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AS210218
OPENFIBER-ITALY

AS210218 announces 137,472 IPv4 addresses across 103 routed ranges, registered in IT. Figures come from the public global routing table and are refreshed daily.

137K addressesIPv4 space announced
103Routed ranges
ITRegistry country

Is AS210218 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 103 announced ranges.

Range startRange endAddresses
2.58.93.02.58.94.255512
2.58.136.02.58.139.2551,024
2.59.248.02.59.251.2551,024
31.13.194.031.13.194.255256
31.13.249.031.13.255.2551,792
37.139.129.037.139.129.255256
37.221.120.037.221.123.2551,024
45.8.74.045.8.75.255512
45.12.248.045.12.251.2551,024
45.66.229.045.66.229.255256
45.81.241.045.81.242.255512
45.139.100.045.139.103.2551,024
45.143.100.045.143.103.2551,024
45.144.152.045.144.153.255512
45.149.232.045.149.233.255512
45.151.88.045.151.88.255256
77.75.56.077.75.59.2551,024
78.40.160.078.40.167.2552,048
80.249.124.080.249.127.2551,024
82.115.208.082.115.208.255256
87.120.32.087.120.32.255256
87.120.34.087.120.35.255512
87.120.46.087.120.47.255512
87.120.63.087.120.66.2551,024
87.120.85.087.120.86.255512
87.120.96.087.120.97.255512
87.120.111.087.120.111.255256
87.120.177.087.120.177.255256
87.120.218.087.120.218.255256
87.120.220.087.120.221.255512
87.120.224.087.120.224.255256
87.120.226.087.120.226.255256
87.120.232.087.120.235.2551,024
87.121.19.087.121.19.255256
87.121.36.087.121.37.255512
87.121.56.087.121.57.255512
87.121.59.087.121.59.255256
87.121.66.087.121.68.255768
87.121.100.087.121.101.255512
87.121.116.087.121.116.255256
87.121.148.087.121.149.255512
91.92.3.091.92.3.255256
91.92.24.091.92.25.255512
91.197.196.091.197.199.2551,024
91.243.184.091.243.187.2551,024
92.249.51.092.249.51.255256
93.123.68.093.123.71.2551,024
93.123.86.093.123.87.255512
93.123.108.093.123.108.255256
94.33.0.094.33.163.25541,984
94.33.172.094.33.214.25511,008
94.103.126.094.103.126.255256
94.154.174.094.154.175.255512
94.156.16.094.156.19.2551,024
94.156.32.094.156.32.255256
94.156.48.094.156.55.2552,048
94.156.95.094.156.95.255256
94.156.108.094.156.111.2551,024
94.156.124.094.156.127.2551,024
94.156.168.094.156.169.255512
94.156.182.094.156.184.255768
94.156.187.094.156.187.255256
94.156.192.094.156.193.255512
94.156.234.094.156.235.255512
94.156.240.094.156.243.2551,024
94.156.246.094.156.247.255512
94.240.56.094.240.59.2551,024
95.214.124.095.214.127.2551,024
109.206.238.0109.206.238.255256
141.98.0.0141.98.0.255256
164.40.184.0164.40.184.255256
164.40.186.0164.40.187.255512
171.22.17.0171.22.17.255256
171.22.29.0171.22.29.255256
176.125.252.0176.125.253.255512
178.175.184.0178.175.191.2552,048
178.215.225.0178.215.226.255512
185.171.148.0185.171.151.2551,024
185.219.125.0185.219.126.255512
185.221.66.0185.221.66.255256
185.225.72.0185.225.72.255256
185.252.178.0185.252.178.255256
185.254.38.0185.254.39.255512
193.19.200.0193.19.203.2551,024
193.36.232.0193.36.235.2551,024
193.37.43.0193.37.43.255256
193.37.46.0193.37.46.255256
193.46.172.0193.46.175.2551,024
193.56.16.0193.56.19.2551,024
193.56.248.0193.56.251.2551,024
193.58.184.0193.58.187.2551,024
193.149.2.0193.149.3.255512
193.207.1.0193.207.23.2555,888
194.48.249.0194.48.249.255256
194.76.204.0194.76.207.2551,024
194.147.8.0194.147.11.2551,024
194.169.174.0194.169.174.255256
194.180.50.0194.180.50.255256
195.178.120.0195.178.120.255256
195.225.120.0195.225.123.2551,024

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 2.58.93.0, 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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