143.48.0.0/15
🇺🇸IPv4RIPEassignedNo ROA
CIDR
143.48.0.0/15
IP Version
IPv4
Addresses
131K
Mask
/15 (255.254.0.0)
Country
🇺🇸 United States
City
Cold Spring Harbor
RIR
RIPE
Status
assigned
Allocated
-
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| This prefix is not currently announced in BGP. See covering prefix below. | ||||
Covering Prefix
5 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 143.48.0.0/16 | AS13748CSHL - Cold Spring Harbor Laboratory | No ROA | — | 6/15/2026 |
| 143.48.0.0/17 | AS13748CSHL - Cold Spring Harbor Laboratory | No ROA | — | 6/15/2026 |
| 143.48.128.0/17 | AS13748CSHL - Cold Spring Harbor Laboratory | No ROA | — | 6/15/2026 |
| 143.48.210.0/24 | AS13748CSHL - Cold Spring Harbor Laboratory | No ROA | — | 6/15/2026 |
| 143.48.220.0/24 | AS13748CSHL - Cold Spring Harbor Laboratory | No ROA | — | 6/15/2026 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 143.48.0.0/16 | AS13748 | 🇺🇸US | allocated |
| 143.49.0.0/16 | reserved |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/143.48.0.0/15Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/143.48.0.0/15" | jq
External Links