Skip to main content
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 Round Lake
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
29.8%
Illinois Century Network US Illinois Maywood
66.99.64.0/18 16.4K
34.8%
Illinois Century Network US Illinois Hanover Park
66.99.128.0/18 16.4K
33.1%
Illinois Century Network US Illinois Robinson
207.63.128.0/18 16.4K
38.5%
Illinois Century Network US Illinois Oak Lawn
209.174.64.0/18 16.4K
74.5%
Illinois Century Network US Illinois Sterling
209.174.192.0/18 16.4K
47.9%
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
52.9%
Illinois Century Network US Illinois Canton
216.125.64.0/18 16.4K
24.9%
Illinois Century Network US Illinois Elgin
64.107.96.0/19 8.2K
35.3%
Illinois Century Network US Illinois Decatur
64.107.128.0/19 8.2K
20.6%
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
9.6%
Illinois Century Network US Illinois Mount Prospect
65.79.64.0/19 8.2K
0.3%
Illinois Century Network US — —
66.99.192.0/19 8.2K
26.9%
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
56.2%
Illinois Century Network US — —
207.63.0.0/19 8.2K
99.0%
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 Oak Lawn
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
39.2%
Illinois Century Network US Illinois Romeoville
209.175.96.0/19 8.2K
40.7%
Illinois Century Network US Illinois Elmhurst
209.175.128.0/19 8.2K
93.0%
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
34.6%
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 Pana
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
16.5%
Illinois Century Network US Illinois Oak Park
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
6.1%
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 Chicago
66.158.80.0/20 4.1K
21.7%
Illinois Century Network US Illinois Wilmette
207.63.32.0/20 4.1K
45.7%
Illinois Century Network US Illinois Manteno
207.63.96.0/20 4.1K
60.3%
Illinois Century Network US Illinois Elgin
207.63.208.0/20 4.1K
55.2%
Illinois Century Network US Illinois Roselle
209.174.32.0/20 4.1K
69.4%
Illinois Century Network US — —
209.174.176.0/20 4.1K
24.3%
Illinois Century Network US Illinois Champaign
209.175.48.0/20 4.1K
76.9%
Illinois Century Network US — —
209.175.80.0/20 4.1K
50.9%
Illinois Century Network US Illinois Park Ridge
209.175.176.0/20 4.1K
2.5%
Illinois Century Network US — —
216.124.128.0/20 4.1K
1.8%
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
23.2%
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
12.3%
Illinois Century Network US — —
64.150.88.0/21 2.0K
0.0%
Illinois Century Network US — —
65.79.0.0/21 2.0K
7.2%
Illinois Century Network US — —
65.79.112.0/21 2.0K
0.0%
Illinois Century Network US — —
66.99.56.0/21 2.0K
7.4%
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
8.2%
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
16.3%
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
42.8%
Illinois Century Network US — —
207.63.200.0/21 2.0K
12.2%
Illinois Century Network US — —
209.174.48.0/21 2.0K
12.8%
Illinois Century Network US — —
209.174.160.0/21 2.0K
28.9%
Illinois Century Network US — —
209.175.32.0/21 2.0K
0.0%
Illinois Century Network US — —
209.175.64.0/21 2.0K
37.2%
Illinois Century Network US — —
209.175.160.0/21 2.0K
2.7%
Illinois Century Network US — —
216.124.144.0/21 2.0K
24.7%
Illinois Century Network US — —
216.125.224.0/21 2.0K
86.8%
