude : 38.8360 Longitude : -104.8182 ‹ previous : 719-202 next › : 719-204 Telephone Number List 719-203-0000 ~ 719-203-9999