Area Code 940-456 located in GRAHAM, YOUNG, TX, more detail is as below. Place NPA (Numbering Plan Area) : 940 NXX (Local Number Prefix) : 456 City : GRAHAM County : YOUNG State : TX (Texas) NXX Use Type : Wireless NXX Intro Version : 2005-03-27 FIPS (Federal Information Processing Standards) : 48503 LATA (Local Access Transport Area) : 548 Rate Center : GRAHAM ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 76450 Other Information NPANXX : 940456 Switch CLLI (Common Language Location Identifier) : WCFLTXLW3MD Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX OCN (Operating Company Number) : 6506 Coverage Area Name : GRAHAM Latitude : 33.1009 Longitude : -98.5824 ‹ previous : 940-455 next › : 940-458 Telephone Number List 940-456-0000 ~ 940-456-9999