209.191.172.0/24
🇺🇸CIDR
209.191.172.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇺🇸 United States
City
Chicago (West Loop)
RIR
ARIN
Status
allocated
Allocated
2/11/1998
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.191.172.0/24 | AS19812RADIANZ-NUTLEY - BT Americas, Inc | No ROA | — | 6/1/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.191.172.0/22 | AS13789INTERNAP-BLK3 - Unitas Global | No ROA | — | 6/1/2026 |
Origin ASN
AS19812
RADIANZ-NUTLEY - BT Americas, Inc
Geolocation
API
Open https://api.ipctl.io/v1/prefix/209.191.172.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/209.191.172.0/24" | jq
External Links