AS101 — WASH-NSF-AS - University of Washington

AS101 announces 1 IPv4 prefixes covering 4,096 addresses and 1 IPv6 prefixes.

About this network

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 NSF in 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.

Announced prefixes

• 209.124.176.0/20
• 2001:1860::/32

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS3491 PCCW Global (HK) Ltd.
• AS7575 Australian Academic and Research Network (AARNet)
• AS11164 Internet2
• AS9002 RETN Limited
• AS394256 Tech Futures Interactive Inc.
• AS24482 SG.GS
• AS852 TELUS Communications Inc.
• AS11537 Internet2
• AS2152 CENIC
• AS2497 Internet Initiative Japan Inc.
• AS52025 ParadoxNetworks Limited
• AS3130 RGnet OU
• AS293 ESnet

Downstream networks

• AS10430 Washington State K-20 Telecommunications Network
• AS3807 University of Montana
• AS73 University of Washington
• AS13476 Montana State University
• AS4193 State of Washington
• AS17200 Seattle Community College District
• AS54429 Local Connectivity Lab
• AS14954 The Fred Hutchinson Cancer Research Center
• AS11548 Heritage University
• AS14221 University of Washington
• AS39941 Pacific Wave
• AS19014 NORCOM
• AS40272 Allen Institute
• AS7774 University of Alaska
• AS3428 ESnet
• AS11649 Gonzaga University
• AS53472 City of Kirkland Washington
• AS47065 USC / UFMG PEERING Research Testbed

Adjacent networks

• AS10430 Washington State K-20 Telecommunications Network
• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS3807 University of Montana
• AS3491 PCCW Global (HK) Ltd.
• AS73 University of Washington
• AS13476 Montana State University
• AS11537 Internet2
• AS7575 Australian Academic and Research Network (AARNet)
• AS11164 Internet2
• AS4193 State of Washington
• AS11956 National Oceanic and Atmospheric Administration
• AS17200 Seattle Community College District
• AS293 ESnet
• AS2152 CENIC
• AS852 TELUS Communications Inc.
• AS24482 SG.GS
• AS3130 RGnet OU
• AS394256 Tech Futures Interactive Inc.
• AS2497 Internet Initiative Japan Inc.
• AS9002 RETN Limited
• AS52025 ParadoxNetworks Limited
• AS54429 Local Connectivity Lab
• AS14954 The Fred Hutchinson Cancer Research Center

Routing security

• RPKI: 7 valid, 0 invalid and 0 not-found announcements; 4 ROAs.
• ASPA: none published.
• IRR: 71% of announcements registered; 9 route objects.
• Listed in as-sets: AS-AS27194-SIX-PEERS, AS-INCAPSULA, AS-INCAPSULA, AS-INCAPSULA:AS-SET_STG, AS-INTERNET2, AS-ISOMEDIASIX, AS-PNW-GIGAPOP, AS-PNW-GIGAPOP-I, AS-PNW-GIGAPOP-I2, AS-PNW-GIGAPOP-NLR, AS-SUMMIT, AS-TEST_INCAPSULA, AS23314:AS-ALL, AS293:AS-FROM-SINGAREN-TO-ESNET, AS3742:AS-P, AS7575:AS-RESEARCH.

Internet exchanges

• Seattle Internet Exchange — Seattle, United States
• JPIX Tokyo — Tokyo, Japan
• Northwest Access Exchange — Portland, United States