AS2 — UDEL-DCN - University of Delaware

AS2 announces 4 IPv4 prefixes covering 78,080 addresses and 0 IPv6 prefixes.

About this network

An early allocation (UDEL-DCN) belonging to the University of Delaware in Newark, Delaware.

What it's used for

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

Notable

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

Interesting

• The University of Delaware was home to David Mills, whose "fuzzball" routers and NTP work were foundational to the early internet.

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

Announced prefixes

• 91.143.144.0/20
• 128.4.0.0/16
• 171.79.128.0/19
• 189.76.77.0/24

Upstream networks

• AS45609 Bharti Airtel Ltd. AS for GPRS Service
• AS34 University of Delaware
• AS41837 "South telephone company" LLC
• AS203794 LLC Gals-Telecom
• AS270792 luciano comin cardozo-me
• AS52752 Vegas Telecom Informatica Ltda.
• AS37628 KAB Technologies
• AS327753 SBM BANK (KENYA) LIMITED

Adjacent networks

• AS45609 Bharti Airtel Ltd. AS for GPRS Service
• AS34 University of Delaware
• AS41837 "South telephone company" LLC
• AS203794 LLC Gals-Telecom
• AS270792 luciano comin cardozo-me
• AS52752 Vegas Telecom Informatica Ltda.
• AS37628 KAB Technologies
• AS327753 SBM BANK (KENYA) LIMITED

Routing security

• RPKI: 1 valid, 0 invalid and 10 not-found announcements; 3 ROAs.
• ASPA: none published.
• IRR: 9% of announcements registered; 2 route objects.
• Listed in as-sets: AS-12655, AS-397268, AS-CTBC-CUSTOMERS182, AS-CTBC-TOOLS-10, AS-CTGNETONAPTESTCHILD, AS-HURRICANE, AS-IMCL, AS-STEFAN, AS-STEFAN, AS-STEFAN, AS-TELSTRA-INTL-CUSTOMERS-4637, AS-UFLA-TRANSCUST, AS137385:AS-ASIAN-NETWORK, AS199310:AS-DOWNSTREAM, AS26677:AS-TEST, AS3491:AS-CUSTOMERS-NA, AS3630:AS-CONNECTORS, AS3754:AS-CONNECTORS, AS6400:AS-CODETEL.

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• AMS-IX Amsterdam — Amsterdam, Netherlands