asn.dev

Autonomous system

AS21641 VIRTUASYS-AMERICA

Unclassified ARIN

IPv4 addresses 0 0 prefixes
IPv6 prefixes 3 counted as prefixes, not addresses
Countries 1 mostly Unknown
Exchanges 1 recorded by PCH
Upstreams 2 2 downstream
Flagged prefixes 0 none

Summary

VirtuaSys America

unknown · AI-generated

ipv6 transit virtual

The AS handle VIRTUASYS-AMERICA is held by VirtuaSys America.

What it's used for

  • The address space consists entirely of IPv6 prefixes, including 2607:8bc0::/32, 2a0e:8a84::/32, 2a0f:9400:7389::/48, 2a10:3c81::/32, and 2a14:c380:e00::/40.
  • With 5 announced IPv6 prefixes and 7 observed neighbours, the ratio suggests a transit or interconnection role rather than a large-scale access network.

Notable

  • Registry holder and RDAP registrant data were unavailable, so registrant agreement with the announcer cannot be verified.
  • The inventory contains no IPv4 prefixes, indicating a pure IPv6 operation.
  • The address inventory is finely subdivided across multiple /32 and /40 blocks, consistent with an internal corporate or virtualized estate.

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

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Fremont Cabal Internet ExchangeFremont, United States206.80.238.113

Transit providers

2 upstream, 2 downstream and 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS58057Securebit AG1
AS197959VIRTUA SYSTEMS SAS1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 0 prefixes · 0 addresses IPv6 3 prefixes

CountryNamePrefixes
Unknown3

Registry

Allocation record

ARIN · via Atlas (registry data)
Registry
ARIN
Allocation
reserved

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
6 authorising AS21641
ASPA
no ASPA record
IRR
0% registered · 0 of 1 announcements
Route objects
9 naming AS21641

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 1,773 prefixes, as published 2026-10-13. 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

Cross-check