Area Code 940-521 located in GRAHAM, YOUNG, TX, more detail is as below. Place NPA (Numbering Plan Area) : 940 NXX (Local Number Prefix) : 521 City : GRAHAM County : YOUNG State : TX (Texas) NXX Use Type : Landline NXX Intro Version : 1997-07-06 FIPS (Federal Information Processing Standards) : 48503 LATA (Local Access Transport Area) : 548 Rate Center : GRAHAM ZIP Code Count : 850 ZIP Code Frequency : 100 ZIP Code : 76450 Other Information NPANXX : 940521 Switch CLLI (Common Language Location Identifier) : GRHMTXLIDS0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : SOUTHWESTERN BELL OCN (Operating Company Number) : 9533 Coverage Area Name : GRAHAM Latitude : 33.1009 Longitude : -98.5824 ‹ previous : 940-507 next › : 940-523 Telephone Number List 940-521-0000 ~ 940-521-9999