Autonomous system
AS101 WASH-NSF-AS
Unclassified ARIN
Summary
University of Washington
education university research legacy
An early allocation (WASH-NSF-AS) serving the University of Washington in Seattle, dating from its NSFNET-era connection.
What it's used for
- Campus, research, and administrative networking for the University of Washington.
Notable
- An institutional / "eyeball" network for a major research university, not commercial hosting. The low AS number reflects an allocation from the internet's earliest years, handed out roughly sequentially.
Interesting
- The
NSFin the handle points back to the National Science Foundation's NSFNET program, which connected US research universities in the late 1980s.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 3 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Seattle Internet Exchange | Seattle, United States | 206.81.80.84 |
| JPIX Tokyo | Tokyo, Japan | 210.171.225.170 |
| Northwest Access Exchange | Portland, United States | 198.32.195.17 |
Transit providers
16 upstream, 18 downstream and 62 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 4.10K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS101- Registry name
- WASH-NSF-AS
- Registrant
- University of Washington
- Abuse contact
- abuse@uw.edu
- Registered
- 1987-03-31
- Last changed
- 2021-10-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 7 valid, 0 with no ROA
- ROAs
- 4 authorising AS101
- ASPA
- no ASPA record
- IRR
- 100% registered · 7 of 7 announcements
- Route objects
- 9 naming AS101
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,782 prefixes, as published 2026-10-16. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere