209.51.16.0/20
🇺🇸CIDR
209.51.16.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇺🇸 United States
City
Dallas (Dallas Downtown Historic District)
RIR
ARIN
Status
allocated
Allocated
4/11/1997
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
5 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 209.51.17.0/24 | AS396936HTH2 - HTH | No ROA | — | 5/31/2026 |
| 209.51.19.0/24 | AS396936HTH2 - HTH | No ROA | — | 5/31/2026 |
| 209.51.22.0/24 | AS396936HTH2 - HTH | No ROA | — | 5/31/2026 |
| 209.51.16.0/24 | AS396940HTH1 - HTH | No ROA | — | 5/31/2026 |
| 209.51.28.0/24 | AS396940HTH1 - HTH | No ROA | — | 5/31/2026 |
Origin ASN
AS11154
Geolocation
Country🇺🇸United StatesUS
RegionTexas
CityDallas (Dallas Downtown Historic District)
Coordinates32.7812, -96.8021 ↗
API
Open https://api.ipctl.io/v1/prefix/209.51.16.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/209.51.16.0/20" | jq
External Links