AS142052 Mempool Space K.K.

MEMPOOLSPACEKK-AS-AP - Mempool Space K.K. · registered in Japan

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in Japan#601largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#48,105of 79,396 networks with IPv4

IPv62 x /481 prefixes

CountryJapan745 ASNs registered there

Open AS142052 in ASN lookup Look up an IP in this network (103.165.192.1) All networks in Japan

IPv4 prefixes

All 1 prefix, in address order.

103.165.192.0/23

IPv6 prefixes

All 1 prefix.

2001:df6:7280::/47

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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