asn.dev

Autonomous system

AS55393 MIDOKURA Midokura Japan K.K.

Unclassified APNIC

IPv4 addresses 1.28K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly JP
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

Midokura Japan K.K.

Japan · AI-generated

business japan gpu networking

MIDOKURA is the autonomous system for Midokura Japan K.K.

What it's used for

  • The address space carries corporate infrastructure, identified by the netname MIDOKURA-CIDR-BLK-JP and registrant Japan Network Information Center; IRT-JPNIC-JP.
  • The AS announces a single IPv4 prefix, 119.15.112.0/22, comprising 1024 addresses, with 3 observed routing neighbours.
  • Traffic from this AS consists of web and API endpoints for Midokura's GPU server sales, HPC services, and network virtualization platform operations.

Notable

  • The registrant Japan Network Information Center; IRT-JPNIC-JP aligns with the announcer Midokura Japan K.K., confirming direct ownership of the address block.
  • Midokura is an acquired company based in Tokyo, founded in 2010, operating as an open-source edge platform for network virtualization and a supplier of Supermicro GPU servers.
  • The inventory consists of one contiguous /22 block with no announced IPv6 prefixes.

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

3 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS15830Equinix (EMEA) Acquisition Enterprises B.V.174
AS35699Adamo Telecom Iberia S.A.58
AS215029OXIGEN Data Center S.L.58

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-27, 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 2 prefixes · 1.28K addresses IPv6 0 prefixes

CountryNamePrefixes
JPJapan2

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS55393
Registry name
MIDOKURA
Registered
2010-01-18
Last changed
2025-10-03
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 5 valid, 0 with no ROA
ROAs
5 authorising AS55393
ASPA
no ASPA record
IRR
0% registered · 0 of 5 announcements
Route objects
1 naming AS55393

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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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