AS3816 — AS3816 - COLOMBIA TELECOMUNICACIONES S.A. ESP BIC

Network type: residential

AS3816 announces 273 IPv4 prefixes covering 3,121,408 addresses and 27 IPv6 prefixes.

About this network

Colombia Telecomunicaciones S.A. ESP ("Coltel") is one of Colombia's largest telecom operators, long known to consumers by the Movistar brand. As of early 2026 the company is owned by Millicom, the parent of Tigo, after Millicom bought out both Telefónica's controlling stake and the Colombian government's minority stake.

What it's used for

• Fixed broadband and internet access for Colombian households and businesses.
• Backbone and transit for the operator's own mobile and fixed services.

Notable

• Announces roughly 3.1 million IPv4 addresses, making it one of the largest eyeball networks in this ASN range and a major destination for content delivered into Colombia.
• Coltel descends from Colombia's state telephone company, which is why the government held a stake in it until the Millicom buyout.

Interesting

• The Tigo and Movistar merger puts roughly 41 million mobile lines under one owner, close to market leader Claro, so the branding and network attribution around this AS may keep shifting as the two operations integrate.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 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
• 179.33.192.0/18
• 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
• 186.102.0.0/17
• 186.102.128.0/18
• 186.102.192.0/24

and 200 more.

Upstream networks

• AS12956 TELEFONICA GLOBAL SOLUTIONS SL

Downstream networks

• AS22368 TELEBUCARAMANGA S.A. E.S.P.
• AS8163 Metrotel SA ESP
• AS13489 UNE EPM TELECOMUNICACIONES S.A.
• AS27845 Empresa de Recursos Tecnologicos S.A E.S.P
• AS272881 GLOBAL NET TV ZOMAC S.A.S
• AS27817 Red Nacional Academica de Tecnologia Avanzada - RENATA
• AS270062 FIBERNET TV SAS
• AS27763 ANDITEL S.A.S.
• AS267799 TV ISLA LTDA
• AS273020 IN QUALITY TELECOMUNICATIONS S.A.S. ZOMAC BIC
• AS267790 NET ISP S.A.S
• AS271825 BANCO AGRARIO DE COLOMBIA S.A.
• AS265688 SINERGY SOLUCIONES INTEGRALES
• AS263804 FUNDACION SOCIAL
• AS27921 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC
• AS275008 CRG65
• AS267691 ENTER TELECOMUNICACIONES BANDA ANCHA SAS
• AS269845 DEPARTAMENTO DE CALDAS
• AS263719 POLICIA NACIONAL DE COLOMBIA
• AS273064 CIRCULO DE SUBOFICIALES DE LAS FUERZAS MILITARES
• AS273168 INFRAESTRUCTURA Y REDES SAS
• AS272024 EVERNET SAS
• AS267857 INTEGRA MULTISOLUTIONS S.A.S.
• AS272988 Hydra Soluciones Empresariales Ingenieria SAS
• AS52256 Coop. de Ahorro y Credito de Santander Ltda. Financ. Comultrasan

Adjacent networks

• AS12956 TELEFONICA GLOBAL SOLUTIONS SL
• AS22368 TELEBUCARAMANGA S.A. E.S.P.
• AS8163 Metrotel SA ESP
• AS13489 UNE EPM TELECOMUNICACIONES S.A.
• AS27845 Empresa de Recursos Tecnologicos S.A E.S.P
• AS272881 GLOBAL NET TV ZOMAC S.A.S
• AS27817 Red Nacional Academica de Tecnologia Avanzada - RENATA
• AS270062 FIBERNET TV SAS
• AS27763 ANDITEL S.A.S.
• AS273020 IN QUALITY TELECOMUNICATIONS S.A.S. ZOMAC BIC
• AS267799 TV ISLA LTDA
• AS267790 NET ISP S.A.S
• AS265688 SINERGY SOLUCIONES INTEGRALES
• AS271825 BANCO AGRARIO DE COLOMBIA S.A.
• AS263804 FUNDACION SOCIAL
• AS27921 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC
• AS275008 CRG65
• AS267691 ENTER TELECOMUNICACIONES BANDA ANCHA SAS
• AS262186 TV AZTECA SUCURSAL COLOMBIA
• AS263719 POLICIA NACIONAL DE COLOMBIA
• AS273168 INFRAESTRUCTURA Y REDES SAS
• AS273064 CIRCULO DE SUBOFICIALES DE LAS FUERZAS MILITARES
• AS269845 DEPARTAMENTO DE CALDAS
• AS272024 EVERNET SAS
• AS267857 INTEGRA MULTISOLUTIONS S.A.S.

Routing security

• RPKI: 1,329 valid, 0 invalid and 25 not-found announcements; 229 ROAs.
• ASPA: none published.
• IRR: 9% of announcements registered; 222 route objects.
• Listed in as-sets: AS-CTBC-CUSTOMERS109, AS-NWN-TRANSIT, AS-PROLE, AS-TDATANETSA, AS-TRANSROUTE-SPEC, AS204464:AS-BLACKLIST, AS20965:AS-FROM-REDCLARA-TO-GEANT, AS265688:AS-TRANSIT, AS27817:AS-TELEFONICA3816, AS3816:AS-TEFCOLOMBIA.