AWS IP ranges API

Static files at stable URLs, rebuilt within 30 minutes of every change. No key, no rate limit beyond GitHub Pages, and the files are small enough to fetch in a deploy step.

Endpoint	What you get
`https://manishh-13.github.io/aws-ip-map/ip-ranges.json`	Byte-for-byte mirror of the latest AWS file.
`https://manishh-13.github.io/aws-ip-map/ipv4.txt`	Every AWS IPv4 prefix, one per line.
`https://manishh-13.github.io/aws-ip-map/ipv6.txt`	Every AWS IPv6 prefix, one per line.
`https://manishh-13.github.io/aws-ip-map/ranges.csv`	prefix, IP version, region, network border group, services.
`https://manishh-13.github.io/aws-ip-map/regions/{region}/ipv4.txt`	One region, for example regions/eu-west-1/ipv4.txt. Also ipv6.txt, ranges.csv, ranges.json.
`https://manishh-13.github.io/aws-ip-map/services/{service}/ipv4.txt`	One service code in lowercase with dashes, for example services/cloudfront-origin-facing/ipv4.txt.
`https://manishh-13.github.io/aws-ip-map/regions/{region}/{service}/ipv4.txt`	One service in one region, for example regions/ap-south-1/s3/ipv4.txt.
`https://manishh-13.github.io/aws-ip-map/data/index.json`	Compact index used by the search on this site.
`https://manishh-13.github.io/aws-ip-map/data/history.json`	IPv4 address totals per region per snapshot since 2015.
`https://manishh-13.github.io/aws-ip-map/data/timeline.json`	The complete history: every entry ever published with the versions it was listed in.
`https://manishh-13.github.io/aws-ip-map/changes.xml`	Atom feed of every change.

Examples

Shell

curl -s https://manishh-13.github.io/aws-ip-map/services/cloudfront-origin-facing/ipv4.txt

Terraform

data "http" "cloudfront" {
  url = "https://manishh-13.github.io/aws-ip-map/services/cloudfront-origin-facing/ipv4.txt"
}

locals {
  cloudfront_cidrs = compact(split("\n", data.http.cloudfront.response_body))
}

Python

import ipaddress, urllib.request

url = "https://manishh-13.github.io/aws-ip-map/ipv4.txt"
nets = [ipaddress.ip_network(l) for l in urllib.request.urlopen(url).read().decode().split()]
print(any(ipaddress.ip_address("52.95.110.1") in n for n in nets))

For production allowlists that must react within minutes, subscribe to AWS's own SNS topic arn:aws:sns:us-east-1:806199016981:AmazonIpSpaceChanged and read the source file directly; this site is a convenience layer on top.