209.147.128.0/18
🇺🇸CIDR
209.147.128.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇺🇸 United States
City
Phoenix (Good Samaritan)
RIR
ARIN
Status
allocated
Allocated
10/13/1997
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.147.128.0/18 | AS2900WN-AZ-AS - Arizona Tri University Network | No ROA | RADB | 5/31/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.147.128.0/19 | AS2900WN-AZ-AS - Arizona Tri University Network | No ROA | — | 5/31/2026 |
| 209.147.160.0/19 | AS2900WN-AZ-AS - Arizona Tri University Network | No ROA | — | 5/31/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/209.147.128.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/209.147.128.0/18" | jq
External Links