asn.dev

Autonomous system

AS17530 NNS - Nihon Network Service Co, .Ltd.

Unclassified RIPE

IPv4 addresses 38.91K 4 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

Nihon Network Service

Japan · AI-generated

business japan ccnet nns

NNS is the AS handle for Nihon Network Service Co., Ltd., a Japanese network operator.

What it's used for

  • The address space carries corporate and network infrastructure, evidenced by reverse DNS names such as nns.ne.jp, ccnetptb.*.nns.ne.jp, and ubr04b254.nns.ne.jp.
  • The AS announces 38,912 IPv4 addresses across 4 prefixes and 1 IPv6 prefix, with only 1 observed neighbour, indicating a small, self-contained internal corporate estate rather than a large access or transit network.

Notable

  • All registrants for the announced prefixes are listed as Japan Network Information Center with the netname CCNET or CCNET-CIDR-BLK-JP, which aligns with the operator's historical association with the CCNET (Computer Center Network) infrastructure in Japan.
  • The address inventory consists of four distinct IPv4 blocks, including two /18s, one /20, and one /21, along with a single /32 IPv6 prefix, reflecting a finely subdivided internal allocation.

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
AS17683Wingtechnology Communications, Inc.275

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-02, 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 4 prefixes · 38.91K addresses IPv6 1 prefixes

CountryNamePrefixes
JPJapan5

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS17530
Registry name
NNS
Abuse contact
hostmaster@nic.ad.jp
Registered
2000-12-12
Last changed
2005-03-09
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 5 valid, 0 with no ROA
ROAs
5 authorising AS17530
ASPA
no ASPA record
IRR
100% registered · 5 of 5 announcements
Route objects
5 naming AS17530

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: 449 networks and 1,846 prefixes, as published 2026-11-03. 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