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AS3816
COLOMBIA TELECOMUNICACIONES S.A. ESP BIC

AS3816 announces 3,143,424 IPv4 addresses across 200 routed ranges, registered in CO. Figures come from the public global routing table and are refreshed daily.

3.1M addressesIPv4 space announced
200Routed ranges
CORegistry country

Is AS3816 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 200 announced ranges.

Range startRange endAddresses
45.71.180.045.71.180.255256
45.191.44.045.191.44.255256
152.200.0.0152.200.32.2558,448
152.200.128.0152.200.203.25519,456
152.200.205.0152.200.251.25512,032
152.201.32.0152.201.127.25524,576
152.201.160.0152.204.132.255189,696
152.204.134.0152.204.134.255256
152.204.136.0152.205.63.25547,104
152.205.192.0152.205.255.25516,384
161.10.0.0161.10.255.25565,536
161.18.0.0161.18.15.2554,096
161.18.32.0161.18.95.25516,384
161.18.104.0161.18.255.25538,912
167.0.0.0167.0.255.25565,536
168.228.111.0168.228.111.255256
179.32.0.0179.33.31.25573,728
179.33.48.0179.33.107.25515,360
179.33.110.0179.33.210.25525,856
179.33.211.0179.33.255.25511,520
181.32.0.0181.33.31.25573,728
181.33.128.0181.33.223.25524,576
181.174.8.0181.174.9.255512
181.174.12.0181.174.15.2551,024
181.174.18.0181.174.21.2551,024
181.174.24.0181.174.29.2551,536
181.174.35.0181.174.37.255768
181.174.48.0181.174.51.2551,024
181.192.128.0181.192.255.25532,768
181.234.0.0181.234.95.25524,576
181.234.128.0181.234.223.25524,576
181.235.0.0181.235.31.2558,192
181.235.64.0181.235.111.25512,288
181.235.128.0181.236.175.25577,824
181.236.184.0181.236.191.2552,048
181.236.200.0181.236.211.2553,072
181.236.214.0181.236.215.255512
181.236.217.0181.236.218.255512
181.236.221.0181.236.223.255768
181.236.232.0181.236.239.2552,048
181.237.0.0181.237.143.25536,864
181.237.160.0181.237.255.25524,576
186.98.0.0186.99.31.25573,728
186.99.96.0186.99.247.25538,912
186.99.252.0186.99.254.255768
186.102.0.0186.102.29.2557,680
186.102.30.0186.102.52.2555,888
186.102.53.0186.102.186.25534,304
186.102.187.0186.102.192.2551,536
186.103.0.0186.103.127.25532,768
186.112.0.0186.112.127.25532,768
186.112.129.0186.112.208.25520,480
186.112.209.0186.113.8.25514,336
186.113.10.0186.113.11.255512
186.113.14.0186.113.14.255256
186.113.16.0186.113.17.255512
186.113.18.0186.113.28.2552,816
186.113.29.0186.113.30.255512
186.113.32.0186.113.169.25535,328
186.113.172.0186.113.223.25513,312
186.113.232.0186.114.136.25541,216
186.114.137.0186.116.3.25597,024
186.116.4.0186.116.10.2551,792
186.116.11.0186.116.130.25530,720
186.116.131.0186.117.157.25572,448
186.117.158.0186.118.95.25549,664
186.118.96.0186.118.103.2552,048
186.118.104.0186.118.185.25520,992
186.118.188.0186.118.207.2555,120
186.118.208.0186.119.255.25577,824
186.121.0.0186.121.119.25530,720
186.168.0.0186.168.15.2554,096
186.168.32.0186.168.219.25548,128
186.168.224.0186.168.255.2558,192
186.169.3.0186.170.28.25572,192
186.170.30.0186.170.94.25516,640
186.170.96.0186.170.191.25524,576
186.170.208.0186.171.255.25577,824
186.183.132.0186.183.133.255512
186.183.168.0186.183.175.2552,048
186.183.200.0186.183.207.2552,048
186.183.232.0186.183.233.255512
186.183.240.0186.183.245.2551,536
186.183.254.0186.183.255.255512
190.13.0.0190.13.31.2558,192
190.13.48.0190.13.63.2554,096
190.13.97.0190.13.107.2552,816
190.13.109.0190.13.111.255768
190.52.0.0190.52.1.255512
190.52.2.0190.52.7.2551,536
190.52.8.0190.52.12.2551,280
190.52.13.0190.52.14.255512
190.52.15.0190.52.31.2554,352
190.65.0.0190.65.71.25518,432
190.65.72.0190.65.79.2552,048
190.65.80.0190.65.99.2555,120
190.65.100.0190.65.139.25510,240
190.65.140.0190.65.164.2556,400
190.65.165.0190.65.183.2554,864
190.65.184.0190.65.207.2556,144

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