Autonomous system
AS3999 PENN-STATE
Education ARIN
Summary
The Pennsylvania State University
education university research legacy
The campus network of The Pennsylvania State University (PENN-STATE), the public land-grant research university headquartered at University Park, Pennsylvania.
What it's used for
- Campus, residential, academic, and administrative networking for Penn State — not just University Park but the university's many Commonwealth Campuses spread across the state.
- Research networking, including connectivity for a large R1 research enterprise and its supercomputing and data resources.
Notable
- One of the larger university networks by address count, with well over 400,000 IPv4 addresses behind it — a scale reached by very few institutions and a sign of a legacy allocation from the era when universities received generous blocks.
- Institutional address space: users behind it are students, faculty, staff, and research systems rather than broadband subscribers or hosting customers.
Interesting
- Penn State's four-digit AS number and its outsized IPv4 footprint both reflect how central American research universities were to building out 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 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Equinix Internet Exchange Ashburn | Ashburn, United States | 206.126.239.192 |
Transit providers
7 upstream, 0 downstream and 12 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 11 prefixes · 444K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 12 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS3999- Registry name
- PENN-STATE
- Registrant
- The Pennsylvania State University
- Abuse contact
- abuse@psu.edu
- Registered
- 1994-11-04
- Last changed
- 2012-02-24
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 93% valid · 13 valid, 1 with no ROA
- ROAs
- 13 authorising AS3999
- ASPA
- no ASPA record
- IRR
- 100% registered · 14 of 14 announcements
- Route objects
- 27 naming AS3999
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: 442 networks and 1,783 prefixes, as published 2026-10-17. 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