Root Servers.
Snapshot · 18 Sep 2026

G-Root

Operational
g.root-servers.net

One of the 13 named authorities configured for the DNS root zone.

AS5927AnycastIPv4 + IPv6DNS RootDISA

What G-Root is

G-Root is the root server identity g.root-servers.net. It is one of the 13 named authorities for the DNS root zone, is operated by the Defense Information Systems Agency (DISA), and is served from multiple published locations using the same root-service addresses.

Global servicePublished sites across multiple regions
Root authorityAnswers authoritative queries for the root zone
Anycast deliveryOne service identity announced from many sites

Network & Service

Hostname
g.root-servers.net
IPv4
192.112.36.4
IPv6
2001:500:12::d0d
ASN
AS5927
Operator
Defense Information Systems Agency (DISA)
Transport
DNS over UDP / TCP · port 53
Address families
IPv4 and IPv6

Deployment Snapshot

6Published sitesroot-servers.org
6Operationalcurrent snapshot
0Suspendedcurrent snapshot
0Decommissionedcurrent snapshot

Global Anycast Service

Same root-service addresses, published from multiple network sites.

G-Root
ColumbusHonoluluNaples
G-Root192.112.36.42001:500:12::d0d
San AntonioStuttgartTokyo

Published Locations

All published G-Root sites from the operator-published dataset.

View All Locations
LocationSite typeIPv4IPv6Instances
Columbus, USGlobalEnabledEnabled1
Honolulu, USGlobalEnabledEnabled1
Naples, ITGlobalEnabledEnabled1
San Antonio, USGlobalEnabledEnabled1
Stuttgart, DEGlobalEnabledEnabled1
Tokyo, JPGlobalEnabledEnabled1