AS21525 Seattle Public Library 🇺🇸 US
Announcing 2 prefixes, seen at the RIS collectors.
IPv4 prefixes
1
4,096 (16 × /24)
IPv6 prefixes
1
1 × /48
Upstreams
3
transit providers observed
Peers
5
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS21525
- Name
- Seattle Public Library
- Organisation
- Seattle Public Library
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 2001-05-16
- Network type
- Educational/Research
- Traffic levels
- 100-1000Mbps
- Scope
- Regional
- Peering policy
- Open
- IRR as-set
- AS21525:AS-GLOBAL
- Website
- http://www.spl.org
- PeeringDB
- net/3991
- Exchanges
- 1
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 |
|---|---|---|---|---|
| 66.212.64.0/20 v4 | no ROA | 42 | 2448221525 | 2026-09-18 |
| 2620:18::/48 v6 | no ROA | 37 | 693921525 | 2026-09-18 |