128.148.0.0/21
🇺🇸CIDR
128.148.0.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Providence (College Hill)
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 128.148.0.0/21 | AS11078BROWN - Brown University | No ROA | RADB | 5/31/2026 |
Origin ASN
AS11078
BROWN - Brown University
Geolocation
Country🇺🇸United StatesUS
RegionRhode Island
CityProvidence (College Hill)
Coordinates41.8269, -71.3996 ↗
API
Open https://api.ipctl.io/v1/prefix/128.148.0.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/128.148.0.0/21" | jq
External Links