AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC

AS3816 - COLOMBIA TELECOMUNICACIONES S.A. ESP BIC · registered in Colombia

IPv4 addresses3,121,408583 prefixes · 0.100% of announced IPv4

Rank in Colombia#3largest network in CO by IPv4 space, of 356 · 18.88% of CO

Rank worldwide#146of 79,396 networks with IPv4

IPv61 x /32 (70,696 x /48)28 prefixes

CountryColombia430 ASNs registered there

Open AS3816 in ASN lookup Look up an IP in this network (38.156.225.1) All networks in Colombia

IPv4 prefixes

First 500 of 583 prefixes, in address order.

38.156.225.0/24
45.71.180.0/24
45.191.44.0/24
152.200.0.0/19
152.200.32.0/24
152.200.128.0/18
152.200.192.0/21
152.200.200.0/22
152.200.205.0/24
152.200.206.0/23
152.200.208.0/20
152.200.224.0/20
152.200.240.0/21
152.200.248.0/22
152.201.32.0/19
152.201.64.0/18
152.201.160.0/19
152.201.192.0/18
152.202.0.0/15
152.204.0.0/17
152.204.128.0/22
152.204.132.0/24
152.204.134.0/24
152.204.136.0/21
152.204.144.0/20
152.204.160.0/19
152.204.192.0/18
152.205.0.0/18
152.205.64.0/20
152.205.192.0/18
161.10.0.0/16
161.18.0.0/20
161.18.32.0/19
161.18.64.0/19
161.18.104.0/21
161.18.112.0/20
161.18.128.0/17
167.0.0.0/16
168.228.111.0/24
179.32.0.0/16
179.33.0.0/19
179.33.48.0/20
179.33.64.0/19
179.33.104.0/22
179.33.110.0/23
179.33.112.0/20
179.33.128.0/19
179.33.160.0/21
179.33.168.0/22
179.33.176.0/20
179.33.192.0/20
179.33.208.0/23
179.33.210.0/24
179.33.211.0/24
179.33.212.0/22
179.33.216.0/21
179.33.224.0/19
181.32.0.0/16
181.33.0.0/19
181.33.128.0/18
181.33.192.0/19
181.174.8.0/23
181.174.12.0/22
181.174.18.0/23
181.174.20.0/23
181.174.24.0/22
181.174.28.0/23
181.174.35.0/24
181.174.36.0/23
181.174.48.0/22
181.192.128.0/17
181.234.0.0/18
181.234.64.0/19
181.234.128.0/18
181.234.192.0/19
181.235.0.0/19
181.235.64.0/19
181.235.96.0/20
181.235.128.0/17
181.236.0.0/17
181.236.128.0/19
181.236.160.0/20
181.236.184.0/21
181.236.200.0/21
181.236.208.0/22
181.236.214.0/23
181.236.217.0/24
181.236.218.0/24
181.236.221.0/24
181.236.223.0/24
181.236.232.0/21
181.237.0.0/18
181.237.64.0/19
181.237.128.0/20
181.237.160.0/19
181.237.192.0/18
186.98.0.0/16
186.99.0.0/19
186.99.96.0/19
186.99.128.0/18
186.99.192.0/19
186.99.224.0/20
186.99.240.0/21
186.102.0.0/20
186.102.16.0/21
186.102.24.0/22
186.102.28.0/23
186.102.30.0/23
186.102.32.0/20
186.102.48.0/22
186.102.52.0/24
186.102.53.0/24
186.102.54.0/23
186.102.56.0/21
186.102.64.0/18
186.102.128.0/19
186.102.160.0/20
186.102.176.0/21
186.102.184.0/23
186.102.186.0/24
186.102.187.0/24
186.102.188.0/22
186.102.192.0/24
186.103.0.0/17
186.112.0.0/21
186.112.8.0/22
186.112.12.0/22
186.112.16.0/20
186.112.32.0/19
186.112.64.0/18
186.112.129.0/24
186.112.130.0/23
186.112.132.0/22
186.112.136.0/21
186.112.144.0/20
186.112.160.0/19
186.112.192.0/20
186.112.208.0/24
186.112.209.0/24
186.112.210.0/23
186.112.212.0/22
186.112.224.0/19
186.113.0.0/21
186.113.8.0/24
186.113.10.0/23
186.113.14.0/24
186.113.16.0/23
186.113.18.0/23
186.113.20.0/22
186.113.24.0/22
186.113.28.0/24
186.113.29.0/24
186.113.30.0/24
186.113.32.0/19
186.113.64.0/18
186.113.128.0/19
186.113.160.0/21
186.113.172.0/22
186.113.176.0/20
186.113.192.0/19
186.113.232.0/21
186.113.240.0/20
186.114.0.0/17
186.114.128.0/21
186.114.136.0/24
186.114.137.0/24
186.114.138.0/23
186.114.140.0/22
186.114.144.0/20
186.114.160.0/19
186.114.192.0/18
186.115.0.0/19
186.115.32.0/20
186.115.64.0/18
186.115.128.0/21
186.115.143.0/24
186.115.144.0/20
186.115.160.0/19
186.115.192.0/18
186.116.0.0/22
186.116.4.0/22
186.116.8.0/23
186.116.10.0/24
186.116.11.0/24
186.116.12.0/22
186.116.16.0/20
186.116.32.0/19
186.116.64.0/19
186.116.96.0/21
186.116.104.0/22
186.116.108.0/23
186.116.110.0/23
186.116.112.0/20
186.116.128.0/23
186.116.130.0/24
186.116.131.0/24
186.116.132.0/22
186.116.136.0/21
186.116.144.0/20
186.116.160.0/19
186.116.192.0/18
186.117.0.0/17
186.117.128.0/20
186.117.144.0/21
186.117.152.0/22
186.117.156.0/23
186.117.158.0/23
186.117.160.0/19
186.117.192.0/18
186.118.0.0/18
186.118.64.0/19
186.118.96.0/21
186.118.104.0/21
186.118.112.0/20
186.118.128.0/19
186.118.160.0/20
186.118.176.0/21
186.118.184.0/23
186.118.188.0/22
186.118.192.0/20
186.118.208.0/20
186.118.224.0/19
186.119.0.0/16
186.121.0.0/18
186.121.64.0/19
186.121.96.0/20
186.121.112.0/21
186.168.0.0/20
186.168.32.0/19
186.168.64.0/20
186.168.80.0/21
186.168.96.0/19
186.168.128.0/18
186.168.192.0/20
186.168.208.0/21
