Area Code 281-504 located in HOUSTON, HARRIS, TX, more detail is as below. Place NPA (Numbering Plan Area) : 281 NXX (Local Number Prefix) : 504 City : HOUSTON County : HARRIS State : TX (Texas) NXX Use Type : Landline NXX Intro Version : 1998-01-25 FIPS (Federal Information Processing Standards) : 48201 LATA (Local Access Transport Area) : 560 Rate Center : HSTNSUBURB ZIP Code Count : 1 ZIP Code Frequency : 7 ZIP Code : 77060 Other Information NPANXX : 281504 County Population : 0 Switch CLLI (Common Language Location Identifier) : HSTNTXGIDS1 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 : MCIMETRO ACCESS TRANSMISSION SERVICES LLC OCN (Operating Company Number) : 7229 Coverage Area Name : HOUSTON Latitude : 29.7558 Longitude : -95.3666 ‹ previous : 281-504 next › : 281-504 Telephone Number List 281-504-0000 ~ 281-504-9999