216.221.128.0/20
🇺🇸CIDR
216.221.128.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇺🇸 United States
City
Seattle (Downtown Seattle)
RIR
ARIN
Status
allocated
Allocated
12/27/2007
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
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 216.221.128.0/21 | AS32312TELECOMSYS-PUBLIC - Telecommunication Systems, Inc. | No ROA | — | 6/1/2026 |
| 216.221.136.0/21 | AS32312TELECOMSYS-PUBLIC - Telecommunication Systems, Inc. | No ROA | — | 6/1/2026 |
Geolocation
Country🇺🇸United StatesUS
RegionWashington
CitySeattle (Downtown Seattle)
Coordinates47.6130, -122.3500 ↗
API
Open https://api.ipctl.io/v1/prefix/216.221.128.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/216.221.128.0/20" | jq
External Links