AS12054 Alameda County 🇺🇸 US
Announcing 5 prefixes, seen at the RIS collectors.
IPv4 prefixes
5
26,880 (105 × /24)
IPv6 prefixes
0
-
Upstreams
3
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
- AS12054
- Name
- Alameda County
- Organisation
- Alameda County
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 2007-01-17
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
5 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 166.107.64.0/18 v4 | no ROA | 42 | 701812054 | 2026-09-18 |
| 166.107.71.0/24 v4 | no ROA | 41 | 701812054 | 2026-09-18 |
| 166.107.72.0/21 v4 | no ROA | 41 | 701812054 | 2026-09-18 |
| 166.107.80.0/20 v4 | no ROA | 42 | 701812054 | 2026-09-18 |
| 166.107.96.0/20 v4 | no ROA | 42 | 701812054 | 2026-09-18 |