AS103 Northwestern University 🇺🇸 US
Announcing 30 prefixes, seen at the RIS collectors.
IPv4 prefixes
27
150,784 (589 × /24)
IPv6 prefixes
3
256 × /48
Upstreams
10
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
- AS103
- Name
- Northwestern University
- Organisation
- Northwestern University
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 1987-04-09
- Scope
- Not Disclosed
- Peering policy
- Restrictive
- Website
- https://www.northwestern.edu
- PeeringDB
- net/19144
- Facilities
- 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 |
|---|---|---|---|---|---|
| AS3356 Lumen (Level 3) | 🇺🇸 US | 71,003 | 2,084 | 107 | CAIDA |
| AS174 Cogent Communications, LLC | 🇺🇸 US | 65,600 | 3,997 | 116 | CAIDA |
| AS11537 Internet2 | 🇺🇸 US | 2,239 | 23 | 6 | CAIDA |
| AS11164 Internet2 I2PX | 🇺🇸 US | 1,268 | 13 | 6 | CAIDA |
| AS33491 Comcast Cable Communications, LLC | 🇺🇸 US | 279 | 84 | 62 | CAIDA |
| AS396450 Internet2 | 🇺🇸 US | 199 | 0 | 210 | CAIDA |
| AS2381 WiscNet | 🇺🇸 US | 160 | 37 | 738 | CAIDA |
| AS22335 Metropolitan Research and Education Network | 🇺🇸 US | 18 | 1 | 57 | CAIDA |
| AS65502 | - | 0 | 0 | 2 | inferred |
| AS149433 FM Networks | 🇧🇩 BD | 0 | 3 | 2 | inferred |
Peers
Adjacencies that look settlement-free rather than transit
No peers observed at the collectors.
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.