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Organization

Illinois Century Network

IPv4 addresses
725,504
CIDR ranges
157
Category
enterprise
BGP prefixes announced
83

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

69/100
Moderate
How this score is built

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

Countries served by Illinois Century Network

Every country where this organization has IPv4 allocations, ranked by IPs held.

ASNs owned by Illinois Century Network

ASNNameIPsPrefixesCountry
AS6325 Illinois Century Network 725.5K 157 US

Largest CIDR ranges

CIDRIPsPTR DensityASNCountryStateCity
163.191.0.0/16 65.5K
1.0%
AS6325 US Illinois Springfield
209.7.0.0/16 65.5K
55.8%
AS6325 US Illinois Lake Zurich
72.3.0.0/17 32.8K
0.0%
AS6325 US — —
206.166.0.0/17 32.8K
24.3%
AS6325 US Illinois Freeport
216.124.0.0/17 32.8K
32.1%
AS6325 US Illinois Wilmette
64.107.192.0/18 16.4K
29.9%
AS6325 US Illinois Melrose Park
66.99.64.0/18 16.4K
35.1%
AS6325 US Illinois Hanover Park
66.99.128.0/18 16.4K
33.2%
AS6325 US Illinois Robinson
207.63.128.0/18 16.4K
38.6%
AS6325 US Illinois Roselle
209.174.64.0/18 16.4K
74.5%
AS6325 US Illinois Sterling
209.174.192.0/18 16.4K
48.0%
AS6325 US Illinois O'Fallon
209.175.192.0/18 16.4K
33.9%
AS6325 US Illinois Champaign
216.124.192.0/18 16.4K
52.8%
AS6325 US Illinois Peoria
216.125.64.0/18 16.4K
24.9%
AS6325 US Illinois Elgin
64.107.96.0/19 8.2K
35.6%
AS6325 US Illinois Decatur
64.107.128.0/19 8.2K
20.7%
AS6325 US Illinois Waukegan
64.150.32.0/19 8.2K
0.8%
AS6325 US Illinois North Chicago
64.150.96.0/19 8.2K
0.0%
AS6325 US — —
65.79.32.0/19 8.2K
9.7%
AS6325 US Illinois Chicago
65.79.64.0/19 8.2K
0.3%
AS6325 US — —
66.99.192.0/19 8.2K
27.1%
AS6325 US Illinois Peoria
66.158.0.0/19 8.2K
0.1%
AS6325 US Illinois Springfield
66.158.96.0/19 8.2K
56.4%
AS6325 US — —
207.63.0.0/19 8.2K
99.2%
AS6325 US Illinois Dixon
207.63.64.0/19 8.2K
0.8%
AS6325 US Illinois Chicago
207.63.224.0/19 8.2K
61.4%
AS6325 US Illinois Roselle
209.174.0.0/19 8.2K
22.3%
AS6325 US — —
209.174.128.0/19 8.2K
34.3%
AS6325 US Illinois Quincy
209.175.0.0/19 8.2K
39.5%
AS6325 US Illinois Romeoville
209.175.96.0/19 8.2K
40.8%
AS6325 US Illinois Arlington Heights
209.175.128.0/19 8.2K
93.3%
AS6325 US — —
216.124.160.0/19 8.2K
92.9%
AS6325 US Illinois Winnebago
216.125.0.0/19 8.2K
34.6%
AS6325 US Illinois Naperville
216.125.160.0/19 8.2K
75.4%
AS6325 US Illinois Joliet
216.125.192.0/19 8.2K
23.3%
AS6325 US Illinois Altamont
64.107.16.0/20 4.1K
0.0%
AS6325 US — —
64.107.64.0/20 4.1K
6.0%
AS6325 US Illinois Chicago
64.107.160.0/20 4.1K
16.7%
AS6325 US Illinois Addison
64.150.16.0/20 4.1K
0.0%
AS6325 US — —
65.79.16.0/20 4.1K
0.4%
AS6325 US — —
65.79.96.0/20 4.1K
0.5%
AS6325 US — —
66.99.16.0/20 4.1K
6.1%
AS6325 US Illinois Joliet
66.99.32.0/20 4.1K
6.8%
AS6325 US Illinois River Grove
66.99.224.0/20 4.1K
5.4%
AS6325 US Illinois Forest Park
66.158.80.0/20 4.1K
22.1%
AS6325 US Illinois Wilmette
207.63.32.0/20 4.1K
45.9%
AS6325 US Illinois Manteno
207.63.96.0/20 4.1K
60.3%
AS6325 US Illinois Lake Villa
