Autonomous system
AS5719 SUNYSB
Education ARIN
Summary
Stony Brook University (SUNY)
education university research legacy
The campus network of Stony Brook University, a flagship research campus of the State University of New York on Long Island, under the handle SUNYSB.
What it's used for
- Connectivity for the university's colleges, residence halls, research groups and medical centre, on legacy class-B space (
129.49.0.0/16and130.245.0.0/16) plus modern IPv6 allocations. - Supports research computing and data-intensive science, the usual load for a major public research university.
Notable
- Institutional address space, serving students, faculty and university systems rather than paying subscribers.
- Dual class-B allocations plus several early
192.12.x/24s mark this as an early-connected campus that accumulated address space before allocations tightened.
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 2026-10-21, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 5 prefixes · 132K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 7 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS5719- Registry name
- SUNYSB
- Registrant
- State University of New York at Stony Brook
- Abuse contact
- abuse@stonybrook.edu
- Registered
- 1995-09-06
- Last changed
- 2023-10-16
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 11 valid, 0 with no ROA
- ROAs
- 8 authorising AS5719
- ASPA
- no ASPA record
- IRR
- 91% registered · 10 of 11 announcements
- Route objects
- 12 naming AS5719
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 2026-10-22. 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