Sign inMonitor a domain
aws · IVS_REALTIME

Amazon Web Services uses 254 prefixes for IVS_REALTIME.

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

Short answer

Amazon Web Services lists these prefixes under “IVS_REALTIME”. 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 prefixes104
IPv6 prefixes150
Regions in the first 100GLOBAL, us-west-2, us-east-1, us-east-2, sa-east-1, eu-central-1, eu-west-1, me-south-1 …
Fetched by peekip5 Nov 2026

Prefixes

PrefixRegion / locationService
103.53.48.0/22GLOBALIVS_REALTIME
185.42.204.0/22GLOBALIVS_REALTIME
192.108.239.0/24GLOBALIVS_REALTIME
192.16.64.0/21GLOBALIVS_REALTIME
199.9.248.0/21GLOBALIVS_REALTIME
23.160.0.0/24GLOBALIVS_REALTIME
35.50.128.0/24us-west-2IVS_REALTIME
35.50.129.0/24us-west-2IVS_REALTIME
35.50.130.0/24us-west-2IVS_REALTIME
35.50.131.0/24us-west-2IVS_REALTIME
35.50.132.0/24us-west-2IVS_REALTIME
35.50.133.0/24us-west-2IVS_REALTIME
35.50.134.0/24us-west-2IVS_REALTIME
35.50.135.0/24us-west-2IVS_REALTIME
35.50.137.0/24us-east-1IVS_REALTIME
35.50.139.0/24us-east-1IVS_REALTIME
35.50.141.0/24us-east-1IVS_REALTIME
35.50.142.0/24us-east-2IVS_REALTIME
35.50.143.0/24us-east-2IVS_REALTIME
35.50.144.0/24us-east-2IVS_REALTIME
35.50.145.0/24us-west-2IVS_REALTIME
35.50.160.0/24us-east-2IVS_REALTIME
35.50.161.0/24us-east-2IVS_REALTIME
35.50.176.0/24sa-east-1IVS_REALTIME
35.50.177.0/24sa-east-1IVS_REALTIME
35.50.178.0/24sa-east-1IVS_REALTIME
35.50.192.0/24eu-central-1IVS_REALTIME
35.50.193.0/24eu-central-1IVS_REALTIME
35.50.194.0/24eu-central-1IVS_REALTIME
35.50.195.0/24eu-west-1IVS_REALTIME
35.50.196.0/24eu-west-1IVS_REALTIME
35.50.197.0/24eu-west-1IVS_REALTIME
35.50.208.0/24me-south-1IVS_REALTIME
35.50.209.0/24me-south-1IVS_REALTIME
35.50.210.0/24me-south-1IVS_REALTIME
35.50.211.0/24me-south-1IVS_REALTIME
35.50.212.0/24me-south-1IVS_REALTIME
35.50.213.0/24me-south-1IVS_REALTIME
35.50.214.0/24me-south-1IVS_REALTIME
35.50.224.0/24ap-northeast-1IVS_REALTIME
35.50.226.0/24ap-northeast-1IVS_REALTIME
35.50.227.0/24ap-northeast-1IVS_REALTIME
35.50.228.0/24ap-northeast-3IVS_REALTIME
35.50.229.0/24ap-northeast-3IVS_REALTIME
35.50.230.0/24ap-northeast-3IVS_REALTIME
35.50.231.0/24ap-south-1IVS_REALTIME
35.50.232.0/24ap-south-1IVS_REALTIME
35.50.233.0/24ap-south-1IVS_REALTIME
35.50.234.0/24ap-southeast-1IVS_REALTIME
35.50.235.0/24ap-southeast-1IVS_REALTIME
Showing 50 of 254 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 103.53.48.0/22;
allow 185.42.204.0/22;
allow 192.108.239.0/24;
allow 192.16.64.0/21;
allow 199.9.248.0/21;
deny all;
iptables (first 5 prefixes)
iptables -A INPUT -s 103.53.48.0/22 -j ACCEPT
iptables -A INPUT -s 185.42.204.0/22 -j ACCEPT
iptables -A INPUT -s 192.108.239.0/24 -j ACCEPT
iptables -A INPUT -s 192.16.64.0/21 -j ACCEPT
iptables -A INPUT -s 199.9.248.0/21 -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