// CIRCLECI / IPTABLES
CircleCI · iptables
iptables shell script to allow or block CircleCI IP ranges on Linux. 47 CIDRs, refreshed daily.
// iptables_circleci_allow.sh
#!/bin/bash # Circleci IP Ranges # Updated: 2026-05-26 03:20:46 # Source: https://github.com/rezmoss/cloud-provider-ip-addresses # License: https://github.com/rezmoss/cloud-provider-ip-addresses/LICENSE # This file is generated automatically. Do not edit it directly. # Updates daily at 00:00 UTC # iptables allow rules for circleci iptables -A INPUT -s 100.27.248.128/25 -j ACCEPT iptables -A INPUT -s 100.29.139.128/25 -j ACCEPT iptables -A INPUT -s 98.80.165.0/24 -j ACCEPT iptables -A INPUT -s 38.23.41.0/24 -j ACCEPT iptables -A INPUT -s 38.23.42.0/24 -j ACCEPT iptables -A INPUT -s 38.23.43.0/24 -j ACCEPT iptables -A INPUT -s 207.254.116.0/24 -j ACCEPT iptables -A INPUT -s 207.254.118.0/24 -j ACCEPT iptables -A INPUT -s 18.97.4.0/24 -j ACCEPT iptables -A INPUT -s 18.97.6.0/24 -j ACCEPT iptables -A INPUT -s 18.97.7.0/24 -j ACCEPT iptables -A INPUT -s 38.23.48.0/24 -j ACCEPT iptables -A INPUT -s 38.23.49.0/24 -j ACCEPT iptables -A INPUT -s 38.23.50.0/24 -j ACCEPT iptables -A INPUT -s 38.23.51.0/24 -j ACCEPT iptables -A INPUT -s 38.23.52.0/24 -j ACCEPT … (31 more lines)
// iptables_circleci_deny.sh
#!/bin/bash # Circleci IP Ranges # Updated: 2026-05-26 03:20:46 # Source: https://github.com/rezmoss/cloud-provider-ip-addresses # License: https://github.com/rezmoss/cloud-provider-ip-addresses/LICENSE # This file is generated automatically. Do not edit it directly. # Updates daily at 00:00 UTC # iptables deny rules for circleci iptables -A INPUT -s 100.27.248.128/25 -j DROP iptables -A INPUT -s 100.29.139.128/25 -j DROP iptables -A INPUT -s 98.80.165.0/24 -j DROP iptables -A INPUT -s 38.23.41.0/24 -j DROP iptables -A INPUT -s 38.23.42.0/24 -j DROP iptables -A INPUT -s 38.23.43.0/24 -j DROP iptables -A INPUT -s 207.254.116.0/24 -j DROP iptables -A INPUT -s 207.254.118.0/24 -j DROP iptables -A INPUT -s 18.97.4.0/24 -j DROP iptables -A INPUT -s 18.97.6.0/24 -j DROP iptables -A INPUT -s 18.97.7.0/24 -j DROP iptables -A INPUT -s 38.23.48.0/24 -j DROP iptables -A INPUT -s 38.23.49.0/24 -j DROP iptables -A INPUT -s 38.23.50.0/24 -j DROP iptables -A INPUT -s 38.23.51.0/24 -j DROP iptables -A INPUT -s 38.23.52.0/24 -j DROP … (31 more lines)