AS26 — CORNELL - Cornell University

AS26 announces 6 IPv4 prefixes covering 197,376 addresses and 1 IPv6 prefixes.

About this network

An early allocation (CORNELL) belonging to Cornell University in Ithaca, New York.

What it's used for

• Campus, research, and administrative networking for the university.

Notable

• A low AS number reflects an allocation from the internet's earliest years, handed out roughly sequentially. An institutional network, not a commercial ISP.

Interesting

• Cornell hosted the Cornell Theory Center, one of the NSFNET-era supercomputer centers that anchored the early US research internet.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 128.84.0.0/16
• 128.253.0.0/16
• 132.236.0.0/16
• 192.35.82.0/24
• 192.122.235.0/24
• 192.122.236.0/24
• 2620:110:d000::/44

Upstream networks

• AS13536 FirstLight Fiber, Inc.
• AS1299 Arelion Sweden AB
• AS3754 NYSERNet
• AS394019 FiberSpark Inc.

Adjacent networks

• AS13536 FirstLight Fiber, Inc.
• AS1299 Arelion Sweden AB
• AS3754 NYSERNet
• AS394019 FiberSpark Inc.

Routing security

• RPKI: 1 valid, 0 invalid and 6 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 8 route objects.
• Listed in as-sets: AS-FIBERSPARK, AS-HURRICANE, AS-HURRICANEV6, AS-NYSR-DE, AS-TRANSROUTE-SPEC, AS-TVC, AS11722:AS-CUSTOMERS, AS13335:AS-CUSTOMERS, AS13536:AS-CONE, AS14477:AS-CUSTOMERS, AS21575:AS-ENTELPERU, AS26:AS-ALL, AS3630:AS-CONNECTORS, AS3754:AS-CONNECTORS, AS3770:AS-ALL, AS6400:AS-CODETEL.