Autonomous system
AS2 UDEL-DCN
Unclassified ARIN
Summary
University of Delaware
education university research legacy
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. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 2 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.195.119 |
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.210.28 |
Transit providers
9 upstream, 1 downstream and 11 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS45609 | Bharti Airtel Ltd. AS for GPRS Service | 118 |
| AS34 | University of Delaware | 63 |
| AS41837 | "South telephone company" LLC | 58 |
| AS203794 | LLC Gals-Telecom | 44 |
| AS52752 | Vegas Telecom Informatica Ltda. | 9 |
| AS270792 | luciano comin cardozo-me | 6 |
| AS37628 | KAB Technologies | 2 |
| AS199268 | LANCOM inzeniring racunalniskig sistemov d.o.o. | 1 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 4 prefixes · 78.08K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 4 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS2- Registry name
- UDEL-DCN
- Registrant
- University of Delaware
- Abuse contact
- noc@udel.edu
- Registered
- 1991-01-10
- Last changed
- 2023-11-08
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 8% valid · 1 valid, 10 with no ROA 1 RPKI-invalid
- ROAs
- 3 authorising AS2
- ASPA
- no ASPA record
- IRR
- 8% registered · 1 of 12 announcements 9 other origin
- Route objects
- 2 naming AS2
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: 440 networks and 1,773 prefixes, as published 2026-10-13. 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