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aws · ROUTE53

Amazon Web Services uses 40 prefixes for ROUTE53.

Last updated 5 Nov 2026 from Amazon Web Services’s own list (file dated 2026-11-04-23-10-01)

Short answer

ROUTE53 lists the addresses of Amazon’s authoritative DNS servers.

IPv4 prefixes26
IPv6 prefixes14
Regions in the first 100GLOBAL, eu-central-1, us-gov-east-1, us-west-2, eusc-de-east-1, us-gov-west-1, cn-northwest-1, cn-north-1
Fetched by peekip5 Nov 2026

Prefixes

PrefixRegion / locationService
1.179.52.0/22GLOBALROUTE53
1.179.56.0/22GLOBALROUTE53
18.196.222.0/24eu-central-1ROUTE53
18.196.223.0/24eu-central-1ROUTE53
205.251.192.0/21GLOBALROUTE53
205.251.200.0/23GLOBALROUTE53
3.4.24.0/23us-gov-east-1ROUTE53
3.4.26.0/23us-gov-east-1ROUTE53
3.4.32.0/20GLOBALROUTE53
34.217.142.0/24us-west-2ROUTE53
34.217.143.0/24us-west-2ROUTE53
51.0.136.0/23eusc-de-east-1ROUTE53
51.0.138.0/23eusc-de-east-1ROUTE53
51.0.140.0/23eusc-de-east-1ROUTE53
51.0.142.0/23eusc-de-east-1ROUTE53
52.46.180.0/22us-west-2ROUTE53
52.46.184.0/22eu-central-1ROUTE53
52.61.226.0/23us-gov-west-1ROUTE53
52.82.176.0/22cn-northwest-1ROUTE53
52.82.180.0/22cn-northwest-1ROUTE53
52.95.110.0/24GLOBALROUTE53
54.222.32.0/22cn-north-1ROUTE53
54.222.36.0/22cn-north-1ROUTE53
63.246.114.0/23GLOBALROUTE53
64.91.192.0/19GLOBALROUTE53
96.127.116.0/23us-gov-west-1ROUTE53
2001:3fc6:8::/47eusc-de-east-1ROUTE53
2001:3fc6:a::/47eusc-de-east-1ROUTE53
2001:3fc6:c::/47eusc-de-east-1ROUTE53
2001:3fc6:e::/47eusc-de-east-1ROUTE53
2600:9000:5300::/45GLOBALROUTE53
2600:9000:7000::/36GLOBALROUTE53
2600:9000:de0::/43GLOBALROUTE53
2600:9000:f530::/46GLOBALROUTE53
2600:9000:fc0::/43GLOBALROUTE53
2600:9000:ff8::/46GLOBALROUTE53
2600:f0f0:400::/44us-gov-east-1ROUTE53
2600:f0f2:7000::/44us-gov-east-1ROUTE53
2600:f0f3:f000::/44us-gov-west-1ROUTE53
2600:f0fb:f000::/44us-gov-west-1ROUTE53
Showing 40 of 40 prefixes All prefixes (CSV)

What changed

No prefixes added or removed since we started tracking this list. Changes appear here the day after the provider publishes them.

Allowlist formats

nginx (first 5 prefixes)
allow 1.179.52.0/22;
allow 1.179.56.0/22;
allow 18.196.222.0/24;
allow 18.196.223.0/24;
allow 205.251.192.0/21;
deny all;
iptables (first 5 prefixes)
iptables -A INPUT -s 1.179.52.0/22 -j ACCEPT
iptables -A INPUT -s 1.179.56.0/22 -j ACCEPT
iptables -A INPUT -s 18.196.222.0/24 -j ACCEPT
iptables -A INPUT -s 18.196.223.0/24 -j ACCEPT
iptables -A INPUT -s 205.251.192.0/21 -j ACCEPT

Generate the full list from the CSV, and refresh it on a schedule: providers add and retire prefixes often.

Sources

  1. Amazon Web Services: published IP ranges · checked 5 Nov 2026
  2. Amazon Web Services documentation