AS398577 SKANSKA USA INC 🇺🇸 US
Announcing 4 prefixes, seen at the RIS collectors.
IPv4 prefixes
3
2,560 (10 × /24)
IPv6 prefixes
1
1,024 × /48
Upstreams
2
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS398577
- Name
- SKANSKA USA INC
- Organisation
- SKANSKA USA INC
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 2020-07-14
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
4 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 144.57.40.0/21 v4 | RPKI valid | 44 | 345493257398577 | 2026-09-18 |
| 144.57.40.0/24 v4 | RPKI valid | 44 | 377213356398577 | 2026-09-18 |
| 144.57.41.0/24 v4 | RPKI valid | 43 | 345493257398577 | 2026-09-18 |
| 2602:800:c400::/38 v6 | no ROA | 33 | 345493257398577 | 2026-09-18 |