Autonomous system
AS11834 DREXEL-ASN - Drexel University
Education ARIN
Summary
Drexel University
education university research legacy
DREXEL-ASN is the campus network of Drexel University, the private research university in Philadelphia, Pennsylvania. Everything it announces belongs to Drexel.
What it's used for
- University campus networking: student, staff, research and administrative traffic across Drexel's Philadelphia campuses, including the College of Medicine.
- RIS observes four IPv4 prefixes carrying about 131,584 addresses and no IPv6, against just two observed neighbours. The address count is dominated by two legacy
/16s,129.25.0.0/16and144.118.0.0/16, the kind of allocation US universities picked up when class-B space was still handed out to institutions. A pair of upstreams against 128k addresses is the classic university profile: a very large address pool, almost no peering fan-out, because a campus consumes transit rather than selling it.
Notable
- The registration side is unusually tidy. All four prefixes register to Drexel, with
198.17.30.0/24held specifically by Drexel University College of Medicine, an intra-institution split rather than a third-party registrant. There is nothing broker-shaped here: one RIR, first-party registrations, and a contiguous institutional inventory. - No PTRs were returned on the addresses sampled. That is a property of the sample, not evidence about the network, and no inference is drawn from it.
Interesting
- The absence of any announced IPv6 is worth noting for a research university of this size; a lot of campus IPv6 rides in over other paths rather than being originated by the campus AS itself.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-14, 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 · 132K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 4 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS11834- Registry name
- DREXEL-ASN
- Registrant
- Drexel University
- Abuse contact
- dunet-admin@drexel.edu
- Registered
- 1999-01-07
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 4 with no ROA
- ROAs
- 0 authorising AS11834
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 8 naming AS11834
Reputation
Classification and threat
Education University, school or national research and education network.
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: 455 networks and 1,849 prefixes, as published 2026-11-14. 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