AS23633 — LOCAL-IX - Niigata Communication Service

Network type: hosting

AS23633 announces 1 IPv4 prefixes covering 2,048 addresses and 0 IPv6 prefixes.

About this network

LOCAL-IX is the AS handle for Niigata Communication Service, a regional internet service provider operating in Japan.

What it's used for

• The address space carries local internet access traffic, evidenced by the reverse DNS record n254.m149.ix1.co.jp which points to the operator's domain ix1.co.jp.
• The AS announces 2048 IPv4 addresses within a single prefix (202.59.144.0/21) and maintains 10 observed neighbours, a ratio consistent with a regional access network rather than a transit provider.

Notable

• The RDAP registrant for the announced prefix is Japan Network Information Center (JPNIC), which is the standard registry for Japanese IP space and aligns with the local operator's identity.
• The address inventory consists of a single contiguous /21 block, indicating a compact and focused allocation typical of a local ISP.

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

Announced prefixes

• 202.59.144.0/21

Upstream networks

• AS7529 GMO NetIRD, Inc.
• AS6939 Hurricane Electric LLC
• AS9601 Niigata Communication Service
• AS24482 SG.GS

Adjacent networks

• AS7529 GMO NetIRD, Inc.
• AS6939 Hurricane Electric LLC
• AS9601 Niigata Communication Service
• AS24482 SG.GS

Routing security

• RPKI: 0 valid, 0 invalid and 1 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 4 route objects.
• Listed in as-sets: AS-ANC, AS-BBIX-T, AS-EXCHANGE, AS-GCTR-JP, AS-IIJ, AS-KDDCUSTOMER2, AS-NETIRD, AS-OCN, AS-OCN, AS-PACNET, AS-PACNET-CUSTOMER-PROXY-REGISTER, AS-PACNET-DOWNSTREAM-JP, AS-TELSTRA-INTL-CUSTOMERS, AS-XO-B, AS2497:AS-IIJ.