AS131963 MC Digital Realty, Inc.

MCDR-KIX - MC Digital Realty, Inc. · registered in Japan

IPv4 addresses1,0241 prefixes · <0.001% of announced IPv4

Rank in Japan#527largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#30,641of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryJapan745 ASNs registered there

Open AS131963 in ASN lookup Look up an IP in this network (103.16.216.1) All networks in Japan

IPv4 prefixes

All 1 prefix, in address order.

103.16.216.0/22

IPv6 prefixes

All 1 prefix.

2406:f240::/32

Other ASNs named MC Digital Realty, Inc.

1 other network uses the same organisation name; together with AS131963 they announce 3,072 IPv4 addresses.

ASNNameIPv4 addresses

AS131987MCDR-NRT - MC Digital Realty, Inc. JP2,048

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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