Autonomous system
AS11231 GETTYSBURG-DOM
Education ARIN
Summary
Gettysburg College
education university legacy
GETTYSBURG-DOM is Gettysburg College, the private liberal-arts college at 300 N. Washington Street, Gettysburg, Pennsylvania (ARIN org GETTYS). The AS carries the college's single campus network.
What it's used for
Campus networking, and essentially nothing else. RIS observes 23 IPv4 prefixes carrying ~58,368 addresses and no IPv6, learned through only two observed neighbours. That is a classic small-university profile: a large legacy address block (the 138.234.0.0 space, sliced into a dozen /20s plus smaller pieces) announced through one or two research/commercial upstreams. A network with tens of thousands of addresses but two neighbours is not selling connectivity to anyone — it is one organisation announcing its own space.
Every prefix RDAP could resolve comes back registered to GETTYSBURG, and reverse DNS is uniformly first-party under cc.gettysburg.edu. Self-registered space with first-party rDNS settles the question: a real single operator, no leasing or brokerage.
Notable
The rDNS is unusually revealing about what the addresses actually carry. Names like westhall109com, scmatemstadium, dining-cam2, thetachicam1, sciencehp2910poe, sci155crestronpr and lamppost6300m are dorm rooms, stadium and dining-hall cameras, PoE switches, Crestron AV controllers and outdoor wireless access points. This is a flat, publicly-addressed campus in which classroom AV gear, cameras and dorm ports all sit in routable space — an addressing style that predates widespread NAT and persists at institutions holding plentiful IPv4.
Interesting
The abundance of addresses per student is the giveaway of an early allocation: the college has roughly one public IPv4 address for every campus device it has ever owned.
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 2026-10-17, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 9 prefixes · 58.37K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 9 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS11231- Registry name
- GETTYSBURG-DOM
- Registrant
- GETTYSBURG COLLEGE
- Abuse contact
- eyurick@gettysburg.edu
- Registered
- 1998-05-22
- Last changed
- 2012-02-24
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 23 with no ROA
- ROAs
- 0 authorising AS11231
- ASPA
- no ASPA record
- IRR
- 100% registered · 23 of 23 announcements
- Route objects
- 1 naming AS11231
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