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 Libertyville
64.107.84.0/22 1.0K
1.2%
Illinois Century Network US Illinois Chicago
64.107.188.0/22 1.0K
1.6%
Illinois Century Network US — —
64.150.84.0/22 1.0K
0.0%
Illinois Century Network US — —
65.79.124.0/22 1.0K
52.1%
Illinois Century Network US — —
66.99.0.0/22 1.0K
97.9%
Illinois Century Network US — —
66.99.52.0/22 1.0K
27.2%
Illinois Century Network US — —
66.99.244.0/22 1.0K
4.4%
Illinois Century Network US — —
66.158.40.0/22 1.0K
2.1%
Illinois Century Network US Illinois Grayslake
66.158.60.0/22 1.0K
8.8%
Illinois Century Network US — —
66.158.68.0/22 1.0K
8.5%
Illinois Century Network US — —
207.63.48.0/22 1.0K
0.0%
Illinois Century Network US — —
207.63.120.0/22 1.0K
76.9%
Illinois Century Network US — —
207.63.192.0/22 1.0K
1.3%
Illinois Century Network US — —
209.174.56.0/22 1.0K
15.3%
Illinois Century Network US — —
209.174.168.0/22 1.0K
38.2%
Illinois Century Network US — —
209.175.40.0/22 1.0K
0.0%
Illinois Century Network US — —
209.175.76.0/22 1.0K
73.3%
Illinois Century Network US — —
216.124.152.0/22 1.0K
0.0%
Illinois Century Network US — —
216.125.32.0/22 1.0K
49.6%
Illinois Century Network US Illinois Lockport
216.125.40.0/22 1.0K
88.5%
Illinois Century Network US Illinois Lockport

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 36,788 2026-11-13 15:31:06
66.99.64.0/18 33,652 2026-11-13 15:31:06
66.99.128.0/17 33,566 2026-11-13 15:31:06
209.7.128.0/18 33,485 2026-11-13 15:31:06
209.7.0.0/18 33,406 2026-11-13 15:31:06
66.99.128.0/18 33,036 2026-11-13 15:31:06
66.158.0.0/17 33,009 2026-11-13 15:31:06
66.99.192.0/18 32,618 2026-11-13 15:31:06
65.79.0.0/17 32,490 2026-11-13 15:31:06
64.150.0.0/17 31,858 2026-11-13 15:31:06
64.107.64.0/18 31,665 2026-11-13 15:31:06
64.107.192.0/18 31,315 2026-11-13 15:31:06
64.107.128.0/18 31,119 2026-11-13 15:31:06
64.107.0.0/18 31,103 2026-11-13 15:31:06
64.107.128.0/17 30,818 2026-11-13 15:31:06
216.125.0.0/17 29,638 2026-11-13 15:32:29
64.107.0.0/17 29,524 2026-11-13 15:31:06
209.175.64.0/18 28,951 2026-11-13 15:32:29
209.175.192.0/18 25,625 2026-11-13 15:32:29
209.175.128.0/17 25,603 2026-11-13 15:32:29
209.175.128.0/18 25,580 2026-11-13 15:32:29
209.174.0.0/17 24,774 2026-11-13 15:31:06
72.3.0.0/17 24,735 2026-11-13 15:31:06
207.63.192.0/18 24,637 2026-11-13 15:31:06
207.63.128.0/18 23,830 2026-11-13 15:31:06
207.63.64.0/18 23,752 2026-11-13 15:31:06
207.63.128.0/17 23,712 2026-11-13 15:31:06
207.63.0.0/18 23,622 2026-11-13 15:31:06
209.175.0.0/16 23,492 2026-11-13 15:32:29
209.175.0.0/17 23,421 2026-11-13 15:32:29
209.175.0.0/18 23,332 2026-11-13 15:32:29
207.63.0.0/17 23,129 2026-11-13 15:32:29
163.191.192.0/19 21,631 2026-09-24 23:21:56
206.166.0.0/18 21,411 2026-11-13 15:31:06
206.166.64.0/18 21,378 2026-11-13 15:31:06
206.166.0.0/17 21,315 2026-11-13 15:31:06
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 19,393 2026-11-13 15:32:29
216.124.128.0/17 18,649 2026-11-13 15:32:29
216.124.192.0/18 18,503 2026-11-13 15:32:29
216.125.128.0/17 17,240 2026-11-13 15:32:29
64.107.0.0/16 16,814 2026-11-13 15:31:06
216.124.0.0/16 16,776 2026-11-13 15:31:06
66.99.0.0/16 16,358 2026-11-13 15:31:06
66.99.0.0/18 16,325 2026-11-13 15:31:06
66.99.0.0/17 16,311 2026-11-13 15:31:06
216.125.192.0/18 16,209 2026-11-13 15:32:29

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: 2026-11-13 15:54:05 UTC
Share