AS6325 — ILLINOIS-CENTURY

AS6325 announces 157 IPv4 prefixes covering 725,504 addresses and 1 IPv6 prefixes.

About this network

ILLINOIS-CENTURY is the Illinois Century Network, the State of Illinois' statewide broadband network for public institutions, run by the Illinois Department of Innovation & Technology.

What it's used for

• Internet and intranet connectivity for K-12 school districts, higher-education campuses, public libraries, and state and local government sites across Illinois.
• Backbone transport over the state's open-access institutional fiber network, serving thousands of connected locations.

Notable

• Statewide research-and-education networks like ICN sit between a commercial ISP and a campus network: the addresses belong to the state network, but the users behind them are schools, libraries, and agencies.
• ICN was established by Illinois legislation in the late 1990s; ARIN's record for this AS number dates from 2001, so the low number does not indicate an early-internet allocation.

Interesting

• ICN participates in the national research-and-education community and provides its members access to Internet2, which is why Illinois K-12 traffic can end up on research-network paths.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 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

and 58 more.

Upstream networks

• AS6461 Zayo Bandwidth
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS22335 Metropolitan Research and Education Network
• AS7018 AT&T Enterprises, LLC
• AS293 ESnet

Downstream networks

• AS394534 City of Chicago
• AS46286 Cook County
• AS397112 Illinois Mathematics and Science Academy
• AS53695 Southern Illinois University at Edwardsville
• AS19070 Eastern Illinois University
• AS22887 Western Illinois University
• AS33460 Waubonsee Community College
• AS395433 Township High School District 214
• AS32344 Community High School District 99
• AS33019 Wheaton College
• AS26255 Oakton Community College
• AS63056 Hoopeston Area Schools
• AS10308 Northeastern Illinois University
• AS394797 Millikin University
• AS22978 Governors State University
• AS29993 North Central College
• AS394026 Village of Schaumburg
• AS15337 Wm. Rainey Harper College
• AS1416 Chicago Public Schools
• AS1702 CHICAGO STATE UNIVERSITY
• AS22666 Glenbrook High School District
• AS402166 Mannheim School District 83
• AS395847 Maine Township High School District 207
• AS23427 Glenbard HSD #87
• AS22272 -Reserved AS-

Adjacent networks

• AS174 Cogent Communications, LLC
• AS6461 Zayo Bandwidth
• AS6939 Hurricane Electric LLC
• AS394534 City of Chicago
• AS22335 Metropolitan Research and Education Network
• AS7018 AT&T Enterprises, LLC
• AS46286 Cook County
• AS397112 Illinois Mathematics and Science Academy
• AS53695 Southern Illinois University at Edwardsville
• AS19070 Eastern Illinois University
• AS22887 Western Illinois University
• AS33460 Waubonsee Community College
• AS395433 Township High School District 214
• AS32344 Community High School District 99
• AS11417 Northern Illinois University
• AS33019 Wheaton College
• AS26255 Oakton Community College
• AS63056 Hoopeston Area Schools
• AS10308 Northeastern Illinois University
• AS394797 Millikin University
• AS22978 Governors State University
• AS394026 Village of Schaumburg
• AS29993 North Central College
• AS15337 Wm. Rainey Harper College
• AS1416 Chicago Public Schools

Internet exchanges

• Equinix Internet Exchange Chicago — Chicago, United States
• FD-IX - St. Louis — St. Louis, United States
• MidWest-IX - St. Louis — St. Louis, United States