151.154.0.0/16
🇺🇸CIDR
151.154.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Chicago (Loop)
RIR
ARIN
Status
allocated
Allocated
7/30/1991
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 151.154.0.0/16 | AS26551SARGENT-AND-LUNDY - Sargent & Lundy Engineers | No ROA | — | 5/30/2026 |
Covering Prefix
4 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 151.154.128.0/20 | AS26551SARGENT-AND-LUNDY - Sargent & Lundy Engineers | No ROA | — | 5/30/2026 |
| 151.154.84.0/22 | AS26551SARGENT-AND-LUNDY - Sargent & Lundy Engineers | No ROA | — | 5/30/2026 |
| 151.154.103.0/24 | AS26551SARGENT-AND-LUNDY - Sargent & Lundy Engineers | No ROA | — | 5/30/2026 |
| 151.154.223.0/24 | AS26551SARGENT-AND-LUNDY - Sargent & Lundy Engineers | No ROA | — | 5/30/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/151.154.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/151.154.0.0/16" | jq
External Links