209.166.128.0/18
🇺🇸CIDR
209.166.128.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇺🇸 United States
City
El Centro
RIR
ARIN
Status
allocated
Allocated
12/17/1997
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.166.128.0/18 | AS17054EXPEDIENT - Expedient | Valid | RADB | 5/31/2026 |
Covering Prefix
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.166.159.0/24 | AS17054EXPEDIENT - Expedient | Valid | — | 5/31/2026 |
| 209.166.148.0/24 | AS36298INFOCISION - InfoCision Management Corporation | Valid | — | 5/31/2026 |
| 209.166.149.0/24 | AS36298INFOCISION - InfoCision Management Corporation | Valid | — | 5/31/2026 |
Origin ASN
AS17054
EXPEDIENT - Expedient
Geolocation
API
Open https://api.ipctl.io/v1/prefix/209.166.128.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/209.166.128.0/18" | jq
External Links