Prefix browse directory
IP Prefixes: 172.0.0.0/8
Whisper Internet Directory lists every BGP-announced IP prefix whose first octet is 172, covering the 172.0.0.0/8 address space. Prefixes are ordered lexically by their CIDR string; each one links to its canonical page at /prefix/<cidr> showing the announcing ASN, sample IPs, and any active MOAS conflicts. Browse an adjacent octet below to keep exploring.
Prefixes in 172.0.0.0/8
- 172.0.0.0/12
- 172.100.0.0/15
- 172.102.10.0/24
- 172.102.144.0/24
- 172.102.145.0/24
- 172.102.146.0/24
- 172.102.147.0/24
- 172.102.158.0/24
- 172.102.16.0/20
- 172.102.160.0/19
- 172.102.19.0/24
- 172.102.192.0/24
- 172.102.193.0/24
- 172.102.194.0/24
- 172.102.195.0/24
- 172.102.196.0/24
- 172.102.197.0/24
- 172.102.198.0/24
- 172.102.199.0/24
- 172.102.200.0/24
- 172.102.201.0/24
- 172.102.202.0/24
- 172.102.203.0/24
- 172.102.204.0/24
- 172.102.205.0/24
- 172.102.206.0/24
- 172.102.207.0/24
- 172.102.208.0/24
- 172.102.209.0/24
- 172.102.210.0/24
- 172.102.211.0/24
- 172.102.212.0/24
- 172.102.213.0/24
- 172.102.214.0/24
- 172.102.215.0/24
- 172.102.216.0/24
- 172.102.217.0/24
- 172.102.218.0/24
- 172.102.219.0/24
- 172.102.220.0/24
- 172.102.221.0/24
- 172.102.222.0/23
- 172.102.222.0/24
- 172.102.223.0/24
- 172.102.224.0/22
- 172.102.224.0/23
- 172.102.226.0/23
- 172.102.228.0/22
- 172.102.240.0/21
- 172.102.248.0/22
- 172.102.252.0/24
- 172.102.253.0/24
- 172.102.254.0/24
- 172.102.255.0/24
- 172.102.32.0/19
- 172.102.4.0/22
- 172.102.48.0/21
- 172.102.64.0/18
- 172.102.7.0/24
- 172.102.74.0/23
- 172.102.96.0/20
- 172.103.0.0/19
- 172.103.100.0/24
- 172.103.101.0/24
- 172.103.102.0/24
- 172.103.103.0/24
- 172.103.104.0/24
- 172.103.105.0/24
- 172.103.106.0/24
- 172.103.107.0/24
- 172.103.108.0/24
- 172.103.109.0/24
- 172.103.110.0/24
- 172.103.111.0/24
- 172.103.112.0/24
- 172.103.113.0/24
- 172.103.114.0/24
- 172.103.115.0/24
- 172.103.116.0/24
- 172.103.117.0/24
- 172.103.118.0/24
- 172.103.119.0/24
- 172.103.120.0/24
- 172.103.121.0/24
- 172.103.122.0/24
- 172.103.123.0/24
- 172.103.124.0/24
- 172.103.125.0/24
- 172.103.126.0/24
- 172.103.127.0/24
- 172.103.128.0/17
- 172.103.32.0/24
- 172.103.33.0/24
- 172.103.34.0/24
- 172.103.35.0/24
- 172.103.36.0/22
- 172.103.40.0/21
- 172.103.48.0/20
- 172.103.64.0/21
- 172.103.72.0/21
- 172.103.80.0/22
- 172.103.84.0/22
- 172.103.88.0/21
- 172.103.88.0/22
- 172.103.92.0/24
- 172.103.93.0/24
- 172.103.96.0/24
- 172.103.97.0/24
- 172.103.98.0/24
- 172.103.99.0/24
- 172.104.117.14/32
- 172.104.128.0/19
- 172.104.16.0/20
- 172.104.160.0/19
- 172.104.192.0/21
- 172.104.202.0/23
- 172.104.205.0/24
- 172.104.206.0/24
- 172.104.207.0/24
- 172.104.208.0/20
- 172.104.224.0/19
- 172.104.32.0/19
- 172.104.4.0/22
- 172.104.64.0/19
- 172.104.8.0/21
- 172.104.96.0/19
- 172.105.0.0/19
- 172.105.112.0/20
- 172.105.128.0/23
- 172.105.130.0/23
- 172.105.132.0/23
- 172.105.134.0/23
- 172.105.136.0/23
- 172.105.138.0/23
- 172.105.140.0/23
- 172.105.146.0/24
- 172.105.147.0/24
- 172.105.148.0/22
- 172.105.152.0/21
- 172.105.160.0/19
