161.55.0.0/16
🇺🇸CIDR
161.55.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Boulder
RIR
ARIN
Status
allocated
Allocated
6/1/1992
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 161.55.0.0/16 | AS3477NOAA-NWAVE - National Oceanic and Atmospheric Administration | Valid | ARIN | 6/1/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 161.55.56.0/23 | AS3477NOAA-NWAVE - National Oceanic and Atmospheric Administration | Valid | — | 6/1/2026 |
| 161.55.224.0/24 | AS3477NOAA-NWAVE - National Oceanic and Atmospheric Administration | Valid | — | 6/1/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/161.55.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/161.55.0.0/16" | jq
External Links