aws · CODEBUILD

Amazon Web Services uses 61 prefixes for CODEBUILD.

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

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

Short answer

CODEBUILD lists the addresses AWS CodeBuild build environments connect out from.

IPv4 prefixes	61
IPv6 prefixes	0
Regions in the first 100	ap-southeast-3, ap-northeast-1, ap-northeast-2, ap-south-1, ap-southeast-1, af-south-1, eu-west-3, eu-north-1 …
Fetched by peekip	5 Nov 2026

Prefixes

Prefix	Region / location	Service
108.137.114.0/28	ap-southeast-3	CODEBUILD
13.112.191.184/29	ap-northeast-1	CODEBUILD
13.124.145.16/29	ap-northeast-2	CODEBUILD
13.127.70.136/29	ap-south-1	CODEBUILD
13.213.75.224/29	ap-southeast-1	CODEBUILD
13.244.202.40/29	af-south-1	CODEBUILD
13.245.166.176/29	af-south-1	CODEBUILD
13.36.84.112/29	eu-west-3	CODEBUILD
13.48.4.192/29	eu-north-1	CODEBUILD
13.51.253.80/29	eu-north-1	CODEBUILD
13.55.255.216/29	ap-southeast-2	CODEBUILD
13.56.32.200/29	us-west-1	CODEBUILD
140.179.113.248/29	cn-north-1	CODEBUILD
15.152.24.128/29	ap-northeast-3	CODEBUILD
15.160.55.112/29	eu-south-1	CODEBUILD
15.161.192.240/28	eu-south-1	CODEBUILD
15.184.184.96/29	me-south-1	CODEBUILD
15.200.28.88/29	us-gov-west-1	CODEBUILD
15.228.126.200/29	sa-east-1	CODEBUILD
16.162.162.96/29	ap-east-1	CODEBUILD
16.50.248.32/28	ap-southeast-4	CODEBUILD
16.62.188.224/28	eu-central-2	CODEBUILD
18.100.209.192/28	eu-south-2	CODEBUILD
18.169.230.200/29	eu-west-2	CODEBUILD
18.231.194.8/29	sa-east-1	CODEBUILD
18.252.145.168/29	us-gov-east-1	CODEBUILD
18.252.4.16/29	us-gov-east-1	CODEBUILD
18.60.78.240/28	ap-south-2	CODEBUILD
3.101.177.48/29	us-west-1	CODEBUILD
3.103.24.192/28	ap-southeast-6	CODEBUILD
3.109.72.152/29	ap-south-1	CODEBUILD
3.143.206.104/29	us-east-2	CODEBUILD
3.251.148.120/29	eu-west-1	CODEBUILD
3.26.127.24/29	ap-southeast-2	CODEBUILD
3.28.255.80/28	me-central-1	CODEBUILD
3.38.90.8/29	ap-northeast-2	CODEBUILD
3.68.251.232/29	eu-central-1	CODEBUILD
3.98.171.224/29	ca-central-1	CODEBUILD
34.228.4.208/28	us-east-1	CODEBUILD
34.250.63.248/29	eu-west-1	CODEBUILD
35.157.127.248/29	eu-central-1	CODEBUILD
35.176.92.32/29	eu-west-2	CODEBUILD
35.182.14.48/29	ca-central-1	CODEBUILD
35.75.131.80/29	ap-northeast-1	CODEBUILD
35.82.136.192/29	us-west-2	CODEBUILD
35.83.248.40/29	us-west-2	CODEBUILD
43.209.155.112/28	ap-southeast-7	CODEBUILD
44.192.245.160/28	us-east-1	CODEBUILD
44.192.255.128/28	us-east-1	CODEBUILD
44.242.161.24/29	us-west-2	CODEBUILD

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 108.137.114.0/28;
allow 13.112.191.184/29;
allow 13.124.145.16/29;
allow 13.127.70.136/29;
allow 13.213.75.224/29;
deny all;

iptables (first 5 prefixes)

iptables -A INPUT -s 108.137.114.0/28 -j ACCEPT
iptables -A INPUT -s 13.112.191.184/29 -j ACCEPT
iptables -A INPUT -s 13.124.145.16/29 -j ACCEPT
iptables -A INPUT -s 13.127.70.136/29 -j ACCEPT
iptables -A INPUT -s 13.213.75.224/29 -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 5 Nov 2026
Amazon Web Services documentation