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AS3758
SINGNET SingNet

AS3758 announces 704,512 IPv4 addresses across 292 routed ranges, registered in SG. Figures come from the public global routing table and are refreshed daily.

705K addressesIPv4 space announced
292Routed ranges
SGRegistry country

Is AS3758 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 292 ranges.

Range startRange endAddresses
2.56.56.02.56.59.2551,024
31.210.22.031.210.23.255512
37.0.10.037.0.11.255512
42.60.138.042.60.139.255512
42.60.202.042.60.203.255512
42.60.228.042.60.229.255512
42.60.248.042.60.249.255512
42.61.0.042.61.5.2551,536
42.61.6.042.61.10.2551,280
42.61.11.042.61.15.2551,280
42.61.16.042.61.22.2551,792
42.61.23.042.61.25.255768
42.61.26.042.61.31.2551,536
42.61.32.042.61.46.2553,840
42.61.47.042.61.51.2551,280
42.61.52.042.61.60.2552,304
42.61.61.042.61.65.2551,280
42.61.66.042.61.71.2551,536
42.61.72.042.61.104.2558,448
42.61.105.042.61.123.2554,864
42.61.124.042.61.127.2551,024
42.61.129.042.61.255.25532,512
45.86.188.045.86.189.255512
45.135.4.045.135.7.2551,024
45.144.198.045.144.199.255512
58.185.0.058.185.5.2551,536
58.185.6.058.185.15.2552,560
58.185.16.058.185.21.2551,536
58.185.22.058.185.63.25510,752
58.185.64.058.185.93.2557,680
58.185.94.058.185.178.25521,760
58.185.179.058.185.183.2551,280
58.185.184.058.185.190.2551,792
58.185.191.058.185.201.2552,816
58.185.202.058.185.207.2551,536
58.185.208.058.185.240.2558,448
58.185.241.058.185.248.2552,048
58.185.249.058.185.251.255768
58.185.252.058.185.255.2551,024
80.94.89.080.94.89.255256
85.202.168.085.202.171.2551,024
85.203.24.085.203.24.255256
85.203.35.085.203.35.255256
91.103.9.091.103.9.255256
91.217.236.091.217.236.255256
101.78.127.0101.78.127.255256
103.186.249.0103.186.249.255256
111.65.100.0111.65.100.255256
111.65.102.0111.65.127.2556,656
115.42.128.0115.42.181.25513,824
115.42.182.0115.42.185.2551,024
115.42.186.0115.42.204.2554,864
115.42.205.0115.42.206.255512
115.42.207.0115.42.217.2552,816
115.42.218.0115.42.219.255512
115.42.220.0115.42.222.255768
115.42.223.0115.42.251.2557,424
115.42.252.0115.42.255.2551,024
115.66.56.0115.66.63.2552,048
116.12.128.0116.12.147.2555,120
116.12.148.0116.12.154.2551,792
116.12.155.0116.12.156.255512
116.12.157.0116.12.214.25514,848
116.12.215.0116.12.226.2553,072
116.12.227.0116.12.229.255768
116.12.230.0116.12.238.2552,304
116.12.239.0116.12.243.2551,280
116.12.244.0116.12.255.2553,072
116.15.120.0116.15.123.2551,024
117.58.175.0117.58.175.255256
118.200.128.0118.200.129.255512
118.200.131.0118.200.132.255512
118.200.134.0118.200.135.255512
118.200.138.0118.200.138.255256
118.200.140.0118.200.142.255768
118.200.144.0118.200.147.2551,024
118.200.149.0118.200.174.2556,656
118.200.176.0118.200.178.255768
118.200.180.0118.200.183.2551,024
118.200.186.0118.200.187.255512
118.200.189.0118.200.189.255256
118.200.191.0118.200.191.255256
118.201.0.0118.201.6.2551,792
118.201.7.0118.201.11.2551,280
118.201.32.0118.201.44.2553,328
118.201.45.0118.201.65.2555,376
118.201.66.0118.201.68.255768
118.201.69.0118.201.75.2551,792
118.201.76.0118.201.80.2551,280
118.201.82.0118.201.89.2552,048
118.201.90.0118.201.99.2552,560
118.201.100.0118.201.134.2558,960
118.201.135.0118.201.136.255512
118.201.137.0118.201.178.25510,752
118.201.179.0118.201.188.2552,560
118.201.189.0118.201.190.255512
118.201.191.0118.201.193.255768
118.201.194.0118.201.201.2552,048
118.201.202.0118.201.207.2551,536
118.201.208.0118.201.212.2551,280

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 2.56.56.0, 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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