HTTPfy

AS6325 Illinois Century Network

ILLINOIS-CENTURY - Illinois Century Network · registered in the United States

IPv4 addresses725,504157 prefixes · 0.023% of announced IPv4
Rank in United States#131largest network in US by IPv4 space, of 18,338 · 0.05% of US
Rank worldwide#454of 79,396 networks with IPv4
IPv61 x /32 (65,536 x /48)4 prefixes
CountryUnited States18,679 ASNs registered there

IPv4 prefixes

All 157 prefixes, in address order.

  • 64.107.0.0/23
  • 64.107.2.0/24
  • 64.107.4.0/22
  • 64.107.16.0/20
  • 64.107.32.0/21
  • 64.107.40.0/22
  • 64.107.49.0/24
  • 64.107.50.0/23
  • 64.107.52.0/23
  • 64.107.55.0/24
  • 64.107.56.0/21
  • 64.107.64.0/20
  • 64.107.83.0/24
  • 64.107.84.0/22
  • 64.107.88.0/21
  • 64.107.96.0/19
  • 64.107.128.0/19
  • 64.107.160.0/20
  • 64.107.176.0/21
  • 64.107.185.0/24
  • 64.107.186.0/23
  • 64.107.188.0/22
  • 64.107.192.0/18
  • 64.150.16.0/20
  • 64.150.32.0/19
  • 64.150.65.0/24
  • 64.150.66.0/23
  • 64.150.68.0/23
  • 64.150.71.0/24
  • 64.150.72.0/21
  • 64.150.84.0/22
  • 64.150.88.0/21
  • 64.150.96.0/19
  • 65.79.0.0/21
  • 65.79.8.0/23
  • 65.79.11.0/24
  • 65.79.12.0/23
  • 65.79.15.0/24
  • 65.79.16.0/20
  • 65.79.32.0/19
  • 65.79.64.0/19
  • 65.79.96.0/20
  • 65.79.112.0/21
  • 65.79.124.0/22
  • 66.99.0.0/22
  • 66.99.4.0/24
  • 66.99.6.0/23
  • 66.99.12.0/24
  • 66.99.16.0/20
  • 66.99.32.0/20
  • 66.99.48.0/23
  • 66.99.50.0/24
  • 66.99.52.0/22
  • 66.99.56.0/21
  • 66.99.64.0/18
  • 66.99.128.0/18
  • 66.99.192.0/19
  • 66.99.224.0/20
  • 66.99.242.0/23
  • 66.99.244.0/22
  • 66.99.248.0/21
  • 66.158.0.0/19
  • 66.158.32.0/21
  • 66.158.40.0/22
  • 66.158.44.0/23
  • 66.158.48.0/21
  • 66.158.56.0/23
  • 66.158.59.0/24
  • 66.158.60.0/22
  • 66.158.64.0/24
  • 66.158.66.0/23
  • 66.158.68.0/22
  • 66.158.72.0/21
  • 66.158.80.0/20
  • 66.158.96.0/19
  • 72.3.0.0/17
  • 163.191.0.0/16
  • 206.166.0.0/17
  • 207.63.0.0/19
  • 207.63.32.0/20
  • 207.63.48.0/22
  • 207.63.52.0/23
  • 207.63.55.0/24
  • 207.63.56.0/21
  • 207.63.64.0/19
  • 207.63.96.0/20
  • 207.63.112.0/21
  • 207.63.120.0/22
  • 207.63.125.0/24
  • 207.63.126.0/23
  • 207.63.128.0/18
  • 207.63.192.0/22
  • 207.63.200.0/21
  • 207.63.208.0/20
  • 207.63.224.0/19
  • 209.7.0.0/16
  • 209.174.0.0/19
  • 209.174.32.0/20
  • 209.174.48.0/21
  • 209.174.56.0/22
  • 209.174.61.0/24
  • 209.174.62.0/23
  • 209.174.64.0/18
  • 209.174.128.0/19
  • 209.174.160.0/21
  • 209.174.168.0/22
  • 209.174.173.0/24
  • 209.174.174.0/23
  • 209.174.176.0/20
  • 209.174.192.0/18
  • 209.175.0.0/19
  • 209.175.32.0/21
  • 209.175.40.0/22
  • 209.175.48.0/20
  • 209.175.64.0/21
  • 209.175.76.0/22
  • 209.175.80.0/20
  • 209.175.96.0/19
  • 209.175.128.0/19
  • 209.175.160.0/21
  • 209.175.172.0/23
  • 209.175.174.0/24
  • 209.175.176.0/20
  • 209.175.192.0/18
  • 216.124.0.0/17
  • 216.124.128.0/20
  • 216.124.144.0/21
  • 216.124.152.0/22
  • 216.124.160.0/19
  • 216.124.192.0/18
  • 216.125.0.0/19
  • 216.125.32.0/22
  • 216.125.36.0/23
  • 216.125.38.0/24
  • 216.125.40.0/22
  • 216.125.45.0/24
  • 216.125.46.0/23
  • 216.125.49.0/24
  • 216.125.50.0/23
  • 216.125.52.0/22
  • 216.125.57.0/24
  • 216.125.58.0/23
  • 216.125.60.0/22
  • 216.125.64.0/18
  • 216.125.128.0/20
  • 216.125.148.0/22
  • 216.125.153.0/24
  • 216.125.154.0/23
  • 216.125.156.0/22
  • 216.125.160.0/19
  • 216.125.192.0/19
  • 216.125.224.0/21
  • 216.125.232.0/22
  • 216.125.240.0/23
  • 216.125.242.0/24
  • 216.125.247.0/24
  • 216.125.254.0/23

IPv6 prefixes

All 4 prefixes.

  • 2001:1848::/35
  • 2001:1848:2000::/35
  • 2001:1848:4000::/34
  • 2001:1848:8000::/33

Similar-sized networks in United States

ASNNameIPv4 addresses
AS2572#128 MORENET - University of Missouri - dba the Missouri Research and Education Network (MOREnet)743,552
AS11686#129 ZAYO-ENA-11686 - Zayo Bandwidth734,720
AS2687#130 ATGS-MMD-AS - AT&T Enterprises, LLC727,040
AS14265#132 US-TELEPACIFIC - TPx Communications715,776
AS703#133 UUNET - Verizon Business694,784
AS21508#134 COMCAST-21508 - Comcast Cable Communications, LLC689,408

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources