204.139.8.0/21
🇺🇸CIDR
204.139.8.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Arlington (Ballston)
RIR
ARIN
Status
allocated
Allocated
9/1/1994
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 204.139.8.0/21 | AS3257GTT-BACKBONE GTT Communications Inc. | No ROA | RADB | 6/1/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 204.139.12.0/22 | AS64289MACARNE - Macarne.com | Valid | — | 6/1/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS3257 | RADB | MAINT-AS3257 | 4/11/2025 |
Geolocation
Abuse Contact
API
Open https://api.ipctl.io/v1/prefix/204.139.8.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/204.139.8.0/21" | jq
External Links