166.91.0.0/16
🇺🇸CIDR
166.91.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Washington D.C. (Northeast Washington)
RIR
ARIN
Status
allocated
Allocated
11/18/1993
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 166.91.0.0/16 | AS33084DC-NET - DC-Net | No ROA | — | 5/30/2026 |
Covering Prefix
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 166.91.2.0/23 | AS33084DC-NET - DC-Net | No ROA | — | 5/30/2026 |
| 166.91.253.0/24 | AS14072WASH-DC-CITY-GOVT - Government of the District of Columbia | No ROA | — | 5/30/2026 |
| 166.91.248.0/24 | AS33084DC-NET - DC-Net | No ROA | — | 5/30/2026 |
Origin ASN
AS33084
DC-NET - DC-Net
Geolocation
Country🇺🇸United StatesUS
RegionDistrict of Columbia
CityWashington D.C. (Northeast Washington)
Coordinates38.9010, -77.0084 ↗
API
Open https://api.ipctl.io/v1/prefix/166.91.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/166.91.0.0/16" | jq
External Links