186.168.216.0/22
186.168.228.0/22
186.168.232.0/21
186.168.240.0/20
186.169.4.0/22
186.169.8.0/21
186.169.16.0/20
186.169.32.0/19
186.169.64.0/18
186.169.128.0/17
186.170.0.0/20
186.170.16.0/21
186.170.24.0/22
186.170.28.0/24
186.170.30.0/23
186.170.32.0/19
186.170.64.0/20
186.170.80.0/21
186.170.96.0/19
186.170.128.0/18
186.170.208.0/20
186.170.224.0/19
186.171.0.0/16
186.183.132.0/23
186.183.168.0/21
186.183.200.0/21
186.183.232.0/23
186.183.240.0/22
186.183.244.0/23
186.183.254.0/23
190.13.0.0/19
190.13.48.0/20
190.13.97.0/24
190.13.98.0/23
190.13.100.0/22
190.13.104.0/22
190.13.109.0/24
190.13.110.0/23
190.52.0.0/23
190.52.2.0/23
190.52.4.0/22
190.52.8.0/22
190.52.12.0/24
190.52.13.0/24
190.52.14.0/24
190.52.15.0/24
190.52.16.0/20
190.65.0.0/18
190.65.64.0/21
190.65.72.0/21
190.65.80.0/20
190.65.96.0/22
190.65.100.0/22
190.65.104.0/21
190.65.112.0/20
190.65.128.0/21
190.65.136.0/22
190.65.140.0/22
190.65.144.0/20
190.65.160.0/22
190.65.164.0/24
190.65.165.0/24
190.65.166.0/23
190.65.168.0/21
190.65.176.0/21
190.65.184.0/21
190.65.192.0/20
190.65.208.0/21
190.65.216.0/22
190.65.220.0/23
190.65.222.0/24
190.65.223.0/24
190.65.224.0/23
190.65.226.0/23
190.65.228.0/22
190.65.232.0/23
190.65.234.0/23
190.65.236.0/22
190.65.240.0/20
190.66.0.0/22
190.66.5.0/24
190.66.6.0/23
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190.66.11.0/24
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190.66.15.0/24
190.66.16.0/22
190.66.20.0/23
190.66.22.0/23
190.66.24.0/23
190.66.26.0/23
190.66.28.0/22
190.66.32.0/19
190.66.64.0/18
190.66.128.0/19
190.66.160.0/20
190.66.176.0/22
190.66.184.0/21
190.66.192.0/18
190.67.0.0/19
190.67.32.0/22
190.67.36.0/23
190.67.38.0/24
190.67.39.0/24
190.67.40.0/22
190.67.44.0/22
190.67.48.0/20
190.67.64.0/18
190.67.128.0/17
190.68.0.0/17
190.68.128.0/20
190.68.144.0/21
190.68.152.0/21
190.68.160.0/23
190.68.162.0/23
190.68.164.0/22
190.68.168.0/21
190.68.176.0/21
190.68.184.0/21
190.68.192.0/19
190.68.224.0/20
190.68.240.0/22
190.68.244.0/23
190.68.246.0/24
190.68.247.0/24
190.68.248.0/22
190.68.252.0/23
190.68.255.0/24
190.69.0.0/23
190.69.2.0/24
190.69.3.0/24
190.69.4.0/22
190.69.8.0/21
190.69.16.0/20
190.69.32.0/19
190.69.64.0/19
190.69.96.0/20
190.69.112.0/20
190.69.128.0/24
190.69.129.0/24
190.69.130.0/23
190.69.132.0/22
190.69.136.0/23
190.69.138.0/23
190.69.140.0/22
190.69.144.0/21
190.69.152.0/24
190.69.153.0/24
190.69.154.0/23
190.69.156.0/23
190.69.158.0/24
190.69.159.0/24
190.69.160.0/20
190.69.176.0/20
190.69.192.0/21
190.69.200.0/24
190.69.201.0/24
190.69.202.0/23
190.69.204.0/22
190.69.208.0/20
190.69.224.0/19
190.96.128.0/19
190.96.200.0/21
190.96.224.0/19
190.252.0.0/20
190.252.16.0/21
190.252.24.0/22
190.252.28.0/24
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190.252.30.0/23
190.252.32.0/19
190.252.64.0/21
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190.252.80.0/20
190.252.96.0/21
190.252.105.0/24
190.252.106.0/23
190.252.108.0/22
190.252.112.0/20
190.252.128.0/18
190.252.192.0/20
190.252.208.0/21
190.252.216.0/21
190.252.224.0/19
190.253.0.0/16
190.254.0.0/18
190.254.64.0/19
190.254.96.0/20
190.254.112.0/21
190.254.120.0/24
190.254.121.0/24
190.254.122.0/23
190.254.124.0/22
190.254.128.0/17
190.255.0.0/19
190.255.32.0/23
190.255.34.0/24
190.255.35.0/24
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190.255.37.0/24
190.255.38.0/23
190.255.40.0/22
190.255.45.0/24
190.255.46.0/23
190.255.48.0/23
190.255.50.0/23
190.255.52.0/22
190.255.56.0/24
190.255.57.0/24
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190.255.59.0/24
190.255.60.0/22
190.255.64.0/22
190.255.68.0/22
190.255.72.0/21
190.255.80.0/20
190.255.96.0/19
190.255.128.0/18
190.255.192.0/19
190.255.224.0/19
191.104.0.0/16
191.106.0.0/20
191.106.128.0/17
191.107.0.0/17
191.107.128.0/20
191.107.160.0/19
191.107.192.0/18
191.108.0.0/16
191.109.64.0/18
191.109.160.0/19
191.109.192.0/20
191.110.0.0/16
191.111.0.0/18
191.111.64.0/19
191.111.192.0/18
192.135.95.0/24
198.68.240.0/21
200.2.65.0/24
200.3.162.0/24
200.3.164.0/22
200.21.0.0/23
200.21.2.0/24
200.21.3.0/24
200.21.4.0/24
200.21.5.0/24
200.21.6.0/23
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200.21.10.0/23
200.21.12.0/22
200.21.16.0/23
200.21.18.0/24
200.21.19.0/24
200.21.20.0/24
200.21.21.0/24
200.21.22.0/23
200.21.24.0/21
200.21.32.0/23
200.21.34.0/23
200.21.36.0/22
200.21.40.0/22
200.21.44.0/23
200.21.46.0/23
200.21.48.0/23

