Area Code 671-987 located in AGANA HEIGHTS, GUAM, GU, more detail is as below. Place NPA (Numbering Plan Area) : 671 NXX (Local Number Prefix) : 987 City : AGANA HEIGHTS County : GUAM State : GU (None) NXX Use Type : Wireless NXX Intro Version : 2005-10-13 FIPS (Federal Information Processing Standards) : 66010 LATA (Local Access Transport Area) : 871 Rate Center : AGANA ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 96919 Other Information NPANXX : 671987 Switch CLLI (Common Language Location Identifier) : HRMNGUABCM0 Time Zone : Guam (GMT +10:00) Observes Daylight Saving Time : No Company : PTI PACIFICA INC. OCN (Operating Company Number) : 387C Coverage Area Name : AGANA HEIGHTS Latitude : 13.4630 Longitude : -144.7435 ‹ previous : 671-979 next › : 671-988 Telephone Number List 671-987-0000 ~ 671-987-9999