aws · EFS

Amazon Web Services uses 195 prefixes for EFS.

Name: Amazon Web Services EFS IP ranges
Creator: Amazon Web Services

Last updated 4 Nov 2026 from Amazon Web Services’s own list (file dated 2026-11-04-00-47-05)

Short answer

Amazon Web Services lists these prefixes under “EFS”. Amazon Web Services publishes every public address range it uses in ip-ranges.json, tagged by region and by service (EC2, CloudFront, S3, Route 53 health checks and more). The AMAZON service covers all of them; the other tags are subsets.

IPv4 prefixes	101
IPv6 prefixes	94
Regions in the first 100	us-east-1, eu-west-1, ap-northeast-1, ca-central-1, eu-west-3, ap-southeast-3, af-south-1, ap-south-1 …
Fetched by peekip	4 Nov 2026

Prefixes

Prefix	Region / location	Service
100.59.224.0/25	us-east-1	EFS
100.62.24.0/22	us-east-1	EFS
100.62.28.0/22	us-east-1	EFS
100.62.32.0/22	us-east-1	EFS
100.62.36.0/22	us-east-1	EFS
100.62.40.0/22	us-east-1	EFS
100.62.44.0/22	us-east-1	EFS
100.62.48.0/22	us-east-1	EFS
100.62.52.0/22	us-east-1	EFS
100.62.56.0/22	us-east-1	EFS
100.62.60.0/22	us-east-1	EFS
100.62.64.0/22	us-east-1	EFS
100.62.68.0/22	us-east-1	EFS
108.133.102.0/25	eu-west-1	EFS
108.133.136.0/22	eu-west-1	EFS
108.133.140.0/22	eu-west-1	EFS
108.133.144.0/22	eu-west-1	EFS
108.133.148.0/22	eu-west-1	EFS
108.133.152.0/22	eu-west-1	EFS
108.133.156.0/22	eu-west-1	EFS
13.196.148.0/22	ap-northeast-1	EFS
13.196.152.0/22	ap-northeast-1	EFS
13.196.156.0/22	ap-northeast-1	EFS
13.197.100.0/22	ap-northeast-1	EFS
15.175.48.0/22	ca-central-1	EFS
15.224.180.0/22	eu-west-3	EFS
15.232.192.0/22	ap-southeast-3	EFS
15.240.196.0/22	af-south-1	EFS
15.252.132.0/22	ap-south-1	EFS
16.112.252.128/25	ap-south-2	EFS
16.113.80.0/22	ap-south-2	EFS
16.164.136.0/25	il-central-1	EFS
16.164.160.0/22	il-central-1	EFS
16.174.136.0/22	ca-west-1	EFS
16.174.90.128/25	ca-west-1	EFS
16.178.4.0/22	ap-southeast-2	EFS
16.178.8.0/22	ap-southeast-2	EFS
16.18.164.0/22	eu-central-2	EFS
16.18.95.128/25	eu-central-2	EFS
16.192.180.0/22	eu-north-1	EFS
16.208.112.0/22	ap-northeast-3	EFS
16.22.121.0/26	eu-south-1	EFS
16.22.121.64/28	eu-south-1	EFS
16.22.152.0/22	eu-south-1	EFS
16.22.41.144/28	eu-south-1	EFS
16.22.41.160/27	eu-south-1	EFS
16.27.108.0/22	ap-southeast-4	EFS
16.27.92.0/25	ap-southeast-4	EFS
16.65.98.128/25	us-gov-east-1	EFS
16.66.4.0/22	us-gov-east-1	EFS

What changed

31 Oct 2026
```
+ 63.189.210.0/23
```

28 Oct 2026

+ 13.197.100.0/22
+ 2406:da14:1e82:a000::/56

24 Oct 2026
```
+ 184.198.80.0/25
```

9 Oct 2026

+ 2a05:d010:82c4:9400::/56
+ 2a05:d010:83b8:6100::/56
+ 51.168.180.128/25
+ 51.168.188.0/22

Allowlist formats

nginx (first 5 prefixes)

allow 100.59.224.0/25;
allow 100.62.24.0/22;
allow 100.62.28.0/22;
allow 100.62.32.0/22;
allow 100.62.36.0/22;
deny all;

iptables (first 5 prefixes)

iptables -A INPUT -s 100.59.224.0/25 -j ACCEPT
iptables -A INPUT -s 100.62.24.0/22 -j ACCEPT
iptables -A INPUT -s 100.62.28.0/22 -j ACCEPT
iptables -A INPUT -s 100.62.32.0/22 -j ACCEPT
iptables -A INPUT -s 100.62.36.0/22 -j ACCEPT

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

Sources

Amazon Web Services: published IP ranges · checked 4 Nov 2026
Amazon Web Services documentation