Area Code 512-237 located in SMITHVILLE, BASTROP, TX, more detail is as below. Place NPA (Numbering Plan Area) : 512 NXX (Local Number Prefix) : 237 City : SMITHVILLE County : BASTROP State : TX (Texas) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 48021 LATA (Local Access Transport Area) : 558 Rate Center : SMITHVILLE ZIP Code Count : 1878 ZIP Code Frequency : 98 ZIP Code : 78957 Other Information NPANXX : 512237 Switch CLLI (Common Language Location Identifier) : SMVLTXSMRS0 MSA CBSA (Core Based Statistical Area) : Austin-Round Rock-San Marcos, TX MSA CBSA Code (Core Based Statistical Area) : 12420 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : SOUTHWESTERN BELL OCN (Operating Company Number) : 9533 Coverage Area Name : SMITHVILLE Latitude : 30.0091 Longitude : -97.1582 ‹ previous : 512-236 next › : 512-238 Telephone Number List 512-237-0000 ~ 512-237-9999