AS23309 Contra Costa County Office of Education 🇺🇸 US
Announcing 2 prefixes, seen at the RIS collectors.
IPv4 prefixes
1
65,536 (256 × /24)
IPv6 prefixes
1
1 × /32
Upstreams
1
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
- AS23309
- Name
- Contra Costa County Office of Education
- Organisation
- Contra Costa County Office of Education
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 2002-02-26
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
2 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 169.199.0.0/16 v4 | RPKI valid | 44 | 377216461215223309 | 2026-09-18 |
| 2607:fb78::/32 v6 | RPKI valid | 36 | 6939215223309 | 2026-09-18 |