Area Code 251-299 located in MOUNT VERNON, MOBILE, AL, more detail is as below. Place NPA (Numbering Plan Area) : 251 NXX (Local Number Prefix) : 299 City : MOUNT VERNON County : MOBILE State : AL (Alabama) NXX Use Type : Landline NXX Intro Version : 5/20/2010 FIPS (Federal Information Processing Standards) : 01097 LATA (Local Access Transport Area) : 480 Rate Center : MT VERNON ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 36560 Other Information NPANXX : 251299 County Population : 0 MSA CBSA (Core Based Statistical Area) : Mobile, AL MSA CBSA Code (Core Based Statistical Area) : 33660 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : MCC TELEPHONY OF THE SOUTH, LLC - AL OCN (Operating Company Number) : 773F Coverage Area Name : MOUNT VERNON Latitude : 31.0845 Longitude : -88.0111 ‹ previous : 251-298 next › : 251-300 Telephone Number List 251-299-0000 ~ 251-299-9999