Microsoft Azure uses 52 prefixes for AzureQuantum.

Prefixes

What changed

• 4 Nov 2026

  + 134.138.214.142/31
  + 134.138.214.144/28
  + 172.178.144.192/27
  + 172.187.44.32/27
  + 172.215.255.96/27
  + 172.215.51.56/29
  + 172.215.78.220/30
  + 2603:1020:1004:d::540/123
  + 2603:1020:206:12::4a0/123
  + 2603:1020:5:c::3c0/123
  + 2603:1020:605:7::780/123
  + 2603:1020:705:6::5c0/123
  + 2603:1020:c04:6::1a0/123
  + 2603:1030:210:15::a0/123
  + 2603:1030:40b:10::120/126
  + 2603:1030:40b:10::88/125
  + 2603:1030:40b:10::90/124
  + 2603:1030:40b:f::4de/127
  + 2603:1030:504:15::31e/127
  + 2603:1030:504:15::394/126
  + 2603:1030:504:15::398/125
  + 2603:1030:504:15::420/124
  + 2603:1030:a07:f::300/123
  + 2603:1030:b04:7::460/123
  + 2603:1030:c06:10::780/123
  + 2603:1030:f:e::792/127
  + 2603:1030:f:e::794/126
  + 2603:1030:f:f::3c0/124
  + 2603:1030:f:f::3d0/125
  + 2603:1040:407:8::260/123
  + 2603:1040:606:7::160/123
  + 4.158.181.0/27
  + 4.166.36.96/27
  + 4.182.144.64/27
  + 4.190.236.0/27
  + 4.207.51.160/27
  + 48.209.79.160/27
  + 48.210.98.224/27
  + 48.211.40.32/27
  + 48.223.49.102/31
  + 48.223.49.104/29
  + 48.223.49.112/28
  + 51.57.123.100/30
  + 51.57.123.112/28
  + 51.57.123.128/29
  + 51.57.123.136/31
  + 57.162.12.182/31
  + 57.162.12.212/30
  + 57.162.12.216/29
  + 57.162.12.224/28
  + 72.147.11.160/30
  + 72.154.44.128/27
  

Allowlist formats

allow 134.138.214.142/31;
allow 134.138.214.144/28;
allow 172.178.144.192/27;
allow 172.187.44.32/27;
allow 172.215.255.96/27;
deny all;

iptables -A INPUT -s 134.138.214.142/31 -j ACCEPT
iptables -A INPUT -s 134.138.214.144/28 -j ACCEPT
iptables -A INPUT -s 172.178.144.192/27 -j ACCEPT
iptables -A INPUT -s 172.187.44.32/27 -j ACCEPT
iptables -A INPUT -s 172.215.255.96/27 -j ACCEPT

Sources

1. Microsoft Azure: published IP ranges · checked 6 Nov 2026
2. Microsoft Azure documentation