Autonomous system
AS16643 VCU-ASN1
Unclassified ARIN
Summary
Virginia Commonwealth University
education research infrastructure
Sixty-five thousand globally routed addresses, under a netname calling them a local network.
What it's used for
- A university's network. One IPv4 prefix announced from the United States, no IPv6, sixty-five thousand five hundred and thirty-six addresses, through two observed BGP neighbours.
Notable
- The AS handle is the university's three initials, the three letters for an autonomous system number, and the numeral one.
- The single block is registered to the university under a netname of those same initials and the three letters for a local area network.
- One block holds the entire announcement, which is unusual at this size and typical of an institution allocated its space in a single grant.
- Three addresses were queried for reverse DNS and none returned a name.
- Two observed neighbours carry the whole campus.
Interesting
- Calling globally routed space a local network is a habit from a time when a campus block was exactly that. The campus was the network, and everything outside it was somebody else's problem.
- A counter of one on the handle of a university's only AS number is optimism about a second that never arrived, or simply the shape of a template.
- Sixty-five thousand addresses answering nothing means the naming is entirely internal. From outside, this is a large well-defined block with no visible structure at all.
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 2026-10-28, 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 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS16643- Registry name
- VCU-ASN1
- Registrant
- Virginia Commonwealth University
- Abuse contact
- patelkr2@vcu.edu
- Registered
- 2000-05-30
- Last changed
- 2026-05-13
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 4 with no ROA
- ROAs
- 0 authorising AS16643
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 4 naming AS16643
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: 448 networks and 1,849 prefixes, as published 2026-10-29. 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