AS103 Northwestern University 🇺🇸 US
Announcing 25 prefixes, seen at the RIS collectors.
IPv4 prefixes
22
149,504 (584 × /24)
IPv6 prefixes
3
256 × /48
Upstreams
8
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
Announced prefixes
22 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 8.28.178.0/23 v4 | no ROA | 48 | 58057174103 | 2026-09-18 |
| 8.30.248.0/22 v4 | no ROA | 48 | 58057174103 | 2026-09-18 |
| 38.124.97.0/24 v4 | no ROA | 49 | 58057174103 | 2026-09-18 |
| 129.105.0.0/16 v4 | no ROA | 49 | 58057174103 | 2026-09-18 |
| 165.124.0.0/17 v4 | no ROA | 49 | 58057174103 | 2026-09-18 |
| 165.124.128.0/19 v4 | no ROA | 49 | 58057174103 | 2026-09-18 |
| 165.124.160.0/20 v4 | no ROA | 49 | 58057174103 | 2026-09-18 |
| 165.124.176.0/21 v4 | no ROA | 49 | 58057174103 | 2026-09-18 |
| 165.124.184.0/23 v4 | no ROA | 49 | 58057174103 | 2026-09-18 |
| 165.124.186.0/24 v4 | no ROA | 49 | 58057174103 | 2026-09-18 |
| 165.124.192.0/19 v4 | no ROA | 49 | 58057174103 | 2026-09-18 |
| 165.124.224.0/21 v4 | no ROA | 49 | 58057174103 | 2026-09-18 |
| 165.124.232.0/22 v4 | no ROA | 49 | 58057174103 | 2026-09-18 |
| 165.124.240.0/20 v4 | no ROA | 49 | 58057174103 | 2026-09-18 |
| 192.5.143.0/24 v4 | no ROA | 49 | 34549174103 | 2026-09-18 |
| 192.26.85.0/24 v4 | no ROA | 49 | 34549174103 | 2026-09-18 |
| 192.26.86.0/23 v4 | no ROA | 49 | 34549174103 | 2026-09-18 |
| 192.31.253.0/24 v4 | no ROA | 49 | 34549174103 | 2026-09-18 |
| 199.74.64.0/18 v4 | no ROA | 49 | 58057174103 | 2026-09-18 |
| 199.249.165.0/24 v4 | no ROA | 49 | 34549174103 | 2026-09-18 |
| 199.249.166.0/23 v4 | no ROA | 49 | 34549174103 | 2026-09-18 |
| 199.249.168.0/23 v4 | no ROA | 49 | 34549174103 | 2026-09-18 |