AS24277 — NIRAI Okinawa Cable Network Inc.

AS24277 announces 4 IPv4 prefixes covering 18,432 addresses and 1 IPv6 prefixes.

About this network

The AS handle NIRAI is held by Okinawa Cable Network Inc.

What it's used for

• The address space carries residential and business customer traffic, evidenced by the reverse DNS record sp-c-static27254.nirai.ne.jp and the netname NIRAI-CIDR-BLK-JP.
• The AS announces 18,432 IPv4 addresses across 4 prefixes and 1 IPv6 prefix, while maintaining 14 observed neighbours; this ratio of address space to peering partners is consistent with a regional access provider rather than a transit hub.

Notable

• All four announced IPv4 prefixes are registered to the Japan Network Information Center (JPNIC) under the netname NIRAI-CIDR-BLK-JP, aligning the registrant data with the AS holder.
• The operator is identified in peering databases as a Cable/DSL/ISP, confirming its role as a local internet service provider in Okinawa.
• The inventory consists of four distinct IPv4 blocks and a single /32 IPv6 prefix, indicating a focused regional footprint.

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

Announced prefixes

• 115.166.160.0/19
• 115.166.192.0/20
• 122.128.112.0/21
• 203.160.16.0/20
• 2407:58c0::/32

Upstream networks

• AS9607 BroadBand Tower, Inc.
• AS55900 GLBB Japan KK
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS9002 RETN Limited

Adjacent networks

• AS9607 BroadBand Tower, Inc.
• AS55900 GLBB Japan KK
• 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: 0% of announcements registered; 0 route objects.
• Listed in as-sets: AS-ANC-CUSTOMER-PROXY-REGISTER, AS-BBIX-T, AS-BBIX-T-V6, AS-GCTR-JP, AS-GIGAINFRA, AS-GIGAINFRA-V6, AS-GLBB-TRANSIT, AS-HURRICANEV6, AS-IIJ, AS-IIJ6, AS-KDD, AS-KDDCUSTOMER2, AS-MCNET, AS-OCN, AS-OCN, AS-OCN-V6, AS-OCN-V6, AS-PACNET-CUSTOMER-PROXY-REGISTER, AS-TELSTRA-INTL-CUSTOMERS, AS-TRANSROUTE-SPEC, AS-VECTANT, AS-XO-B, AS2497:AS-IIJ, AS2497:AS-IIJ6.

Internet exchanges

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