AS23827 — ANC-NET Azumino Network Community TV

AS23827 announces 4 IPv4 prefixes covering 7,680 addresses and 1 IPv6 prefixes.

About this network

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.

Announced prefixes

• 103.141.34.0/23
• 115.31.80.0/21
• 202.84.48.0/20
• 202.226.56.0/22
• 2405:7740::/32

Upstream networks

• AS2519 ARTERIA Networks Corporation
• AS17676 SoftBank Corp.
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS9002 RETN Limited

Adjacent networks

• AS2519 ARTERIA Networks Corporation
• AS17676 SoftBank Corp.
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS9002 RETN Limited

Routing security

• RPKI: 5 valid, 0 invalid and 0 not-found announcements; 6 ROAs.
• ASPA: none published.
• IRR: 40% of announcements registered; 2 route objects.
• Listed in as-sets: AS-BBIX-T, AS-BBIX-T-V6, AS-GIGAINFRA, AS-IIJ, AS-IIJ6, AS-IPV6_VECTANT, AS-KDD, AS-KDDI6, AS-VECTANT, AS2497:AS-IIJ, AS2497:AS-IIJ6.

Internet exchanges

• BroadBand Internet eXchange Tokyo — Tokyo, Japan
• JPIX Tokyo — Tokyo, Japan