151.154.128.0/20
🇺🇸CIDR
151.154.128.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇺🇸 United States
City
Chicago (Loop)
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 151.154.128.0/20 | AS26551SARGENT-AND-LUNDY - Sargent & Lundy Engineers | No ROA | — | 5/31/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 151.154.0.0/16 | AS26551SARGENT-AND-LUNDY - Sargent & Lundy Engineers | No ROA | — | 5/31/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/151.154.128.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/151.154.128.0/20" | jq
External Links