- 172.105.192.0/19
- 172.105.224.0/20
- 172.105.240.0/22
- 172.105.244.0/22
- 172.105.248.0/22
- 172.105.252.0/23
- 172.105.254.0/23
- 172.105.32.0/19
- 172.105.35.53/32
- 172.105.64.0/19
- 172.105.93.187/32
- 172.105.96.0/20
- 172.108.0.0/16
- 172.108.104.0/24
- 172.108.105.0/24
- 172.108.106.0/24
- 172.108.107.0/24
- 172.108.108.0/24
- 172.108.109.0/24
- 172.108.112.0/24
- 172.108.113.0/24
- 172.108.114.0/24
- 172.108.115.0/24
- 172.108.116.0/24
- 172.108.117.0/24
- 172.108.120.0/24
- 172.108.121.0/24
- 172.108.139.0/24
- 172.108.247.0/24
- 172.108.252.0/24
- 172.108.36.0/22
- 172.108.96.0/24
- 172.108.97.0/24
- 172.108.98.0/24
- 172.108.99.0/24
- 172.109.0.0/16
- 172.109.0.0/18
- 172.109.176.0/21
- 172.109.179.0/24
- 172.109.207.0/24
- 172.109.253.0/24
- 172.109.255.0/24
- 172.109.96.0/21
- 172.110.0.0/20
- 172.110.0.0/24
- 172.110.1.0/24
- 172.110.100.0/24
- 172.110.101.0/24
- 172.110.102.0/24
- 172.110.103.0/24
- 172.110.104.0/24
- 172.110.105.0/24
- 172.110.106.0/24
- 172.110.107.0/24
- 172.110.108.0/24
- 172.110.109.0/24
- 172.110.110.0/24
- 172.110.111.0/24
- 172.110.112.0/24
- 172.110.113.0/24
Adjacent octets
Discover routed prefixes
A rotating sample of routed prefixes from the Whisper Internet Directory — fresh picks to explore beyond the page you arrived on.
- 3.0.0.0/15Announcing ASN, routing status, and threat-feed overlap.
- 104.21.0.0/16Announcing ASN, routing status, and threat-feed overlap.
- 100.20.0.0/14Announcing ASN, routing status, and threat-feed overlap.
- 142.250.0.0/15Announcing ASN, routing status, and threat-feed overlap.
- 192.30.252.0/22Announcing ASN, routing status, and threat-feed overlap.
- 108.162.192.0/18Announcing ASN, routing status, and threat-feed overlap.
- 208.67.222.0/24Announcing ASN, routing status, and threat-feed overlap.
- 180.222.96.0/19Announcing ASN, routing status, and threat-feed overlap.
- 191.232.0.0/13Announcing ASN, routing status, and threat-feed overlap.
- 16.12.0.0/15Announcing ASN, routing status, and threat-feed overlap.
- 8.8.4.0/24Announcing ASN, routing status, and threat-feed overlap.
- 1.1.1.0/24Announcing ASN, routing status, and threat-feed overlap.
- 65.8.0.0/16Announcing ASN, routing status, and threat-feed overlap.
- 131.0.72.0/22Announcing ASN, routing status, and threat-feed overlap.
- 172.65.0.0/16Announcing ASN, routing status, and threat-feed overlap.
- 190.93.240.0/20Announcing ASN, routing status, and threat-feed overlap.
- 198.41.128.0/17Announcing ASN, routing status, and threat-feed overlap.
- 199.85.127.0/24Announcing ASN, routing status, and threat-feed overlap.
- 31.13.64.0/18Announcing ASN, routing status, and threat-feed overlap.
- 104.24.0.0/14Announcing ASN, routing status, and threat-feed overlap.
- 157.240.0.0/17Announcing ASN, routing status, and threat-feed overlap.
- 54.144.0.0/12Announcing ASN, routing status, and threat-feed overlap.
- 185.228.168.0/22Announcing ASN, routing status, and threat-feed overlap.
- 104.18.0.0/16Announcing ASN, routing status, and threat-feed overlap.