IPv6 prefixes

All 28 prefixes.

2800:680::/44
2800:680:10::/48
2800:680:12::/47
2800:680:14::/46
2800:680:18::/45
2800:680:20::/43
2800:680:40::/42
2800:680:80::/41
2800:680:100::/40
2800:680:200::/39
2800:680:400::/38
2800:680:800::/37
2800:680:1000::/36
2800:680:2000::/35
2800:680:4000::/34
2800:680:8000::/33
2800:8b0::/38
2801:10:f000::/48
2801:16:800::/48
2801:1e:800::/48
2801:11e:1::/48
2801:130::/36
2801:1b1:1::/48
2801:1c6::/44
2801:1ca::/44
2801:1d9::/47
2801:1f9:9::/48
2803:3250:eaa9::/48

Other ASNs named COLOMBIA TELECOMUNICACIONES S.A. ESP BIC

1 other network uses the same organisation name; together with AS3816 they announce 3,121,920 IPv4 addresses.

ASNNameIPv4 addresses

AS27921AS27921 - COLOMBIA TELECOMUNICACIONES S.A. ESP BIC CO512

Similar-sized networks in Colombia

ASNNameIPv4 addresses

AS26611#1 AS26611 - COMUNICACION CELULAR S.A. COMCEL S.A.4,461,056

AS13489#2 AS13489 - UNE EPM TELECOMUNICACIONES S.A.4,236,288

AS10620#4 AS10620 - Telmex Colombia S.A.1,809,664

AS19429#5 AS19429 - ETB - Colombia871,936

AS14080#6 AS14080 - Telmex Colombia S.A.678,912

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources