.gu is the Internet country code top-level domain (ccTLD) for Guam. Registrations are free of charge but are limited to people or companies with a contact in Guam, and are limited to third-level registrations beneath second-level names such as .com.gu. There has not been very much use of .gu addresses. Second level domains There are five Second Level Domains: com.gu: Commercial Entities net.gu: Network Service Providers gov.gu: Government org.gu: Non-commercial Organizations edu.gu: Education See also Internet in Guam Internet in the United States .us External links IANA .gu whois information Guam NIC (old site) Country code top-level domains Communications in Guam 1994 establishments in Guam sv:Toppdomän#G