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AS1267
ASN-WINDTRE IUNET

AS1267 announces 7,396,352 IPv4 addresses across 48 routed ranges, registered in IT. Figures come from the public global routing table and are refreshed daily.

7.4M addressesIPv4 space announced
48Routed ranges
ITRegistry country

Is AS1267 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 48 announced ranges.

Range startRange endAddresses
2.156.0.02.157.191.255114,688
2.158.0.02.159.255.255131,072
5.77.64.05.77.95.2558,192
31.190.0.031.191.255.255131,072
37.100.0.037.103.255.255262,144
62.98.0.062.98.255.25565,536
81.81.0.081.81.255.25565,536
91.254.0.091.255.255.255131,072
94.160.0.094.167.255.255524,288
151.3.0.0151.5.87.255153,600
151.5.96.0151.11.47.255380,928
151.11.54.0151.13.131.255151,040
151.13.132.0151.58.175.2552,960,384
151.58.176.0151.59.167.25563,488
151.59.168.0151.79.255.2551,333,248
151.81.0.0151.84.255.255262,144
151.93.0.0151.93.255.25565,536
151.95.0.0151.95.255.25565,536
176.206.0.0176.207.255.255131,072
185.27.74.0185.27.74.255256
185.54.32.0185.54.35.2551,024
185.145.101.0185.145.101.255256
185.145.103.0185.145.103.255256
185.215.172.0185.215.175.2551,024
185.215.240.0185.215.243.2551,024
192.5.97.0192.5.97.255256
192.92.126.0192.92.126.255256
192.94.212.0192.94.212.255256
192.104.23.0192.104.23.255256
192.106.0.0192.106.63.25516,384
192.106.64.0192.106.191.25532,768
192.106.193.0192.106.195.255768
192.106.198.0192.106.233.2559,216
192.106.235.0192.106.255.2555,376
193.70.128.0193.70.145.2554,608
193.70.147.0193.70.225.25520,224
193.70.228.0193.70.255.2557,168
193.76.0.0193.76.255.25565,536
193.109.90.0193.109.90.255256
194.20.24.0194.20.24.255256
195.45.0.0195.45.255.25565,536
195.210.64.0195.210.95.2558,192
212.52.64.0212.52.127.25516,384
212.141.0.0212.141.255.25565,536
212.245.0.0212.245.227.25558,368
212.245.228.0212.245.255.2557,168
217.20.4.0217.20.15.2553,072
217.171.64.0217.171.79.2554,096

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 2.156.0.0, 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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