Autonomous system
AS3782 SWARTHMORE - Swarthmore College
Education ARIN
Summary
Swarthmore College
education university legacy
SWARTHMORE is the ASN of Swarthmore College, a liberal-arts college in Swarthmore, Pennsylvania, southwest of Philadelphia.
What it's used for
- Campus networking: academic departments, administrative systems, the library, computing labs, and student residential networks.
- Announces a legacy /16 — about 65,000 addresses for a college of roughly 1,600 students.
Notable
- Institutional address space serving one campus. Nothing commercial lives here.
- Like its neighbour AS3777 (Haverford College), Swarthmore holds a full /16 — far more address space than a college of its size could ever need, and a direct legacy of classful allocation practice in the early internet.
Interesting
- Swarthmore, Haverford, and Bryn Mawr have long shared a tri-college consortium, so their networks grew up alongside one another. The adjacent AS numbers in the 3770s and 3780s trace the same Pennsylvania cohort, including AS3778 (Temple University).
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 1 prefixes · 65.54K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS3782- Registry name
- SWARTHMORE
- Registrant
- Swarthmore College
- Abuse contact
- infosec@swarthmore.edu
- Registered
- 1994-08-24
- Last changed
- 2023-05-03
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 1 valid, 0 with no ROA
- ROAs
- 1 authorising AS3782
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 2 naming AS3782
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