Autonomous system
AS11872 SYRACUSE-UNIVERSITY
Education ARIN
Summary
Syracuse University
education university research legacy
SYRACUSE-UNIVERSITY is Syracuse University's campus network, in Syracuse, New York. The reverse DNS settles it beyond argument: the space is full of syr.edu hostnames.
What it's used for
Campus connectivity, for the usual mixture of administration, teaching, residential halls and research. RIS observes nine IPv4 prefixes carrying about 66,300 addresses, one IPv6 prefix (2620:4e::/48), and four observed BGP neighbours.
The core of the network is the legacy /16 128.230.0.0/16, announced whole and also as its four /18 quarters, all registered in ARIN as SYR-UNIV-NET to Syracuse University. The sampled rDNS lands squarely inside the university: syr-64-5.syr.edu and syr-192-5.syr.edu are generic campus addresses, segdb-test.phy.syr.edu is a test host in the physics department, and as-gdhoke-vm02.syr.edu and as-psy-titanium.syr.edu are machines in the College of Arts and Sciences and its psychology department. Departmental and per-machine naming like this is what a real university network looks like from the outside.
Notable
Two announced prefixes are registered to someone other than the university: 74.80.186.0/24 to Performive LLC and 149.119.6.0/24 to Cogent Communications. Neither is a red flag. Those are provider-assigned blocks, space a hosting company or a transit carrier hands to a customer that then announces it from its own AS. The tell for leased or brokered space is unrelated registrants, not merely non-holder ones, and a university sitting on a slice of its hosting provider's and its transit provider's space is ordinary.
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 2026-10-22, 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 · 66.30K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 12 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS11872- Registry name
- SYRACUSE-UNIVERSITY
- Registrant
- Syracuse University
- Abuse contact
- infosec@syr.edu
- Registered
- 1999-01-25
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 70% valid · 7 valid, 3 with no ROA
- ROAs
- 2 authorising AS11872
- ASPA
- no ASPA record
- IRR
- 100% registered · 10 of 10 announcements
- Route objects
- 20 naming AS11872
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 2026-10-23. 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