Area Code 667-303 located in BALTIMORE, BALTIMORE CITY, MD, more detail is as below. Place NPA (Numbering Plan Area) : 667 NXX (Local Number Prefix) : 303 City : BALTIMORE County : BALTIMORE CITY State : MD (Maryland) NXX Use Type : Wireless NXX Intro Version : 3/11/2013 FIPS (Federal Information Processing Standards) : 24510 LATA (Local Access Transport Area) : 238 Rate Center : BALTIMORE ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 21201 Other Information NPANXX : 667303 MSA CBSA (Core Based Statistical Area) : Baltimore-Towson, MD MSA CBSA Code (Core Based Statistical Area) : 12580 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Overlay : L Company : 365 WIRELESS, LLC OCN (Operating Company Number) : 551G Coverage Area Name : BALTIMORE Latitude : 39.3002 Longitude : -76.6147 ‹ previous : 667-253 next › : 667-305 Telephone Number List 667-303-0000 ~ 667-303-9999