Area Code 667-312 located in ANNAPOLIS, ANNE ARUNDEL, MD, more detail is as below. Place NPA (Numbering Plan Area) : 667 NXX (Local Number Prefix) : 312 City : ANNAPOLIS County : ANNE ARUNDEL State : MD (Maryland) NXX Use Type : Wireless NXX Intro Version : 11/8/2012 FIPS (Federal Information Processing Standards) : 24003 LATA (Local Access Transport Area) : 238 Rate Center : ANNAPOLIS ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 21401 Other Information NPANXX : 667312 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 : CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD OCN (Operating Company Number) : 6395 Coverage Area Name : ANNAPOLIS Latitude : 38.9847 Longitude : -76.4961 ‹ previous : 667-308 next › : 667-313 Telephone Number List 667-312-0000 ~ 667-312-9999