asn.dev

Autonomous system

AS3777 HAVERFORD - Haverford College

Education ARIN

IPv4 addresses 65.54K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Haverford College

United States · AI-generated

education university legacy

HAVERFORD is the ASN of Haverford College, a small liberal-arts college in Haverford, Pennsylvania, just outside Philadelphia.

What it's used for

  • Campus networking for the college: academic and administrative systems, student residential networks, library and lab infrastructure.
  • Announces a legacy /16 — roughly 65,000 addresses for a college of well under 1,500 students.

Notable

  • Institutional address space: hosts here are campus systems and student networks, not commercial customers.
  • The size of the allocation is the striking part. A full /16 for a small liberal-arts college is a classic early-internet artifact from the era when address space was assigned generously by class rather than by need.

Interesting

  • Haverford sits in a cluster of Pennsylvania institutions with adjacent AS numbers, alongside AS3778 (Temple University) and AS3782 (Swarthmore College) — the signature of a state's campuses being brought online together through the same regional network.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS174Cogent Communications, LLC38
AS36412Drexel University24

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

Shape and geography

IPv4 1 prefixes · 65.54K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS3777
Registry name
HAVERFORD
Registrant
Haverford College
Abuse contact
hcnet-request@haverford.edu
Registered
1994-08-19
Last changed
2023-11-14
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
1 authorising AS3777
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS3777

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

Cross-check