216.21.1.0/24
🇺🇸CIDR
216.21.1.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇺🇸 United States
City
Chicago (Streeterville)
RIR
ARIN
Status
allocated
Allocated
1/13/2016
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 216.21.1.0/24 | AS63476SMS-ASSIST - SMS Assist, L.L.C. | No ROA | — | 6/1/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS13768 | RADB | maint-as13768 | 11/13/2023 |
Origin ASN
AS63476
SMS-ASSIST - SMS Assist, L.L.C.
Geolocation
API
Open https://api.ipctl.io/v1/prefix/216.21.1.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/216.21.1.0/24" | jq
External Links