140.221.0.0/16
🇺🇸IPv4ARINallocated RPKI Valid
CIDR
140.221.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Lemont
RIR
ARIN
Status
allocated
Allocated
6/13/1990
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
8 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 140.221.0.0/18 | AS683ARGONNE-AS - Argonne National Laboratory | Valid | — | 6/15/2026 |
| 140.221.112.0/20 | AS683ARGONNE-AS - Argonne National Laboratory | Valid | — | 6/15/2026 |
| 140.221.80.0/20 | AS683ARGONNE-AS - Argonne National Laboratory | Valid | — | 6/15/2026 |
| 140.221.72.0/21 | AS683ARGONNE-AS - Argonne National Laboratory | Valid | — | 6/15/2026 |
| 140.221.70.0/23 | AS683ARGONNE-AS - Argonne National Laboratory | Valid | — | 6/15/2026 |
| 140.221.96.0/23 | AS683ARGONNE-AS - Argonne National Laboratory | Valid | — | 6/15/2026 |
| 140.221.68.0/24 | AS683ARGONNE-AS - Argonne National Laboratory | Valid | — | 6/15/2026 |
| 140.221.69.0/24 | AS683ARGONNE-AS - Argonne National Laboratory | Valid | — | 6/15/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/140.221.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/140.221.0.0/16" | jq
External Links