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WorldIP.io
Autonomous System

AS6325

Illinois Century Network

Announced IPs
725,504
CIDR prefixes
157
ASN
AS6325

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 →

Network profile

Source: PeeringDB →
Network type NSP
Traffic level 20-50Gbps
Geographic scope North America
Traffic ratio Mostly Inbound
Peering policy Open
IRR record AS6325:AS-ICN

Present at 2 internet exchanges: FD-IX - St. Louis: Main, Equinix Chicago

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
163.191.0.0/16 65.5K
1.0%
Illinois Century Network US Illinois Springfield
209.7.0.0/16 65.5K
55.7%
Illinois Century Network US Illinois Lake Zurich
72.3.0.0/17 32.8K
0.0%
Illinois Century Network US — —
206.166.0.0/17 32.8K
24.2%
Illinois Century Network US Illinois Freeport
216.124.0.0/17 32.8K
32.1%
Illinois Century Network US Illinois Wilmette
64.107.192.0/18 16.4K
30.0%
Illinois Century Network US Illinois Melrose Park
66.99.64.0/18 16.4K
35.0%
Illinois Century Network US Illinois Hanover Park
66.99.128.0/18 16.4K
33.2%
Illinois Century Network US Illinois Robinson
207.63.128.0/18 16.4K
38.5%
Illinois Century Network US Illinois Roselle
209.174.64.0/18 16.4K
74.4%
Illinois Century Network US Illinois Sterling
209.174.192.0/18 16.4K
47.8%
Illinois Century Network US Illinois O'Fallon
209.175.192.0/18 16.4K
33.9%
Illinois Century Network US Illinois Champaign
216.124.192.0/18 16.4K
53.0%
Illinois Century Network US Illinois Peoria
216.125.64.0/18 16.4K
24.9%
Illinois Century Network US Illinois Elgin
64.107.96.0/19 8.2K
35.6%
Illinois Century Network US Illinois Decatur
64.107.128.0/19 8.2K
20.7%
Illinois Century Network US Illinois Waukegan
64.150.32.0/19 8.2K
0.8%
Illinois Century Network US Illinois North Chicago
64.150.96.0/19 8.2K
0.0%
Illinois Century Network US — —
65.79.32.0/19 8.2K
9.5%
Illinois Century Network US Illinois Chicago
65.79.64.0/19 8.2K
0.3%
Illinois Century Network US — —
66.99.192.0/19 8.2K
27.1%
Illinois Century Network US Illinois Peoria
66.158.0.0/19 8.2K
0.0%
Illinois Century Network US Illinois Springfield
66.158.96.0/19 8.2K
56.4%
Illinois Century Network US — —
207.63.0.0/19 8.2K
99.1%
Illinois Century Network US Illinois Dixon
207.63.64.0/19 8.2K
0.8%
Illinois Century Network US Illinois Chicago
207.63.224.0/19 8.2K
61.1%
Illinois Century Network US Illinois Roselle
209.174.0.0/19 8.2K
22.3%
Illinois Century Network US — —
209.174.128.0/19 8.2K
34.3%
Illinois Century Network US Illinois Quincy
209.175.0.0/19 8.2K
39.4%
Illinois Century Network US Illinois Romeoville
209.175.96.0/19 8.2K
40.7%
Illinois Century Network US Illinois Arlington Heights
209.175.128.0/19 8.2K
92.9%
Illinois Century Network US — —
216.124.160.0/19 8.2K
92.9%
Illinois Century Network US Illinois Winnebago
216.125.0.0/19 8.2K
34.7%
Illinois Century Network US Illinois Naperville
216.125.160.0/19 8.2K
75.4%
Illinois Century Network US Illinois Joliet
216.125.192.0/19 8.2K
23.3%
Illinois Century Network US Illinois Altamont
64.107.16.0/20 4.1K
0.0%
Illinois Century Network US — —
64.107.64.0/20 4.1K
5.9%
Illinois Century Network US Illinois Chicago
64.107.160.0/20 4.1K
16.8%
Illinois Century Network US Illinois Addison
64.150.16.0/20 4.1K
0.0%
Illinois Century Network US — —
65.79.16.0/20 4.1K
0.4%
Illinois Century Network US — —
65.79.96.0/20 4.1K
0.5%
Illinois Century Network US — —
66.99.16.0/20 4.1K
6.2%
Illinois Century Network US Illinois Joliet
66.99.32.0/20 4.1K
6.8%
Illinois Century Network US Illinois River Grove
66.99.224.0/20 4.1K
5.4%
