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Does Google Fiber (GFiber) use CGNAT?

Fiber · Regional · last verified 2026-10-16

Short answer: No. Google Fiber (GFiber) gives home customers a public IPv4 address, according to Google Fiber (GFiber)'s own documentation. Static IP: Business only. IPv6 is available, so devices can still be reachable over IPv6.

Can I self-host on Google Fiber (GFiber)?

CGNAT by default?	No Confidence: High: stated on the ISP's own page. GFiber's help center calls the router's WAN IP 'your router's external public address'. (The page needs JavaScript; we read it through a search index.) Router WAN IP Address: This is your router's external public address assigned by GFiber to communicate with the global internet. support.google.com official support.google.com official
Free opt-out?	N/A
Static IP	Business only Static IPs are a feature available exclusively for our business customers. gfiber.com official
Static IP price	Unknown Not yet verified. Know the answer? Submit a report.
IPv6	Yes GFiber supports IPv6, but it's optional. gfiber.com official
Typical upload	Symmetrical (up to 1 Gbps upload on the 1 Gig plan). gfiber.com official
Terms on running servers	Allowed (personal use) GFiber's residential AUP bans only commercial servers and explicitly allows personal, non-commercial ones. To operate servers for commercial purposes. However, personal, non-commercial use of servers that comply with this AUP is acceptable, including ... using hardware or applications that include server capabilities for uses like multi-player gaming, video-conferencing, and home security. fiber.google.com official

Source types: official the ISP's own page · official-forum ISP staff on the ISP's forum · community customer reports · secondary a third party quoting the ISP. "Unknown" means we haven't verified it, not that the answer is no.

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