Cook County
Data as of 2026-10-25
BGP inherited
This organisation
| Netblocks | 7 · 2,048 IPv4 addresses |
| Record ID | 255827234 |
| Registry | BGP |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 6 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
IP Ranges (7)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 12.218.238.0/23 | Cook County | BGP | ANNOUNCED | ● high |
| 66.99.240.0/23 | Cook County | BGP | ANNOUNCED | ● high |
| 162.217.184.0/22 | Cook County | BGP | ANNOUNCED | ● high |
| 162.217.184.0/24 | Cook County | BGP | ANNOUNCED | ● high |
| 162.217.185.0/24 | Cook County | BGP | ANNOUNCED | ● high |
| 162.217.186.0/24 | Cook County | BGP | ANNOUNCED | ● high |
| 162.217.187.0/24 | Cook County | BGP | ANNOUNCED | ● high |
Footprint over time
18 weekly snapshots · JSON
8
-7 netblocks since 2026-07-05
2026-07-05
peak 23
2026-10-25
Network trust
what's this?
RPKI hygiene: B
how networks compare →
87.5%
of checked blocks have valid RPKI ROA coverage
(7 of 8)
No discrepancies found among checked blocks.
NIC Handles
AS46286
COOKC-2
NCCAD1-ARIN
NCCAD1-ARIN
NCCAD1-ARIN
NCCAD1-ARIN