Area Code 307-629 located in NEWCASTLE, WESTON, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 629 City : NEWCASTLE County : WESTON State : WY (Wyoming) NXX Use Type : Wireless NXX Intro Version : 2005-03-27 FIPS (Federal Information Processing Standards) : 56045 LATA (Local Access Transport Area) : 654 Rate Center : NEWCASTLE ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 82701 Other Information NPANXX : 307629 County Population : 0 Switch CLLI (Common Language Location Identifier) : NWCSWY020MD 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 : NEWCASTLE Latitude : 43.8586 Longitude : -104.2048 ‹ previous : 307-624 next › : 307-630 Telephone Number List 307-629-0000 ~ 307-629-9999