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AS174
COGENT-174

AS174 announces 24,423,295 IPv4 addresses across 5,329 routed ranges, registered in US. Figures come from the public global routing table and are refreshed daily.

24.4M addressesIPv4 space announced
5,329Routed ranges
USRegistry country

Is AS174 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 5,329 ranges.

Range startRange endAddresses
2.58.4.02.58.7.2551,024
5.83.219.05.83.219.255256
5.157.72.05.157.79.2552,048
8.24.64.08.24.65.255512
8.24.72.08.24.73.255512
16.5.168.016.5.171.2551,024
23.26.130.023.26.130.255256
23.135.116.023.135.116.255256
23.135.124.023.135.124.255256
23.141.196.023.141.196.255256
23.141.212.023.141.212.255256
23.142.100.023.142.100.255256
23.146.76.023.146.76.255256
23.146.116.023.146.116.255256
23.148.44.023.148.44.255256
23.148.60.023.148.60.255256
23.148.68.023.148.68.255256
23.148.92.023.148.92.255256
23.148.116.023.148.116.255256
23.148.124.023.148.124.255256
23.148.164.023.148.164.255256
23.151.196.023.151.196.255256
23.161.96.023.161.96.255256
23.237.93.023.237.93.255256
37.34.88.037.34.95.2552,048
37.49.150.037.49.150.255256
38.0.0.038.1.255.255131,072
38.2.128.038.2.135.2552,048
38.2.137.038.2.138.255512
38.2.141.038.2.141.255256
38.2.143.038.2.143.255256
38.2.229.038.2.229.255256
38.3.0.038.3.15.2554,096
38.3.32.038.3.63.2558,192
38.3.82.038.3.82.255256
38.3.84.038.3.95.2553,072
38.3.128.038.3.129.255512
38.3.144.038.3.147.2551,024
38.3.161.038.3.161.255256
38.3.171.038.3.171.255256
38.3.180.038.3.183.2551,024
38.3.187.038.3.187.255256
38.3.191.038.3.191.255256
38.3.198.038.3.198.255256
38.3.200.038.3.207.2552,048
38.3.220.038.3.220.255256
38.3.223.038.3.223.255256
38.3.227.038.3.227.255256
38.4.0.038.4.47.25512,288
38.4.50.038.4.63.2553,584
38.4.96.038.5.16.25545,312
38.5.17.038.5.255.25561,184
38.7.64.038.7.79.2554,096
38.7.96.038.7.97.255512
38.7.99.038.7.99.255256
38.7.108.038.7.109.255512
38.7.119.038.7.127.2552,304
38.7.129.038.7.131.255768
38.7.160.038.7.191.2558,192
38.7.224.038.8.255.25573,728
38.9.33.038.9.35.255768
38.9.40.038.9.43.2551,024
38.9.51.038.9.53.255768
38.9.55.038.9.55.255256
38.9.121.038.9.121.255256
38.9.128.038.9.159.2558,192
38.9.178.038.9.183.2551,536
38.9.214.038.9.215.255512
38.10.0.038.10.0.255256
38.10.2.038.10.23.2555,632
38.10.25.038.10.31.2551,792
38.10.93.038.10.95.255768
38.10.117.038.10.117.255256
38.10.120.038.10.127.2552,048
38.10.150.038.10.151.255512
38.10.156.038.10.160.2551,280
38.10.174.038.10.175.255512
38.10.177.038.10.177.255256
38.10.182.038.10.183.255512
38.10.192.038.10.223.2558,192
38.10.244.038.10.245.255512
38.12.34.038.12.34.255256
38.12.249.038.12.249.255256
38.13.128.038.13.135.2552,048
38.13.140.038.13.223.25521,504
38.15.0.038.15.16.2554,352
38.15.22.038.15.22.255256
38.15.31.038.15.31.255256
38.15.160.038.15.167.2552,048
38.15.190.038.15.191.255512
38.16.0.038.16.255.25565,536
38.17.16.038.17.43.2557,168
38.17.48.038.17.55.2552,048
38.17.64.038.17.127.25516,384
38.18.0.038.18.31.2558,192
38.18.160.038.18.191.2558,192
38.18.236.038.18.239.2551,024
38.19.0.038.19.12.2553,328
38.19.13.038.19.13.255256
38.19.15.038.19.15.255256

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 2.58.4.0, 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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