143.48.220.0/24
🇺🇸CIDR
143.48.220.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇺🇸 United States
City
Washington D.C.
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 143.48.220.0/24 | AS13748CSHL - Cold Spring Harbor Laboratory | No ROA | — | 6/1/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 143.48.0.0/16 | AS13748CSHL - Cold Spring Harbor Laboratory | No ROA | — | 6/1/2026 |
| 143.48.128.0/17 | AS13748CSHL - Cold Spring Harbor Laboratory | No ROA | — | 6/1/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS46887 | RADB | MAINT-AS27506 | 9/3/2025 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/143.48.220.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/143.48.220.0/24" | jq
External Links