Illinois Century Network US Illinois Forest Park
66.158.80.0/20 4.1K
22.1%
Illinois Century Network US Illinois Wilmette
207.63.32.0/20 4.1K
46.0%
Illinois Century Network US Illinois Manteno
207.63.96.0/20 4.1K
60.3%
Illinois Century Network US Illinois Lake Villa
207.63.208.0/20 4.1K
55.4%
Illinois Century Network US Illinois Roselle
209.174.32.0/20 4.1K
69.2%
Illinois Century Network US — —
209.174.176.0/20 4.1K
24.4%
Illinois Century Network US Illinois Champaign
209.175.48.0/20 4.1K
76.8%
Illinois Century Network US — —
209.175.80.0/20 4.1K
50.6%
Illinois Century Network US Illinois Park Ridge
209.175.176.0/20 4.1K
2.6%
Illinois Century Network US — —
216.124.128.0/20 4.1K
1.9%
Illinois Century Network US Illinois Charleston
216.125.128.0/20 4.1K
31.4%
Illinois Century Network US — —
64.107.32.0/21 2.0K
0.0%
Illinois Century Network US — —
64.107.56.0/21 2.0K
23.3%
Illinois Century Network US Illinois Cicero
64.107.88.0/21 2.0K
0.1%
Illinois Century Network US Illinois Lombard
64.107.176.0/21 2.0K
14.4%
Illinois Century Network US — —
64.150.72.0/21 2.0K
12.4%
Illinois Century Network US — —
64.150.88.0/21 2.0K
0.0%
Illinois Century Network US — —
65.79.0.0/21 2.0K
7.3%
Illinois Century Network US — —
65.79.112.0/21 2.0K
0.0%
Illinois Century Network US — —
66.99.56.0/21 2.0K
7.5%
Illinois Century Network US — —
66.99.248.0/21 2.0K
10.4%
Illinois Century Network US Illinois Mundelein
66.158.32.0/21 2.0K
8.3%
Illinois Century Network US Illinois Addison
66.158.48.0/21 2.0K
1.3%
Illinois Century Network US — —
66.158.72.0/21 2.0K
16.6%
Illinois Century Network US — —
207.63.56.0/21 2.0K
6.4%
Illinois Century Network US Illinois Tuscola
207.63.112.0/21 2.0K
42.9%
Illinois Century Network US — —
207.63.200.0/21 2.0K
12.1%
Illinois Century Network US — —
209.174.48.0/21 2.0K
12.9%
Illinois Century Network US — —
209.174.160.0/21 2.0K
28.8%
Illinois Century Network US — —
209.175.32.0/21 2.0K
0.0%
Illinois Century Network US — —
209.175.64.0/21 2.0K
37.5%
Illinois Century Network US — —
209.175.160.0/21 2.0K
2.7%
Illinois Century Network US — —
216.124.144.0/21 2.0K
24.9%
Illinois Century Network US — —
216.125.224.0/21 2.0K
86.7%
Illinois Century Network US — —
64.107.4.0/22 1.0K
0.0%
Illinois Century Network US — —
64.107.40.0/22 1.0K
1.0%
Illinois Century Network US Illinois Vernon Hills
64.107.84.0/22 1.0K
1.2%
Illinois Century Network US Illinois Chicago
64.107.188.0/22 1.0K
1.5%
Illinois Century Network US — —
64.150.84.0/22 1.0K
0.0%
Illinois Century Network US — —
65.79.124.0/22 1.0K
52.6%
Illinois Century Network US — —
66.99.0.0/22 1.0K
98.7%
Illinois Century Network US — —
66.99.52.0/22 1.0K
27.3%
Illinois Century Network US — —
66.99.244.0/22 1.0K
4.3%
Illinois Century Network US — —
66.158.40.0/22 1.0K
2.1%
Illinois Century Network US Illinois Chicago
66.158.60.0/22 1.0K
9.1%
Illinois Century Network US — —
66.158.68.0/22 1.0K
8.6%
Illinois Century Network US — —
207.63.48.0/22 1.0K
0.0%
Illinois Century Network US — —
207.63.120.0/22 1.0K
76.3%
Illinois Century Network US — —
207.63.192.0/22 1.0K
1.2%
Illinois Century Network US — —
209.174.56.0/22 1.0K
15.3%
Illinois Century Network US — —
209.174.168.0/22 1.0K
37.9%
Illinois Century Network US — —
209.175.40.0/22 1.0K
0.0%
Illinois Century Network US — —
209.175.76.0/22 1.0K
73.2%
Illinois Century Network US — —
216.124.152.0/22 1.0K
0.0%
Illinois Century Network US — —
216.125.32.0/22 1.0K
49.3%
Illinois Century Network US Illinois Westmont
216.125.40.0/22 1.0K
88.7%
Illinois Century Network US Illinois Westmont

