asn.dev

Autonomous system

AS36599 SOFTETHER-AMERICA - SoftEther Telecommunication Research Institute, LLC

VPN ARIN

IPv4 addresses 1.79K 3 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

SoftEther / VPN Gate

Japan · AI-generated

vpn

The network of the SoftEther Telecommunication Research Institute, LLC, the entity behind the SoftEther VPN software and the academic VPN Gate project. The org is a US-registered ARIN LLC (Sacramento, California), but the project originates from Japan and its IPs egress from Tokyo.

What it's used for

  • VPN egress for SoftEther / VPN Gate users. VPN Gate is a volunteer-run public relay experiment (from the University of Tsukuba) that lets people bypass censorship by routing through donated relay servers.

Notable

  • An IP here is a VPN exit, not an end user's real address. VPN Gate relays are public and heavily shared, so these IPs appear prominently on VPN/proxy detection and blocklists.

Interesting

  • SoftEther began as a University of Tsukuba research project by Daiyuu Nobori and remains widely used open-source multi-protocol VPN software.

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

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS59103SoftEther Corporation248

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-01, 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 3 prefixes · 1.79K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America3

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS36599
Registry name
SOFTETHER-AMERICA
Registrant
SoftEther Telecommunication Research Institute, LLC
Abuse contact
open-poc@rt.open.ad.jp
Registered
2017-01-25
Last changed
2018-02-02
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 4 with no ROA
ROAs
0 authorising AS36599
ASPA
no ASPA record
IRR
0% registered · 0 of 4 announcements
Route objects
0 naming AS36599

Reputation

Classification and threat

VPN Commercial VPN operator. Traffic is proxied on behalf of subscribers.

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: 447 networks and 1,843 prefixes, as published 2026-11-02. 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