Area Code +1-671-(8580000...8589999) located in Agana, Guam (GU), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 671 Subscriber Number From : 8580000 Subscriber Number To : 8589999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : WAVE RUNNER LLC Click here to buy Guam Area Code Database Other Information Language Code : en (English) Country Number : 316 (Guam) Country Code : GU (Guam) Region Code : GU Region Name : Guam City : Agana Timezone : Pacific/Guam Coordinated Universal Time : +10:00 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : 13.4700 Longitude : 144.7500 ‹ previous : +1-671-(8480000...8489999) next › : +1-671-(8640000...8649999) Dialling Instructions For trunk calls: 1 671 8580000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 671 8580000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8580000 ~ 8589999 (Count: 10,000) Example: +1-671-8580000 / 0111-671-8580000 (1671-8580000 / 1-671-8580000) +1-671-8580001 / 0111-671-8580001 (1671-8580001 / 1-671-8580001) +1-671-8580002 / 0111-671-8580002 (1671-8580002 / 1-671-8580002) +1-671-8580003 / 0111-671-8580003 (1671-8580003 / 1-671-8580003) +1-671-8580004 / 0111-671-8580004 (1671-8580004 / 1-671-8580004) ...+1-671-xxxxxxx / 0111-671-xxxxxxx (1671-xxxxxxx / 1-671-xxxxxxx) ...+1-671-8589995 / 0111-671-8589995 (1671-8589995 / 1-671-8589995) +1-671-8589996 / 0111-671-8589996 (1671-8589996 / 1-671-8589996) +1-671-8589997 / 0111-671-8589997 (1671-8589997 / 1-671-8589997) +1-671-8589998 / 0111-671-8589998 (1671-8589998 / 1-671-8589998) +1-671-8589999 / 0111-671-8589999 (1671-8589999 / 1-671-8589999)