Area Code +1-671-(4720000...4729999) 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 : 4720000 Subscriber Number To : 4729999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : TELEGUAM HOLDINGS 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-(4710000...4719999) next › : +1-671-(4730000...4739999) Dialling Instructions For trunk calls: 1 671 4720000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 671 4720000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4720000 ~ 4729999 (Count: 10,000) Example: +1-671-4720000 / 0111-671-4720000 (1671-4720000 / 1-671-4720000) +1-671-4720001 / 0111-671-4720001 (1671-4720001 / 1-671-4720001) +1-671-4720002 / 0111-671-4720002 (1671-4720002 / 1-671-4720002) +1-671-4720003 / 0111-671-4720003 (1671-4720003 / 1-671-4720003) +1-671-4720004 / 0111-671-4720004 (1671-4720004 / 1-671-4720004) ...+1-671-xxxxxxx / 0111-671-xxxxxxx (1671-xxxxxxx / 1-671-xxxxxxx) ...+1-671-4729995 / 0111-671-4729995 (1671-4729995 / 1-671-4729995) +1-671-4729996 / 0111-671-4729996 (1671-4729996 / 1-671-4729996) +1-671-4729997 / 0111-671-4729997 (1671-4729997 / 1-671-4729997) +1-671-4729998 / 0111-671-4729998 (1671-4729998 / 1-671-4729998) +1-671-4729999 / 0111-671-4729999 (1671-4729999 / 1-671-4729999)