Area Code 307-216 located in MANVILLE, NIOBRARA, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 216 City : MANVILLE County : NIOBRARA State : WY (Wyoming) NXX Use Type : Wireless NXX Intro Version : 2003-02-09 FIPS (Federal Information Processing Standards) : 56027 LATA (Local Access Transport Area) : 654 Rate Center : LUSK ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 82227 Other Information NPANXX : 307216 County Population : 0 Switch CLLI (Common Language Location Identifier) : DGLSWY01CM2 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : NEW CINGULAR WIRELESS PCS, LLC OCN (Operating Company Number) : 6010 Coverage Area Name : MANVILLE Latitude : 42.7581 Longitude : -104.4407 ‹ previous : 307-215 next › : 307-217 Telephone Number List 307-216-0000 ~ 307-216-9999