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AS4657
STARHUB-INTERNET StarHub Ltd

AS4657 announces 392,960 IPv4 addresses across 108 routed ranges, registered in SG. Figures come from the public global routing table and are refreshed daily.

393K addressesIPv4 space announced
108Routed ranges
SGRegistry country

Is AS4657 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 108 announced ranges.

Range startRange endAddresses
23.206.180.023.206.183.2551,024
27.54.0.027.54.31.2558,192
27.54.36.027.54.36.255256
27.54.38.027.54.59.2555,632
27.54.60.027.54.63.2551,024
38.46.202.038.46.203.255512
43.227.228.043.227.229.255512
45.65.0.045.65.1.255512
61.8.192.061.8.199.2552,048
61.8.200.061.8.205.2551,536
61.8.206.061.8.216.2552,816
61.8.217.061.8.224.2552,048
61.8.225.061.8.255.2557,936
101.127.192.0101.127.199.2552,048
101.127.206.0101.127.239.2558,704
101.127.248.0101.127.250.255768
101.127.251.0101.127.255.2551,280
103.17.144.0103.17.147.2551,024
103.28.208.0103.28.211.2551,024
103.149.23.0103.149.23.255256
103.254.252.0103.254.254.255768
111.223.64.0111.223.69.2551,536
111.223.70.0111.223.127.25514,848
113.10.64.0113.10.95.2558,192
117.20.132.0117.20.139.2552,048
117.20.148.0117.20.149.255512
117.20.154.0117.20.159.2551,536
122.11.128.0122.11.144.2554,352
122.11.145.0122.11.146.255512
122.11.147.0122.11.149.255768
122.11.160.0122.11.163.2551,024
122.11.164.0122.11.168.2551,280
122.11.173.0122.11.177.2551,280
122.11.178.0122.11.180.255768
122.11.182.0122.11.182.255256
122.11.187.0122.11.195.2552,304
122.11.198.0122.11.210.2553,328
122.11.211.0122.11.215.2551,280
122.11.220.0122.11.233.2553,584
122.11.234.0122.11.244.2552,816
122.11.245.0122.11.250.2551,536
122.11.251.0122.11.255.2551,280
124.155.192.0124.155.215.2556,144
124.155.217.0124.155.222.2551,536
124.155.223.0124.155.223.255256
171.0.0.0171.0.63.25516,384
171.0.96.0171.0.127.2558,192
171.1.128.0171.1.255.25532,768
171.207.64.0171.207.127.25516,384
182.19.150.0182.19.151.255512
182.19.252.0182.19.252.255256
182.19.255.0182.19.255.255256
182.55.0.0182.55.7.2552,048
182.55.160.0182.55.231.25518,432
182.55.238.0182.55.245.2552,048
182.55.247.0182.55.255.2552,304
183.90.0.0183.90.47.25512,288
183.90.64.0183.90.79.2554,096
183.90.96.0183.90.127.2558,192
202.156.4.0202.156.4.255256
202.156.10.0202.156.10.255256
202.156.16.0202.156.49.2558,704
202.156.50.0202.156.53.2551,024
202.156.54.0202.156.55.255512
202.156.56.0202.156.63.2552,048
203.116.0.0203.116.27.2557,168
203.116.28.0203.116.30.255768
203.116.31.0203.116.55.2556,400
203.116.56.0203.116.60.2551,280
203.116.61.0203.116.76.2554,096
203.116.77.0203.116.82.2551,536
203.116.83.0203.116.95.2553,328
203.116.96.0203.116.98.255768
203.116.99.0203.116.105.2551,792
203.116.106.0203.116.106.255256
203.116.108.0203.116.114.2551,792
203.116.117.0203.116.118.255512
203.116.120.0203.116.121.255512
203.116.122.0203.116.127.2551,536
203.116.128.0203.116.139.2553,072
203.116.140.0203.116.141.255512
203.116.142.0203.116.155.2553,584
203.116.156.0203.116.175.2555,120
203.116.176.0203.116.180.2551,280
203.116.182.0203.116.204.2555,888
203.116.205.0203.116.217.2553,328
203.116.218.0203.116.221.2551,024
203.116.222.0203.116.247.2556,656
203.116.248.0203.117.8.2554,352
203.117.9.0203.117.22.2553,584
203.117.23.0203.117.24.255512
203.117.25.0203.117.31.2551,792
203.117.32.0203.117.39.2552,048
203.117.42.0203.117.49.2552,048
203.117.50.0203.117.52.255768
203.117.54.0203.117.73.2555,120
203.117.74.0203.117.97.2556,144
203.117.99.0203.117.108.2552,560
203.117.109.0203.117.126.2554,608
203.117.127.0203.117.231.25526,880

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 23.206.180.0, 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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