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AS20804
ASN-TELENERGO ul. PERKUNA 47, WARSZAWA

AS20804 announces 155,392 IPv4 addresses across 114 routed ranges, registered in PL. Figures come from the public global routing table and are refreshed daily.

155K addressesIPv4 space announced
114Routed ranges
PLRegistry country

Is AS20804 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 114 announced ranges.

Range startRange endAddresses
81.15.128.081.15.130.255768
81.15.132.081.15.133.255512
81.15.135.081.15.137.255768
81.15.140.081.15.144.2551,280
81.15.146.081.15.149.2551,024
81.15.151.081.15.154.2551,024
81.15.158.081.15.161.2551,024
81.15.164.081.15.164.255256
81.15.168.081.15.175.2552,048
81.15.178.081.15.178.255256
81.15.180.081.15.186.2551,792
81.15.188.081.15.190.255768
81.15.192.081.15.195.2551,024
81.15.197.081.15.199.255768
81.15.202.081.15.202.255256
81.15.204.081.15.205.255512
81.15.209.081.15.209.255256
81.15.211.081.15.216.2551,536
81.15.219.081.15.219.255256
81.15.222.081.15.227.2551,536
81.15.230.081.15.230.255256
81.15.232.081.15.236.2551,280
81.15.238.081.15.238.255256
81.15.240.081.15.241.255512
81.15.244.081.15.245.255512
81.15.254.081.15.255.255512
82.177.0.082.177.7.2552,048
82.177.9.082.177.11.255768
82.177.14.082.177.16.255768
82.177.19.082.177.24.2551,536
82.177.27.082.177.27.255256
82.177.32.082.177.35.2551,024
82.177.37.082.177.37.255256
82.177.41.082.177.43.255768
82.177.46.082.177.47.255512
82.177.49.082.177.55.2551,792
82.177.57.082.177.57.255256
82.177.59.082.177.59.255256
82.177.64.082.177.67.2551,024
82.177.72.082.177.91.2555,120
82.177.94.082.177.94.255256
82.177.96.082.177.99.2551,024
82.177.108.082.177.109.255512
82.177.111.082.177.111.255256
82.177.114.082.177.127.2553,584
82.177.129.082.177.130.255512
82.177.132.082.177.133.255512
82.177.140.082.177.141.255512
82.177.144.082.177.162.2554,864
82.177.164.082.177.164.255256
82.177.166.082.177.183.2554,608
82.177.188.082.177.188.255256
82.177.191.082.177.194.2551,024
82.177.196.082.177.200.2551,280
82.177.205.082.177.208.2551,024
82.177.212.082.177.223.2553,072
82.177.242.082.177.245.2551,024
82.177.247.082.177.252.2551,536
82.177.254.082.177.255.255512
88.220.0.088.220.50.25513,056
88.220.52.088.220.54.255768
88.220.57.088.220.57.255256
88.220.59.088.220.61.255768
88.220.64.088.220.70.2551,792
88.220.73.088.220.81.2552,304
88.220.85.088.220.85.255256
88.220.89.088.220.89.255256
88.220.91.088.220.93.255768
88.220.95.088.220.95.255256
88.220.104.088.220.106.255768
88.220.113.088.220.114.255512
88.220.115.088.220.115.255256
88.220.117.088.220.129.2553,328
88.220.132.088.220.133.255512
88.220.139.088.220.143.2551,280
88.220.148.088.220.153.2551,536
88.220.155.088.220.160.2551,536
88.220.165.088.220.166.255512
88.220.170.088.220.181.2553,072
88.220.184.088.220.191.2552,048
88.220.208.088.220.247.25510,240
88.220.252.088.220.253.255512
88.220.254.088.220.255.255512
194.183.32.0194.183.43.2553,072
194.183.48.0194.183.53.2551,536
194.183.57.0194.183.59.255768
194.183.62.0194.183.63.255512
195.136.0.0195.136.1.255512
195.136.8.0195.136.11.2551,024
195.136.14.0195.136.15.255512
195.136.20.0195.136.26.2551,792
195.136.28.0195.136.31.2551,024
195.136.34.0195.136.36.255768
195.136.40.0195.136.51.2553,072
195.136.64.0195.136.64.255256
195.136.71.0195.136.71.255256
195.136.77.0195.136.77.255256
195.136.84.0195.136.91.2552,048
195.136.104.0195.136.107.2551,024
195.136.109.0195.136.113.2551,280

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 81.15.128.0, 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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