Autonomous system
AS31822 CITY-UNIVERSITY-OF-NEW-YORK
Unclassified ARIN
Summary
City University of New York
education university cuny new-york
CITY-UNIVERSITY-OF-NEW-YORK is operated by City University of New York.
What it's used for
- The address space carries the network infrastructure for CUNY's constituent colleges, with netnames identifying specific campuses such as
CITYCOLLEGE(City College),HUNTER-1(Hunter College),BROOKLYN-B(Brooklyn College),LEHMAN-1(Lehman College),BARUCH-B1(Baruch College), andSTATEN-ISL(College of Staten Island). - The AS announces 659712 IPv4 addresses across 12 prefixes while maintaining only 3 observed neighbours, a ratio characteristic of a large internal corporate or institutional estate rather than a transit provider.
Notable
- Registrants align closely with the announcer, listing specific CUNY colleges like City College of New York, Hunter College, and Brooklyn College, alongside the central university entity.
- The inventory consists of ten /16 blocks, one /20, and one /24, reflecting a finely subdivided internal network structure for a multi-campus university system.
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 12 prefixes · 660K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 12 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS31822- Registry name
- CITY-UNIVERSITY-OF-NEW-YORK
- Registrant
- City University of New York
- Abuse contact
- security@cuny.edu
- Registered
- 2004-01-02
- Last changed
- 2023-09-20
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 12 with no ROA
- ROAs
- 0 authorising AS31822
- ASPA
- no ASPA record
- IRR
- 100% registered · 12 of 12 announcements
- Route objects
- 17 naming AS31822
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
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