AS59108 — KATCH-NET - KATCH NETWORK INC.

AS59108 announces 15 IPv4 prefixes covering 96,256 addresses and 2 IPv6 prefixes.

About this network

KATCH-NET is operated by Katch Network Inc., a Japanese cable television and telecommunications provider based in Kariya, Aichi.

What it's used for

• The address space carries residential broadband traffic, evidenced by reverse DNS entries such as d-117-74-47-254.ftth.katch.ne.jp and d-182-23-247-254.ftth.katch.ne.jp, which indicate fiber-to-the-home (FTTH) subscriber endpoints.
• The AS announces 96,256 IPv4 addresses across 15 prefixes and 1 IPv6 prefix, while maintaining only 1 observed routing neighbour. This high address-to-neighbour ratio is characteristic of an access network aggregating local subscriber traffic rather than a transit provider.
• Traffic from this AS consists of residential internet connectivity, cable television broadcasting, and telephone services for households in the Kariya region.

Notable

• Registrants for the largest prefixes are listed as Japan Network Information Center (JPNIC) with netnames KATCH-NET and KATCH-CIDR-BLK-JP, consistent with the AS holder.
• The inventory includes a mix of /18, /19, /20, and /21 blocks, with the largest being 117.74.0.0/18.
• The single IPv6 prefix 2405:7000:400::/40 is announced alongside the IPv4 space.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 58.145.160.0/21
• 61.215.176.0/20
• 117.58.144.0/20
• 117.74.0.0/18
• 153.124.208.0/20
• 182.23.224.0/19
• 202.243.64.0/19
• 203.140.176.0/20
• 210.79.32.0/20
• 210.171.80.0/20
• 210.236.64.0/19
• 211.14.224.0/19
• 218.40.128.0/20
• 219.99.224.0/19
• 219.121.128.0/19
• 2405:7000:400::/40
• 2405:7000:6000::/36

Upstream networks

• AS9354 Community Network Center Inc.

Adjacent networks

• AS9354 Community Network Center Inc.

Routing security

• RPKI: 47 valid, 0 invalid and 0 not-found announcements; 17 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 93 route objects.
• Listed in as-sets: AS-BBIX-T, AS-BBIX-T-V6, AS-CNCI, AS-CNCI, AS-HURRICANEV6, AS-IIJ, AS-IIJ6, AS-KDD, AS-KDDCUSTOMER2, AS-KDDI6, AS-MESH-CUSTOMER:AS9354, AS-TELSTRA-INTL-CUSTOMERS, AS-TELSTRA-INTL-CUSTOMERS-4637, AS-VECTANT, AS2497:AS-IIJ, AS2497:AS-IIJ6.