$ query “AS35661” --type=asn → 1 result(s)

AS35661 · VIRTUASYS-EU

VIRTUA SYSTEMS SAS

AS35661 is operated by VIRTUA SYSTEMS SAS and serves as a mid-size transit provider, based in France since 2019. The system announces 7 936 IPv4 addresses, and supports IPv6. Its primary geographic footprint is in the United States, with additional presence in France and Romania, and smaller footprints in 7 additional countries. Prefix announcements for this AS were recently updated.

  • Top 5% — Top 5% of all autonomous systems by reach and degree

Basic Information

Country
🇫🇷 France
Category
Hosting
Network Role
Mid-size Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
January 21, 2019
Last Changed
March 04, 2026
Last Seen
October 21, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
32 / 16
IPv6 Prefixes (raw / aggregated)
22 / 11
IPv4 Addresses
7 936
Largest IPv4 Prefix
/22 (1 024 addresses)
Largest IPv6 Prefix
/31
Geolocated Countries
🇫🇷 France (2 304 IPs), 🇺🇸 United States (2 304 IPs), 🇷🇴 Romania (512 IPs) and 7 more
Prefix Changed
October 22, 2026

Reputation

Reputation
Good — 6 flagged IPs out of 7 936 total (0.08%)

Connectivity Summary

Upstream Providers
6 upstreams providing transit
Peers
75 networks exchanging traffic without transit
Downstream Customers
57 downstreams buying transit
Unclassified
109 unclassified BGP neighbors
Degree
247 unique BGP neighbors
Reach
57 networks in customer cone

Upstream Providers (6)

Prefix Lists

IPv4 Prefixes (32 total)

  • 45.157.116.0/22 (1 024 addresses (/22 prefix))
  • 84.75.12.0/22 (1 024 addresses (/22 prefix))
  • 84.75.20.0/22 (1 024 addresses (/22 prefix))
  • 185.10.16.0/22 (1 024 addresses (/22 prefix))
  • 185.154.152.0/22 (1 024 addresses (/22 prefix))
  • 64.204.237.0/24 (256 addresses (/24 prefix))
  • 77.67.9.0/24 (256 addresses (/24 prefix))
  • 95.155.152.0/24 (256 addresses (/24 prefix))
  • 130.78.26.0/24 (256 addresses (/24 prefix))
  • 150.241.243.0/24 (256 addresses (/24 prefix))
  • 185.225.7.0/24 (256 addresses (/24 prefix))
  • 185.234.100.0/24 (256 addresses (/24 prefix))
  • 185.253.61.0/24 (256 addresses (/24 prefix))
  • 188.214.24.0/24 (256 addresses (/24 prefix))
  • 194.147.105.0/24 (256 addresses (/24 prefix))
  • 194.147.109.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (22 total)

  • 2a07:8dc0::/31
  • 2a03:5840::/32
  • 2a0d:e680::/32
  • 2602:f72e:800::/37
  • 2602:fa02:f00::/40
  • 2a06:9801:3000::/40
  • 2a14:7583:5a00::/40
  • 2a10:fa80:120::/44
  • 2a0f:9400:738b::/48
  • 2a10:fa80:7::/48
  • 2a13:9500:187::/48