(671) 688
Prefix in AGANA, Guam
Prefix Details
About the (671) 688 Prefix
The (671) 688 prefix is assigned to GUAM WIRELESS TELEPHONE COMPANY, LLC and serves the AGANA rate center in Guam. Phone numbers with this prefix are in the (UTC+10) Time Zone and are part of area code 671 which covers Dededo and surrounding areas.