AS393456 United States Steel Corporation
AS393456 is operated by United States Steel Corporation and registered with ARIN (US) since 2014-05-27.
It announces 4 IPv4 and 0 IPv6 prefixes, 0% of them RPKI valid.
RIPE RIS sees 2 upstream and peer networks and 0 downstream networks next to it.
| Name | United States Steel Corporation |
|---|---|
| Registry handle | X |
| Registry (RIR) | ARIN |
| Country | United States (US) |
| Delegated on | 2014-05-27 |
| Prefixes (IPv4 / IPv6) | 4 / 0 |
| RPKI valid | 0% (0 / 4) |
| Upstreams and peers | 2 |
| Downstream networks | 0 |
Routing health
- AS393456 announces 4 IPv4 and 0 IPv6 prefixes.
- No IPv6 prefixes announced.
- 4 announced prefixes are not covered by a ROA of AS393456 (they may have none, or another network’s).
- 2 upstreams and peers, 0 downstream networks seen.
For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.
Announced prefixes 4
- 170.4.0.0/24
- 170.191.0.0/24
- 170.191.2.0/24
- 199.248.185.0/24
Upstreams and peers 2
The networks RIPE RIS sees next to AS393456 in BGP paths, the most visible first.
More about AS393456
Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-15 04:25 UTC. The country is where the AS number was registered, not necessarily where the network operates.