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
Upstreams
Networks seen providing transit to this one
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS2914 NTT America, Inc. | 🇺🇸 US | 56,283 | 1,574 | 10 | CAIDA |
| AS6461 Zayo Bandwidth | 🇺🇸 US | 52,833 | 213 | 23 | CAIDA |
| AS52025 ParadoxNetworks Limited | 🇬🇧 GB | 15,553 | 13 | 1 | CAIDA |
Peers
Adjacencies that look settlement-free rather than transit
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS6939 Hurricane Electric LLC | 🇺🇸 US | 53,062 | 235 | 39 | CAIDA |
| AS9002 RETN Limited | 🇬🇧 GB | 50,802 | 18 | 2 | CAIDA |
| AS24482 SG.GS | 🇸🇬 SG | 5,024 | 45 | 1 | CAIDA |
| AS7575 Australian Academic and Research Network (AARNet) | 🇦🇺 AU | 567 | 201 | 1 | CAIDA |
| AS394256 Tech Futures Interactive Inc. | 🇨🇦 CA | 100 | 22 | 1 | CAIDA |
Downstreams
Networks this one appears to provide transit to
No downstreams observed at the collectors.
Relationships marked inferred come from where the two networks sit on the AS paths the collectors see, which is a guess and is wrong for some of them. The rest are stated by CAIDA's published inference over a much wider set of collectors.