131.230.236.0/22
🇺🇸CIDR
131.230.236.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇺🇸 United States
City
Springfield
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 131.230.236.0/22 | AS15118SIUMED - Southern Illinois University - School of Medicine | No ROA | RADB | 5/31/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 131.230.0.0/16 | AS15119SOUTHERN-ILLINOIS-UNIVERSITY - Southern Illinois University Carbondale | No ROA | — | 5/31/2026 |
| 131.230.224.0/20 | AS15118SIUMED - Southern Illinois University - School of Medicine | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS15118 | RADB | MAINT-BLUEBIRD | 11/13/2023 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/131.230.236.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/131.230.236.0/22" | jq
External Links