AS23720 Rakuten Mobile Network, Inc.

RMNI-AS-AP - Rakuten Mobile Network, Inc. · registered in Japan

IPv4 addresses66,3049 prefixes · 0.002% of announced IPv4

Rank in Japan#107largest network in JP by IPv4 space, of 724 · 0.04% of JP

Rank worldwide#2,671of 79,396 networks with IPv4

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

CountryJapan745 ASNs registered there

Open AS23720 in ASN lookup Look up an IP in this network (27.111.76.1) All networks in Japan

IPv4 prefixes

All 9 prefixes, in address order.

27.111.76.0/22
203.216.0.0/17
218.251.128.0/18
218.251.192.0/20
218.251.208.0/21
218.251.216.0/22
218.251.221.0/24
218.251.222.0/23
218.251.224.0/19

IPv6 prefixes

All 1 prefix.

2403:d000::/32

Other ASNs named Rakuten Mobile Network, Inc.

1 other network uses the same organisation name; together with AS23720 they announce 487,168 IPv4 addresses.

ASNNameIPv4 addresses

AS138384RMNI-AS-AP - Rakuten Mobile Network, Inc. JP420,864

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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