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AS3741
IS

AS3741 announces 2,612,992 IPv4 addresses across 315 routed ranges, registered in ZA. Figures come from the public global routing table and are refreshed daily.

2.6M addressesIPv4 space announced
315Routed ranges
ZARegistry country

Is AS3741 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

First 100 of 315 ranges.

Range startRange endAddresses
41.77.104.041.77.111.2552,048
41.86.110.041.86.111.255512
41.86.116.041.86.119.2551,024
45.149.227.045.149.227.255256
85.118.154.085.118.154.255256
102.65.32.0102.65.35.2551,024
139.53.0.0139.53.255.25565,536
152.111.1.0152.111.6.2551,536
152.111.8.0152.111.12.2551,280
152.111.14.0152.111.37.2556,144
152.111.41.0152.111.41.255256
152.111.43.0152.111.47.2551,280
152.111.51.0152.111.51.255256
152.111.53.0152.111.56.2551,024
152.111.59.0152.111.59.255256
152.111.67.0152.111.69.255768
152.111.73.0152.111.73.255256
152.111.77.0152.111.79.255768
152.111.85.0152.111.85.255256
152.111.94.0152.111.95.255512
152.111.99.0152.111.101.255768
152.111.103.0152.111.105.255768
152.111.108.0152.111.109.255512
152.111.130.0152.111.137.2552,048
152.111.143.0152.111.146.2551,024
152.111.148.0152.111.149.255512
152.111.151.0152.111.151.255256
152.111.154.0152.111.155.255512
152.111.159.0152.111.159.255256
152.111.162.0152.111.163.255512
152.111.165.0152.111.168.2551,024
152.111.172.0152.111.175.2551,024
152.111.177.0152.111.177.255256
152.111.180.0152.111.180.255256
152.111.182.0152.111.183.255512
152.111.185.0152.111.188.2551,024
152.111.190.0152.111.198.2552,304
152.111.200.0152.111.200.255256
152.111.204.0152.111.204.255256
152.111.206.0152.111.207.255512
152.111.210.0152.111.212.255768
152.111.215.0152.111.216.255512
152.111.219.0152.111.219.255256
152.111.221.0152.111.221.255256
152.111.223.0152.111.225.255768
152.111.230.0152.111.230.255256
152.111.232.0152.111.235.2551,024
152.111.239.0152.111.242.2551,024
152.111.244.0152.111.248.2551,280
152.111.250.0152.111.252.255768
152.111.254.0152.111.254.255256
155.234.0.0155.234.255.25565,536
155.237.0.0155.237.255.25565,536
155.240.0.0155.240.153.25539,424
155.240.154.0155.240.159.2551,536
156.8.0.0156.8.254.25565,280
156.8.255.0156.8.255.255256
160.48.233.0160.48.234.255512
160.123.0.0160.123.195.25550,176
160.123.199.0160.123.235.2559,472
160.123.242.0160.123.253.2553,072
163.199.96.0163.199.99.2551,024
163.199.101.0163.199.101.255256
163.199.104.0163.199.111.2552,048
163.199.136.0163.199.136.255256
163.203.0.0163.203.127.25532,768
163.203.128.0163.203.224.25524,832
163.203.225.0163.203.255.2557,936
164.148.0.0164.150.255.255196,608
165.4.0.0165.4.12.2553,328
165.4.13.0165.4.20.2552,048
165.4.21.0165.4.22.255512
165.4.23.0165.4.255.25559,648
168.89.0.0168.89.19.2555,120
168.89.21.0168.89.75.25514,080
168.89.77.0168.89.255.25545,824
168.142.0.0168.142.55.25514,336
168.142.56.0168.142.73.2554,608
168.142.74.0168.142.128.25514,080
168.142.129.0168.142.194.25516,896
168.142.195.0168.142.207.2553,328
168.142.208.0168.142.216.2552,304
168.142.217.0168.142.221.2551,280
168.142.222.0168.142.241.2555,120
168.142.242.0168.142.255.2553,584
168.209.0.0168.209.106.25527,392
168.209.107.0168.209.255.25538,144
168.210.2.0168.210.2.255256
168.210.16.0168.210.19.2551,024
168.210.24.0168.210.25.255512
168.210.41.0168.210.41.255256
168.210.80.0168.210.81.255512
168.210.112.0168.210.112.255256
168.210.114.0168.210.114.255256
168.210.208.0168.210.208.255256
168.210.232.0168.210.233.255512
169.202.201.0169.202.202.255512
192.94.242.0192.94.242.255256
192.96.1.0192.96.1.255256
192.96.22.0192.96.22.255256

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 41.77.104.0, 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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