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AS138384
RMNI-AS-AP Rakuten Mobile Network, Inc.

AS138384 announces 420,864 IPv4 addresses across 24 routed ranges, registered in JP. Figures come from the public global routing table and are refreshed daily.

421K addressesIPv4 space announced
24Routed ranges
JPRegistry country

Is AS138384 datacenter space?

Not according to the nine cloud and CDN providers whose published range lists we track. That is a statement about those specific lists, not proof the space is residential — plenty of hosting companies never publish machine-readable ranges, and this AS may well be one of them.

The reliable way to classify a specific address is to check it directly rather than to infer from the AS. The free lookup tool returns live tunnel and datacenter signals for any address.

What an AS number does and does not tell you

An autonomous system number identifies who announces a block of addresses to the internet's routing table. It is an organisational fact, and a durable one — useful for attributing traffic to a hosting company, a carrier, or a university.

It is not a risk signal. A residential ISP's AS carries the household traffic of millions of ordinary customers and, at the same time, whatever residential proxy exits have been installed on those customers' devices. A hosting AS carries scrapers and legitimate server-to-server integrations in the same ranges. Scoring an address on the reputation of its AS produces exactly the false positives that make fraud tooling untrustworthy.

Sentinel does not feed AS names or routing data into its risk score. Tunnel detection comes from live network intelligence, and the dch signal comes from provider-published ranges. This directory exists to answer "who announces this address," which is a different and genuinely useful question.

Announced IPv4 ranges

All 24 announced ranges.

Range startRange endAddresses
101.102.0.0101.102.63.25516,384
103.124.0.0103.124.3.2551,024
110.165.128.0110.165.255.25532,768
119.30.192.0119.30.255.25516,384
119.31.128.0119.31.159.2558,192
133.106.8.0133.106.255.25563,488
157.192.0.0157.192.255.25565,536
193.82.160.0193.82.191.2558,192
193.114.32.0193.114.95.25516,384
193.114.192.0193.115.31.25524,576
193.117.96.0193.117.127.2558,192
193.118.0.0193.118.31.2558,192
193.118.64.0193.118.95.2558,192
193.119.128.0193.119.255.25532,768
194.193.64.0194.193.95.2558,192
194.193.224.0194.193.255.2558,192
194.223.96.0194.223.127.2558,192
202.176.16.0202.176.31.2554,096
202.216.0.0202.216.15.2554,096
210.157.192.0210.157.223.2558,192
211.7.96.0211.7.127.2558,192
211.133.160.0211.133.191.2558,192
219.105.144.0219.105.159.2554,096
219.105.192.0219.106.127.25549,152

Check a specific address

The AS tells you who announces a range. Whether one address inside it is currently a tunnel is a live question, answered per address — for example 101.102.0.0, the first address in this AS's announced space. The free lookup tool takes any address, and the IP intelligence hub explains what each signal means.

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