204.228.64.0/18
🇺🇸CIDR
204.228.64.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇺🇸 United States
City
New York
RIR
RIPE
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 204.228.64.0/18 | AS209CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC | No ROA | — | 6/1/2026 |
Covering Prefix
13 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 204.228.96.0/19 | AS30136AD12 - Adams 12 | Valid | — | 6/1/2026 |
| 204.228.68.0/22 | AS62671UNIVERSITY-OF-COLORADO-SYSTEM - ECS-Infrastructure | Valid | — | 6/1/2026 |
| 204.228.80.0/24 | AS104COLORADO-AS - University of Colorado at Boulder | No ROA | — | 6/1/2026 |
| 204.228.84.0/24 | AS17207COLOR-COLL - Colorado College | Valid | — | 6/1/2026 |
| 204.228.85.0/24 | AS17207COLOR-COLL - Colorado College | Valid | — | 6/1/2026 |
| 204.228.86.0/24 | AS17207COLOR-COLL - Colorado College | Valid | — | 6/1/2026 |
| 204.228.87.0/24 | AS17207COLOR-COLL - Colorado College | Valid | — | 6/1/2026 |
| 204.228.96.0/24 | AS30136AD12 - Adams 12 | Valid | — | 6/1/2026 |
| 204.228.97.0/24 | AS30136AD12 - Adams 12 | Valid | — | 6/1/2026 |
| 204.228.64.0/24 | AS32920ITHAKA-AS32920 - ITHAKA Harbors, Inc. | No ROA | — | 6/1/2026 |
| 204.228.81.0/24 | AS33652CMCS - Comcast Cable Communications, LLC | No ROA | — | 6/1/2026 |
| 204.228.69.0/24 | AS62671UNIVERSITY-OF-COLORADO-SYSTEM - ECS-Infrastructure | Valid | — | 6/1/2026 |
| 204.228.68.0/24 | AS62671UNIVERSITY-OF-COLORADO-SYSTEM - ECS-Infrastructure | Valid | — | 6/1/2026 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 204.228.96.0/19 | AS30136 | 🇺🇸US | allocated |
| 204.228.72.0/21 | 🇺🇸US | allocated | |
| 204.228.84.0/22 | 🇺🇸US | allocated | |
| 204.228.92.0/22 | 🇺🇸US | allocated | |
| 204.228.68.0/22 | AS62671 | 🇺🇸US | allocated |
| 204.228.90.0/23 | 🇺🇸US | allocated | |
| 204.228.66.0/23 | 🇺🇸US | allocated | |
| 204.228.82.0/23 | 🇺🇸US | allocated | |
| 204.228.80.0/24 | AS104 | 🇺🇸US | allocated |
| 204.228.65.0/24 | 🇺🇸US | allocated | |
| 204.228.81.0/24 | AS33652 | 🇺🇸US | allocated |
| 204.228.89.0/24 | 🇺🇸US | allocated | |
| 204.228.64.0/24 | AS32920 | 🇺🇸US | allocated |
| 204.228.88.0/24 | 🇺🇸US | allocated |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/204.228.64.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/204.228.64.0/18" | jq
External Links