156.78.0.0/16
🇺🇸IPv4ARINallocatedNo ROA
CIDR
156.78.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Atlanta
RIR
ARIN
Status
allocated
Allocated
12/19/1991
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
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 156.78.128.0/23 | AS18862NCS-HEALTHCARE - Omnicare, Inc. | No ROA | — | 6/15/2026 |
| 156.78.130.0/23 | AS18862NCS-HEALTHCARE - Omnicare, Inc. | No ROA | — | 6/15/2026 |
| 156.78.0.0/24 | AS2386INS-AS - AT&T Enterprises, LLC | No ROA | — | 6/15/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/156.78.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/156.78.0.0/16" | jq
External Links