Area Code 281-321 located in TOMBALL, HARRIS, TX, more detail is as below. Place NPA (Numbering Plan Area) : 281 NXX (Local Number Prefix) : 321 City : TOMBALL County : HARRIS State : TX (Texas) NXX Use Type : Landline NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 48201 LATA (Local Access Transport Area) : 560 Rate Center : SUGAR LAND ZIP Code Count : 1 ZIP Code Frequency : 11 ZIP Code : 77375 Other Information NPANXX : 281321 County Population : 0 Switch CLLI (Common Language Location Identifier) : SGLDTXXEDS0 MSA CBSA (Core Based Statistical Area) : Houston-Sugar Land-Baytown, TX MSA CBSA Code (Core Based Statistical Area) : 26420 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : WINDSTREAM SUGAR LAND, INC. OCN (Operating Company Number) : 2147 Coverage Area Name : SUGAR LAND Latitude : 29.6363 Longitude : -95.6000 ‹ previous : 281-320 next › : 281-321 Telephone Number List 281-321-0000 ~ 281-321-9999