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS6325 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
66.158.15.0/24 49,772 2026-09-24 23:21:56
216.124.0.0/17 36,073 2026-11-06 02:28:37
66.99.64.0/18 32,908 2026-11-06 02:28:37
66.99.128.0/17 32,856 2026-11-06 02:28:37
209.7.128.0/18 32,740 2026-11-06 02:26:48
209.7.0.0/18 32,705 2026-11-06 02:26:48
66.99.128.0/18 32,324 2026-11-06 02:28:37
66.158.0.0/17 32,273 2026-11-06 02:28:08
66.99.192.0/18 31,919 2026-11-06 02:28:37
65.79.0.0/17 31,751 2026-11-06 02:28:37
64.150.0.0/17 31,118 2026-11-06 02:28:37
64.107.64.0/18 30,964 2026-11-06 02:28:37
64.107.192.0/18 30,570 2026-11-06 02:28:37
64.107.0.0/18 30,396 2026-11-06 02:26:48
64.107.128.0/18 30,373 2026-11-06 02:26:48
64.107.128.0/17 30,117 2026-11-06 02:28:37
216.125.0.0/17 28,895 2026-11-06 02:28:08
64.107.0.0/17 28,822 2026-11-06 02:28:37
209.175.64.0/18 28,246 2026-11-06 02:26:48
209.175.192.0/18 24,877 2026-11-06 02:26:48
209.175.128.0/17 24,859 2026-11-06 02:26:48
209.175.128.0/18 24,836 2026-11-06 02:26:48
209.174.0.0/17 24,069 2026-11-06 02:28:37
72.3.0.0/17 23,992 2026-11-06 02:28:37
207.63.192.0/18 23,901 2026-11-06 02:28:37
207.63.128.0/18 23,097 2026-11-06 02:28:37
207.63.64.0/18 23,019 2026-11-06 02:28:37
207.63.128.0/17 22,976 2026-11-06 02:28:37
207.63.0.0/18 22,923 2026-11-06 02:28:37
209.175.0.0/16 22,786 2026-11-06 02:26:48
209.175.0.0/17 22,716 2026-11-06 02:26:48
209.175.0.0/18 22,635 2026-11-06 02:26:48
207.63.0.0/17 22,418 2026-11-06 02:28:37
163.191.192.0/19 21,631 2026-09-24 23:21:56
206.166.0.0/18 20,726 2026-11-06 02:28:37
206.166.64.0/18 20,694 2026-11-06 02:28:37
206.166.0.0/17 20,630 2026-11-06 02:28:37
163.191.224.0/19 20,007 2026-09-24 23:21:56
66.99.51.0/24 19,886 2026-09-22 00:16:29
163.191.188.0/23 19,665 2026-09-24 23:21:56
216.124.128.0/18 18,658 2026-11-06 02:28:08
216.124.128.0/17 17,895 2026-11-06 02:28:08
216.124.192.0/18 17,768 2026-11-06 02:28:08
216.125.128.0/17 16,499 2026-11-06 02:28:08
64.107.0.0/16 16,119 2026-11-06 02:28:08
216.124.0.0/16 16,073 2026-11-06 02:28:08
66.99.0.0/16 15,624 2026-11-06 02:28:08
66.99.0.0/18 15,591 2026-11-06 02:28:08
66.99.0.0/17 15,577 2026-11-06 02:28:08
216.125.0.0/16 15,496 2026-11-06 02:28:08

Showing top 50 of 83 announced prefixes by sample volume.

Frequently Asked Questions

What is AS6325?

AS6325 is an Autonomous System Number assigned to Illinois Century Network. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS6325 announce?

AS6325 announces 725.5K IPv4 addresses distributed across 157 routed CIDR prefixes. The network is registered in United States.

Who operates AS6325?

AS6325 is operated by Illinois Century Network. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS6325 registered in?

AS6325 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-11-06 02:39:05 UTC
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