AS24290 Heart Network Co.,LTD

HEARTNET - Heart Network Co.,LTD · registered in Japan

IPv4 addresses2,0481 prefixes · <0.001% of announced IPv4

Rank in Japan#464largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#23,021of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryJapan745 ASNs registered there

Open AS24290 in ASN lookup Look up an IP in this network (203.174.88.1) All networks in Japan

IPv4 prefixes

All 1 prefix, in address order.

203.174.88.0/21

Similar-sized networks in Japan

ASNNameIPv4 addresses

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AS37915#466 Ke-net - Wakayama Prefectural Government2,048

AS38642#467 YOSHIZOU - Yoshizou XYZ Solutions2,048

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources