asn.dev

Autonomous system

AS63773 DUAL-NET - dual&Co. Inc.

Hosting APNIC Content

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

Summary

dual&Co. Inc.

Japan · AI-generated

business japan ipv6

The AS handle DUAL-NET is held by dual&Co. Inc.

What it's used for

  • The address space carries corporate infrastructure, evidenced by the netnames BIRDIE-CIDR-BLK-JP and DUAL-NET registered with the Japan Network Information Center.
  • The network announces 1280 IPv4 addresses across 2 prefixes and 3 IPv6 prefixes, with only 2 observed routing neighbours, indicating a small-scale internal or business network rather than a transit or access provider.
  • Traffic from this AS consists of business endpoints and internal services for dual&Co. Inc., a Japanese company operating in the digital content and technology sector.

Notable

  • Registrants for both announced IPv4 prefixes are listed as Japan Network Information Center, consistent with the announcer's identity as a Japanese entity.
  • The address inventory is compact, comprising one /22 and one /24 in IPv4, alongside three IPv6 prefixes including a large /33 block.

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

ASNetworkPaths seen
AS2497Internet Initiative Japan Inc.184

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 2 prefixes · 1.28K addresses IPv6 3 prefixes

CountryNamePrefixes
JPJapan5

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS63773
Registry name
DUAL-NET
Registered
2014-08-25
Last changed
2019-11-14
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
dual & Co. AS63773
Also known as
DUAL-NET
Network type
Content
Scope
Regional
Traffic ratio
Mostly Outbound
Peering policy
Open
Website
https://dual.tokyo/

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
0% valid · 0 valid, 4 with no ROA
ROAs
0 authorising AS63773
ASPA
no ASPA record
IRR
0% registered · 0 of 4 announcements
Route objects
0 naming AS63773

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

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