Area Code 667-401 located in BALTIMORE, BALTIMORE CITY, MD, more detail is as below. Place NPA (Numbering Plan Area) : 667 NXX (Local Number Prefix) : 401 City : BALTIMORE County : BALTIMORE CITY State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 11/20/2012 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 : 21202 Other Information NPANXX : 667401 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 : LEVEL 3 COMMUNICATIONS, LLC - MD OCN (Operating Company Number) : 6119 Coverage Area Name : BALTIMORE Latitude : 39.2927 Longitude : -76.6215 ‹ previous : 667-330 next › : 669-200 Telephone Number List 667-401-0000 ~ 667-401-9999