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AS39891
ALJAWWALSTC-AS

AS39891 announces 1,238,272 IPv4 addresses across 64 routed ranges, registered in SA. Figures come from the public global routing table and are refreshed daily.

1.2M addressesIPv4 space announced
64Routed ranges
SARegistry country

Is AS39891 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 64 announced ranges.

Range startRange endAddresses
2.90.64.02.90.255.25549,152
5.41.0.05.41.255.25565,536
5.156.0.05.156.255.25565,536
5.163.32.05.163.95.25516,384
37.224.0.037.224.3.2551,024
37.224.64.037.224.67.2551,024
37.224.128.037.224.135.2552,048
37.224.160.037.224.191.2558,192
37.224.200.037.224.207.2552,048
37.224.224.037.224.255.2558,192
51.211.128.051.211.159.2558,192
51.235.32.051.235.127.25524,576
51.235.160.051.235.255.25524,576
51.252.0.051.252.191.25549,152
51.253.0.051.253.255.25565,536
64.65.64.064.65.127.25516,384
64.137.192.064.137.255.25516,384
66.118.128.066.118.191.25516,384
77.31.192.077.31.255.25516,384
78.95.0.078.95.255.25565,536
93.168.0.093.169.255.255131,072
94.158.64.094.158.71.2552,048
95.184.0.095.184.127.25532,768
95.185.0.095.187.255.255196,608
104.233.64.0104.233.127.25516,384
128.234.96.0128.234.127.2558,192
128.234.224.0128.234.255.2558,192
129.208.64.0129.208.95.2558,192
129.208.192.0129.208.223.2558,192
151.254.0.0151.255.46.25577,568
151.255.47.0151.255.255.25553,504
155.138.64.0155.138.127.25516,384
159.0.186.0159.0.186.255256
159.0.188.0159.0.191.2551,024
176.47.0.0176.47.127.25532,768
178.86.0.0178.86.47.25512,288
185.2.232.0185.2.235.2551,024
185.120.104.0185.120.107.2551,024
185.139.8.0185.139.11.2551,024
185.167.202.0185.167.202.255256
188.49.192.0188.49.223.2558,192
188.50.32.0188.50.63.2558,192
188.50.224.0188.50.255.2558,192
188.51.128.0188.51.159.2558,192
188.51.192.0188.51.223.2558,192
188.52.128.0188.52.159.2558,192
188.52.208.0188.52.211.2551,024
188.52.220.0188.52.223.2551,024
188.52.228.0188.52.231.2551,024
188.53.0.0188.53.7.2552,048
188.53.16.0188.53.23.2552,048
188.53.32.0188.53.39.2552,048
188.53.44.0188.53.67.2556,144
188.53.72.0188.53.79.2552,048
188.53.96.0188.53.127.2558,192
188.53.196.0188.53.231.2559,216
188.54.128.0188.54.159.2558,192
188.55.8.0188.55.15.2552,048
188.55.17.0188.55.17.255256
188.55.32.0188.55.63.2558,192
212.215.129.0212.215.129.255256
212.215.208.0212.215.219.2553,072
212.215.232.0212.215.235.2551,024
212.215.238.0212.215.238.255256

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 2.90.64.0, 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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