209.186.0.0/15
🇺🇸CIDR
209.186.0.0/15
IP Version
IPv4
Addresses
131K
Mask
/15 (255.254.0.0)
Country
🇺🇸 United States
City
Chicago (Goose Island)
RIR
ARIN
Status
allocated
Allocated
12/11/1997
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.186.0.0/15 | AS7018ATT-INTERNET4 - AT&T Enterprises, LLC | No ROA | — | 6/13/2026 |
Covering Prefix
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.186.254.0/24 | AS11273FDCSGNET - Fiserv Solutions, LLC | No ROA | — | 6/13/2026 |
| 209.186.78.0/24 | AS214760LS4KDC LS4KDC LIMITED | No ROA | — | 6/13/2026 |
| 209.186.79.0/24 | AS214760LS4KDC LS4KDC LIMITED | No ROA | — | 6/13/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/209.186.0.0/15Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/209.186.0.0/15" | jq
External Links