Autonomous system
AS10755 DARTMOUTH-AS
Education ARIN
Summary
Dartmouth College
education university research legacy
DARTMOUTH-AS is Dartmouth College, the Ivy League university in Hanover, New Hampshire. It is a straightforward campus network: one institution, one legacy /16, one IPv6 block.
What it's used for
RIS observes exactly 1 announced IPv4 prefix — 129.170.0.0/16, 65,536 addresses — plus 1 IPv6 prefix (2604:5f00::/32) and 5 observed neighbours. The clean single-prefix announcement is itself a signal of institutional maturity: the college got a Class B allocation early, never had to bolt scraps onto it, and has never needed to deaggregate it for traffic engineering.
What sits behind those 65,536 addresses is the usual university mix: student residential networks and campus wireless, faculty and departmental systems, library and administrative services, research computing, and the public web presence. A /16 is generous for a college of Dartmouth's size, which is why campuses of this vintage were historically among the last places on the internet where you could still find an unmodified, publicly routable address on a desktop.
Five neighbours is consistent with a research campus: commercial transit for general traffic, plus connections toward the regional research-and-education network and on to Internet2, which is how US universities reach one another and reach large-scale research facilities without crossing the commodity internet.
Notable
Dartmouth has a genuine claim on computing history — BASIC was created there in 1964, and the Dartmouth Time-Sharing System that ran it was one of the earliest efforts to put interactive computing in front of ordinary undergraduates rather than specialists. The campus network descended from that tradition was an early and unusually complete one.
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 2026-10-20, 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 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS10755- Registry name
- DARTMOUTH-AS
- Registrant
- Dartmouth College
- Abuse contact
- abuse@dartmouth.edu
- Registered
- 1997-11-18
- Last changed
- 2012-04-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 2 valid, 0 with no ROA
- ROAs
- 2 authorising AS10755
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 3 naming AS10755
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 1,779 prefixes, as published 2026-10-21. 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