204.120.0.0/16
🇺🇸CIDR
204.120.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Cleveland
RIR
ARIN
Status
allocated
Allocated
8/12/1994
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 204.120.0.0/16 | AS174COGENT-174 - Cogent Communications, LLC | No ROA | ARIN | 6/1/2026 |
Covering Prefix
7 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 204.120.64.0/20 | AS7459GRANDECOM-AS1 - Grande Communications Networks, LLC | No ROA | — | 6/1/2026 |
| 204.120.80.0/20 | AS7459GRANDECOM-AS1 - Grande Communications Networks, LLC | No ROA | — | 6/1/2026 |
| 204.120.96.0/20 | AS7459GRANDECOM-AS1 - Grande Communications Networks, LLC | No ROA | — | 6/1/2026 |
| 204.120.112.0/20 | AS7459GRANDECOM-AS1 - Grande Communications Networks, LLC | No ROA | — | 6/1/2026 |
| 204.120.173.0/24 | AS174COGENT-174 - Cogent Communications, LLC | No ROA | — | 6/1/2026 |
| 204.120.131.0/24 | AS4972UPS-AS4972 - UNITED PARCEL SERVICE | No ROA | — | 6/1/2026 |
| 204.120.180.0/24 | AS40724DEKALB-COUNTY-GEORGIA-GOVERNMENT - DeKalb County, Georgia | No ROA | — | 6/1/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/204.120.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/204.120.0.0/16" | jq
External Links