asn.dev

Autonomous system

AS37912 IPRIO-JP - IPRIO Corporation.

Unclassified APNIC Enterprise

IPv4 addresses 2.05K 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly JP
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

IPRIO Corporation

Japan · AI-generated

business certification enterprise

IPRIO-JP is operated by IPRIO Corporation.

What it's used for

  • The address space carries corporate infrastructure, evidenced by the netname IPRIO and registrant Iprio Corporation for the prefix 203.86.240.0/21.
  • The AS announces 2048 IPv4 addresses and 1 IPv6 prefix (2402:e800::/32) with only 1 observed neighbour, indicating a small, self-contained enterprise network rather than a transit or access provider.
  • Traffic from this AS consists of web and API endpoints for IPRIO's digital certification and token timestamping services.

Notable

  • The RDAP registrant Iprio Corporation and IRT contact IRT-IPRIO-JP align directly with the AS holder IPRIO Corporation.
  • The address inventory is compact, consisting of a single /21 IPv4 block and a single /32 IPv6 prefix, consistent with a focused corporate 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

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 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS7529GMO NetIRD, Inc.96

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-03, 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 1 prefixes · 2.05K addresses IPv6 1 prefixes

CountryNamePrefixes
JPJapan2

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS37912
Registry name
IPRIO-JP
Abuse contact
hostmaster@nic.ad.jp
Registered
2006-01-30
Last changed
2007-04-06
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
IPRIO Corporation.
Network type
Enterprise
Scope
Not Disclosed
Traffic ratio
Not Disclosed
Peering policy
Open
Website
https://www.iprio.com/

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS37912
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
4 naming AS37912

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: 451 networks and 1,853 prefixes, as published 2026-11-04. 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