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AS16735
ALGAR TELECOM SA

AS16735 announces 538,880 IPv4 addresses across 47 routed ranges, registered in BR. Figures come from the public global routing table and are refreshed daily.

539K addressesIPv4 space announced
47Routed ranges
BRRegistry country

Is AS16735 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 47 announced ranges.

Range startRange endAddresses
177.69.0.0177.69.255.25565,536
177.126.96.0177.126.111.2554,096
179.108.96.0179.108.127.2558,192
187.32.0.0187.32.115.25529,696
187.32.117.0187.32.255.25535,584
187.44.96.0187.44.98.255768
187.44.99.0187.44.103.2551,280
187.44.104.0187.44.127.2556,144
187.72.0.0187.72.51.25513,312
187.72.52.0187.72.129.25519,968
187.72.132.0187.72.192.25515,616
187.72.193.0187.72.195.255768
187.72.198.0187.72.198.255256
187.72.200.0187.72.236.2559,472
187.72.237.0187.72.255.2554,864
189.37.0.0189.37.127.25532,768
189.38.96.0189.38.111.2554,096
189.39.0.0189.39.63.25516,384
189.39.125.0189.39.125.255256
189.112.0.0189.112.2.255768
189.112.4.0189.112.253.25564,000
189.112.254.0189.112.255.255512
200.146.192.0200.146.255.25516,384
200.160.112.0200.160.127.2554,096
200.170.128.0200.170.168.25510,496
200.170.171.0200.170.171.255256
200.170.173.0200.170.173.255256
200.170.176.0200.170.191.2554,096
200.187.160.0200.187.191.2558,192
200.225.192.0200.225.255.25516,384
200.233.128.0200.233.197.25517,920
200.233.198.0200.233.220.2555,888
200.233.222.0200.233.222.255256
200.233.224.0200.233.255.2558,192
201.16.128.0201.16.156.2557,424
201.16.158.0201.16.161.2551,024
201.16.162.0201.16.255.25524,064
201.48.0.0201.48.122.25531,488
201.48.124.0201.48.138.2553,840
201.48.142.0201.48.199.25514,848
201.48.200.0201.48.227.2557,168
201.48.229.0201.48.236.2552,048
201.48.239.0201.48.246.2552,048
201.48.248.0201.48.248.255256
201.48.250.0201.48.255.2551,536
201.49.96.0201.49.127.2558,192
201.55.96.0201.55.127.2558,192

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 177.69.0.0, 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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