AS63776 Mercari, Inc.

MERCARI-JP - Mercari, Inc. · registered in Japan

IPv4 addresses7682 prefixes · <0.001% of announced IPv4

Rank in Japan#567largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#43,108of 79,396 networks with IPv4

IPv6512 x /481 prefixes

CountryJapan745 ASNs registered there

Open AS63776 in ASN lookup Look up an IP in this network (103.123.180.1) All networks in Japan

IPv4 prefixes

All 2 prefixes, in address order.

103.123.180.0/23
103.123.183.0/24

IPv6 prefixes

All 1 prefix.

2403:a640::/39

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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