Illinois Century Network
Cluster stats
| Netblocks | 86 |
| All fragments | 148 blocks across 13 clusters |
| Cluster ID | 191594705 |
| Registry | APNIC |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| Shared handles | clustered on 17 shared RIR contact/maintainer handles |
| Registry names | 5 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
2 weekly snapshots · JSON
86
0 netblocks since 2026-07-05
2026-07-05
peak 86
2026-07-06
IP Ranges (86)
showing 50 of 86 — see all — ⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 42.61.39.80/28 | ILLINOIS-SG | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 58.185.137.176/28 | ILLINOIS-SG | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 64.107.0.0/16 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 64.107.0.0/17 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 64.107.0.0/18 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 64.107.64.0/18 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 64.107.128.0/17 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 64.107.128.0/18 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 64.107.192.0/18 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 64.150.0.0/17 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 65.79.0.0/17 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 66.99.0.0/16 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 66.99.0.0/17 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 66.99.0.0/18 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 66.99.51.0/24 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 66.99.64.0/18 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 66.99.128.0/17 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 66.99.128.0/18 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 66.99.192.0/18 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 66.158.0.0/17 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 66.158.15.0/24 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 72.3.0.0/17 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 136.144.0.0/20 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 163.191.0.0/16 | State of Illinois | ARIN | ● high | |
| 163.191.0.0/17 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 163.191.0.0/21 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 163.191.8.0/22 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 163.191.12.0/23 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 163.191.14.0/24 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 163.191.128.0/17 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 163.191.162.0/23 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 163.191.164.0/22 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 163.191.168.0/21 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 163.191.176.0/21 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 163.191.184.0/22 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 163.191.188.0/23 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 163.191.192.0/19 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 163.191.224.0/19 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 203.126.100.112/28 | ILLINOIS-SG | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 206.71.10.9/32 | Illinois Century Network | PEERINGDB | ASSIGNED | ● high |
| 206.166.0.0/17 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 206.166.0.0/18 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 206.166.64.0/18 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 207.63.0.0/17 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 207.63.0.0/18 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 207.63.0.0/16 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 207.63.64.0/18 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 207.63.128.0/18 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 207.63.128.0/17 | Illinois Century Network | BGP | ANNOUNCED | ● high |
| 207.63.192.0/18 | Illinois Century Network | BGP | ANNOUNCED | ● high |
Network trust
what's this?
RPKI hygiene: F
how networks compare →
3.5%
of checked blocks have valid RPKI ROA coverage
(3 of 86)
No discrepancies found among checked blocks.
NIC Handles
AC642-AP
AS2068-AP
AS6325
AS6325
DOITA-ARIN
DOITA-ARIN
ICNAB-ARIN
ICNAB-ARIN
ILTN
MAINT-SG-SINGNET
MS1110-AP
RESER5-ARIN
+5 more