Area Code 671-588 located in AGANA HEIGHTS, GUAM, GU, more detail is as below. Place NPA (Numbering Plan Area) : 671 NXX (Local Number Prefix) : 588 City : AGANA HEIGHTS County : GUAM State : GU (None) NXX Use Type : Landline NXX Intro Version : 5/7/2009 FIPS (Federal Information Processing Standards) : 66010 LATA (Local Access Transport Area) : 871 Rate Center : AGANA ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 96919 Other Information NPANXX : 671588 Time Zone : Guam (GMT +10:00) Observes Daylight Saving Time : No Company : PULSE MOBILE LLC OCN (Operating Company Number) : 3922 Coverage Area Name : AGANA HEIGHTS Latitude : 13.4630 Longitude : -144.7435 ‹ previous : 671-565 next › : 671-632 Telephone Number List 671-588-0000 ~ 671-588-9999