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AS15395
RACKSPACE-LON

AS15395 announces 402,176 IPv4 addresses across 37 routed ranges, registered in GB. Figures come from the public global routing table and are refreshed daily.

402K addressesIPv4 space announced
37Routed ranges
GBRegistry country

Is AS15395 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 37 announced ranges.

Range startRange endAddresses
5.79.0.05.79.63.25516,384
31.222.128.031.222.191.25516,384
37.188.96.037.188.127.2558,192
46.38.160.046.38.191.2558,192
46.227.46.046.227.46.255256
65.61.188.065.61.188.255256
72.13.112.072.13.113.255512
72.21.40.072.21.47.2552,048
77.246.32.077.246.47.2554,096
78.136.0.078.136.63.25516,384
82.211.66.082.211.67.255512
83.138.128.083.138.191.25516,384
89.234.0.089.234.63.25516,384
92.52.64.092.52.127.25516,384
94.236.0.094.236.127.25532,768
95.138.128.095.138.191.25516,384
134.0.72.0134.0.73.255512
134.0.74.0134.0.75.255512
134.0.76.0134.0.79.2551,024
134.8.0.0134.8.0.255256
134.213.0.0134.213.255.25565,536
146.177.0.0146.177.19.2555,120
146.177.22.0146.177.55.2558,704
146.177.57.0146.177.73.2554,352
146.177.75.0146.177.255.25546,336
147.75.20.0147.75.23.2551,024
162.13.0.0162.13.255.25565,536
164.138.226.0164.138.226.255256
164.177.128.0164.177.159.2558,192
185.55.189.0185.55.189.255256
185.144.228.0185.144.231.2551,024
193.138.122.0193.138.122.255256
193.142.244.0193.142.244.255256
209.18.112.0209.18.115.2551,024
212.64.128.0212.64.159.2558,192
212.100.224.0212.100.255.2558,192
217.72.240.0217.72.255.2554,096

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 5.79.0.0, 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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