204.11.72.0/21
🇺🇸CIDR
204.11.72.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Champaign
RIR
ARIN
Status
allocated
Allocated
1/30/2009
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 204.11.72.0/21 | AS25660CTC - Fidium | No ROA | RADB | 5/31/2026 |
Covering Prefix
4 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 204.11.72.0/22 | AS25660CTC - Fidium | No ROA | — | 5/31/2026 |
| 204.11.76.0/22 | AS25660CTC - Fidium | No ROA | — | 5/31/2026 |
| 204.11.72.0/24 | AS25660CTC - Fidium | No ROA | — | 5/31/2026 |
| 204.11.76.0/24 | AS25660CTC - Fidium | No ROA | — | 5/31/2026 |
Origin ASN
AS25660
CTC - Fidium
Geolocation
API
Open https://api.ipctl.io/v1/prefix/204.11.72.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/204.11.72.0/21" | jq
External Links