asn.dev

Autonomous system

AS23827 ANC-NET Azumino Network Community TV

Unclassified RIPE Cable/DSL/ISP

IPv4 addresses 7.68K 4 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly JP
Exchanges 2 recorded by PCH
Upstreams 5 0 downstream
Flagged prefixes 0 none

Summary

Azumino Network Community TV

Japan · AI-generated

cable residential japan tv

The AS handle ANC-NET is held by Azumino Network Community TV.

What it's used for

  • The space carries residential cable access, evidenced by reverse DNS entries like pc09254.anc-tv.ne.jp and pc19254.anc-tv.ne.jp under the anc-tv.ne.jp domain.
  • The network announces 7680 IPv4 addresses across 4 prefixes and 1 IPv6 prefix, with 14 observed neighbours, indicating a local access provider role.

Notable

  • All registrants for the announced prefixes are listed as Japan Network Information Center (JPNIC), which is consistent with the standard allocation process for Japanese ISPs.
  • The address inventory consists of four distinct IPv4 blocks, including a /20, a /21, a /22, and a /23, all under the netname ANC-Net-CIDR-BLK-JP.

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

Recorded at 2 exchanges in 1 country, largest first.

ExchangeLocationTheir address
BroadBand Internet eXchange TokyoTokyo, Japan101.203.90.91
JPIX TokyoTokyo, Japan210.171.224.213

Transit providers

5 upstream, 0 downstream and 9 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS2519ARTERIA Networks Corporation137
AS17676SoftBank Corp.62
AS6939Hurricane Electric LLC55
AS24482SG.GS5
AS9002RETN Limited4

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 4 prefixes · 7.68K addresses IPv6 1 prefixes

CountryNamePrefixes
JPJapan5

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS23827
Registry name
ANC-Net
Registered
2003-06-16
Last changed
2004-09-22
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
AZUMINO TELEVISION Co.,Ltd.
Also known as
ANC
Network type
Cable/DSL/ISP
Scope
Regional
Traffic ratio
Mostly Inbound
Peering policy
Open
Present at
2 exchanges
Facilities
2 facilities
Website
http://www.anc-tv.co.jp/

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 · 5 valid, 0 with no ROA
ROAs
6 authorising AS23827
ASPA
no ASPA record
IRR
40% registered · 2 of 5 announcements
Route objects
2 naming AS23827

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: 447 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