207.63.208.0/20 4.1K
55.4%
AS6325 US Illinois Roselle
209.174.32.0/20 4.1K
69.5%
AS6325 US — —
209.174.176.0/20 4.1K
24.4%
AS6325 US Illinois Champaign
209.175.48.0/20 4.1K
76.9%
AS6325 US — —
209.175.80.0/20 4.1K
51.1%
AS6325 US Illinois Park Ridge
209.175.176.0/20 4.1K
2.6%
AS6325 US — —
216.124.128.0/20 4.1K
1.9%
AS6325 US Illinois Charleston
216.125.128.0/20 4.1K
31.3%
AS6325 US — —
64.107.32.0/21 2.0K
0.0%
AS6325 US — —
64.107.56.0/21 2.0K
23.3%
AS6325 US Illinois Cicero
64.107.88.0/21 2.0K
0.1%
AS6325 US Illinois Lombard
64.107.176.0/21 2.0K
14.4%
AS6325 US — —
64.150.72.0/21 2.0K
12.2%
AS6325 US — —
64.150.88.0/21 2.0K
0.0%
AS6325 US — —
65.79.0.0/21 2.0K
7.2%
AS6325 US — —
65.79.112.0/21 2.0K
0.0%
AS6325 US — —
66.99.56.0/21 2.0K
7.5%
AS6325 US — —
66.99.248.0/21 2.0K
10.4%
AS6325 US Illinois Mundelein
66.158.32.0/21 2.0K
8.3%
AS6325 US Illinois Addison
66.158.48.0/21 2.0K
1.3%
AS6325 US — —
66.158.72.0/21 2.0K
16.7%
AS6325 US — —
207.63.56.0/21 2.0K
6.5%
AS6325 US Illinois Tuscola
207.63.112.0/21 2.0K
42.7%
AS6325 US — —
207.63.200.0/21 2.0K
12.2%
AS6325 US — —
209.174.48.0/21 2.0K
12.7%
AS6325 US — —
209.174.160.0/21 2.0K
28.9%
AS6325 US — —
209.175.32.0/21 2.0K
0.0%
AS6325 US — —
209.175.64.0/21 2.0K
37.0%
AS6325 US — —
209.175.160.0/21 2.0K
2.7%
AS6325 US — —
216.124.144.0/21 2.0K
24.7%
AS6325 US — —
216.125.224.0/21 2.0K
86.6%
AS6325 US — —
64.107.4.0/22 1.0K
0.0%
AS6325 US — —
64.107.40.0/22 1.0K
1.0%
AS6325 US Illinois Vernon Hills
64.107.84.0/22 1.0K
1.2%
AS6325 US Illinois Chicago
64.107.188.0/22 1.0K
1.4%
AS6325 US — —
64.150.84.0/22 1.0K
0.0%
AS6325 US — —
65.79.124.0/22 1.0K
52.7%
AS6325 US — —
66.99.0.0/22 1.0K
98.2%
AS6325 US — —
66.99.52.0/22 1.0K
27.4%
AS6325 US — —
66.99.244.0/22 1.0K
4.4%
AS6325 US — —
66.158.40.0/22 1.0K
2.1%
AS6325 US Illinois Chicago
66.158.60.0/22 1.0K
9.2%
AS6325 US — —
66.158.68.0/22 1.0K
8.6%
AS6325 US — —
207.63.48.0/22 1.0K
0.0%
AS6325 US — —
207.63.120.0/22 1.0K
76.6%
AS6325 US — —
207.63.192.0/22 1.0K
1.3%
AS6325 US — —
209.174.56.0/22 1.0K
15.4%
AS6325 US — —
209.174.168.0/22 1.0K
37.7%
AS6325 US — —
209.175.40.0/22 1.0K
0.0%
AS6325 US — —
209.175.76.0/22 1.0K
72.9%
AS6325 US — —
216.124.152.0/22 1.0K
0.0%
AS6325 US — —
216.125.32.0/22 1.0K
49.3%
AS6325 US Illinois Westmont
216.125.40.0/22 1.0K
88.3%
AS6325 US Illinois Westmont

Frequently Asked Questions

How many IP addresses does Illinois Century Network own?

Illinois Century Network controls 725.5K IPv4 addresses distributed across 157 CIDR ranges. The organization is registered in United States.

What ASNs does Illinois Century Network operate?

Illinois Century Network operates 1 Autonomous System. Each ASN represents an independently routed network that Illinois Century Network manages for internet traffic delivery.

What type of organization is Illinois Century Network?

Illinois Century Network is categorized as enterprise. This classification is based on the organization's primary use of its IP address allocations.

Last updated: 2026-11-09 05:24:09 UTC
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