155.99.0.0/16
🇺🇸CIDR
155.99.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Salt Lake City (Downtown)
RIR
ARIN
Status
allocated
Allocated
11/1/1991
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 155.99.0.0/16 | AS17055UTAH - University of Utah | No ROA | RADB | 5/30/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 155.99.144.0/24 | AS17055UTAH - University of Utah | No ROA | — | 5/30/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS17055 | RADB | MAINT-AS210 | 11/13/2023 |
Origin ASN
AS17055
UTAH - University of Utah
Geolocation
API
Open https://api.ipctl.io/v1/prefix/155.99.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/155.99.0.0/16" | jq
External Links