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AS6855
SK-TELEKOM Slovak Telekom T-Mobile CZ

AS6855 announces 662,784 IPv4 addresses across 32 routed ranges, registered in SK. Figures come from the public global routing table and are refreshed daily.

663K addressesIPv4 space announced
32Routed ranges
SKRegistry country

Is AS6855 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 32 announced ranges.

Range startRange endAddresses
78.98.0.078.99.255.255131,072
84.47.0.084.47.127.25532,768
85.239.68.085.239.69.255512
85.239.80.085.239.87.2552,048
85.248.31.085.248.31.255256
85.248.74.085.248.74.255256
87.197.0.087.197.255.25565,536
91.127.0.091.127.255.25565,536
91.195.106.091.195.107.255512
91.245.16.091.245.17.255512
95.102.0.095.103.255.255131,072
178.40.0.0178.41.255.255131,072
185.58.102.0185.58.103.255512
193.84.7.0193.84.7.255256
193.84.96.0193.84.99.2551,024
193.84.245.0193.84.245.255256
193.200.143.0193.200.143.255256
193.201.110.0193.201.110.255256
193.228.234.0193.228.234.255256
194.48.241.0194.48.241.255256
194.50.215.0194.50.215.255256
194.154.224.0194.154.255.2558,192
194.169.224.0194.169.224.255256
195.91.0.0195.91.127.25532,768
195.146.128.0195.146.130.255768
195.146.131.0195.146.134.2551,024
195.146.136.0195.146.143.2552,048
195.146.145.0195.146.159.2553,840
195.216.240.0195.216.240.255256
212.5.192.0212.5.223.2558,192
213.81.128.0213.81.255.25532,768
213.160.160.0213.160.191.2558,192

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 78.98.0.0, 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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