asn.dev

Autonomous system

AS7677 DNP Dai Nippon Printing Co., Ltd

Unclassified APNIC

IPv4 addresses 13.57K 16 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

Dai Nippon Printing Co., Ltd.

Japan · AI-generated

enterprise hosting legacy

DNP is Dai Nippon Printing Co., Ltd., one of the world's largest printing companies and, in practice, a diversified Japanese manufacturer — packaging, display components, smart cards and IT services alongside the printing business.

What it's used for

  • About 13,600 addresses across seventeen prefixes, chiefly 157.101.224.0/19 and 210.133.96.0/20. No IPv6 is announced.
  • Reverse DNS splits two ways. Most of it is the company's own infrastructure in dnp.co.jp and dnp.ad.jp, including hosts under kdc.dnp.ad.jp — the Kashiwa data centre. The rest sits in mediagalaxy.ne.jp, the brand DNP has used for managed hosting and cloud since 1998, with machine-numbered names of the hNNNNNNNNNNNN.mediagalaxy.ne.jp form.

Notable

  • Primarily an enterprise network — a large manufacturer's corporate IT — with a genuine managed-hosting business attached. Neither half is subscriber space; there are no dial-up, PPPoE or DHCP-style pools anywhere in it.
  • A minority of prefixes reverse into customer-facing service domains, which is what you would expect from hosted web properties rather than from an access ISP.

Interesting

  • The MediaGalaxy platform is PCI DSS certified for card-payment workloads, which is an unusual thing to find behind a printing company's AS — and a reminder that Japanese insatsu firms moved into secure data and IT services decades ago.

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
AS32787Akamai Technologies, Inc.420
AS4713NTT DOCOMO BUSINESS,Inc.340
AS2519ARTERIA Networks Corporation307

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 16 prefixes · 13.57K addresses IPv6 0 prefixes

CountryNamePrefixes
JPJapan16

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS7677
Registry name
DNP
Registered
1997-11-13
Last changed
2023-04-06
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
39% valid · 7 valid, 11 with no ROA
ROAs
7 authorising AS7677
ASPA
no ASPA record
IRR
100% registered · 18 of 18 announcements
Route objects
52 naming AS7677

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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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