AS10429 — TELEFONICA BRASIL S.A

Network type: residential

AS10429 announces 81 IPv4 prefixes covering 1,659,904 addresses and 28 IPv6 prefixes.

About this network

The Autonomous System of Telefônica Brasil S.A., the Brazilian arm of Telefónica trading as Vivo — the country's largest telecom operator, formed from the old Telesp fixed-line incumbent in São Paulo.

What it's used for

• Fixed broadband access for Brazilian subscribers: fiber and legacy DSL lines into homes and businesses, plus the corporate connectivity Telefônica sells under its data-services brand.

Notable

• Eyeball access network at incumbent scale. RIS sees 91 IPv4 prefixes carrying roughly 1,664,512 addresses, alongside 69 IPv6 prefixes — that is consumer-broadband volume, not enterprise or hosting volume.
• Reverse DNS settles the role. Sampled addresses across the big /15s resolve to …customer.tdatabrasil.net.br, and elsewhere to …user.vivozap.com.br and …dsl.telesp.net.br. Sequential, dashed-IP PTRs generated across entire blocks are exactly how an access provider labels subscriber pools; the three domains are the fossil record of the same company under three names (Telesp, Telefônica Data, Vivo).
• The 344 observed BGP neighbours are not a contradiction. A national incumbent peers widely because it has an enormous audience others want to reach — the neighbour count reflects the value of the eyeballs, not a wholesale transit business. What settles the kind is that the addresses themselves are full of end-user PTRs.

Interesting

• Note the split personality of the naming: dsl.telesp.net.br is the copper-era incumbent, vivozap.com.br the mobile-first consumer brand. A single AS can carry decades of merger history in its reverse DNS.

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

Announced prefixes

• 152.252.0.0/17
• 152.255.15.0/24
• 152.255.18.0/24
• 168.227.192.0/22
• 177.24.192.0/21
• 177.25.0.0/18
• 177.147.192.0/18
• 177.160.64.0/18
• 179.144.224.0/19
• 179.151.192.0/20
• 186.200.0.0/19
• 186.200.32.0/23
• 186.200.34.0/24
• 186.200.36.0/22
• 186.200.40.0/21
• 186.200.48.0/20
• 186.200.64.0/18
• 186.200.128.0/17
• 186.201.0.0/16
• 186.238.0.0/15
• 187.8.0.0/15
• 187.50.0.0/15
• 187.92.0.0/15
• 187.113.160.0/20
• 187.114.144.0/21
• 189.20.0.0/16
• 189.44.0.0/16
• 189.56.0.0/15
• 189.108.0.0/15
• 191.29.0.0/17
• 191.30.208.0/20
• 191.31.32.0/20
• 191.35.192.0/20
• 200.99.133.0/24
• 200.99.138.0/24
• 200.99.147.0/24
• 200.99.149.0/24
• 200.99.229.0/24
• 200.148.128.0/17
• 200.153.0.0/17
• 200.159.0.0/17
• 200.162.5.0/24
• 200.162.22.0/24
• 200.162.36.0/24
• 200.162.40.0/24
• 200.162.44.0/24
• 200.162.48.0/24
• 200.162.52.0/24
• 200.162.54.0/24
• 200.168.160.0/19
• 200.168.192.0/19
• 200.168.224.0/20
• 200.168.240.0/22
• 200.168.244.0/24
• 200.168.246.0/24
• 200.168.248.0/21
• 200.171.192.0/19
• 200.198.75.0/24
• 200.198.114.0/24
• 200.202.116.0/24
• 200.205.0.0/17
• 200.205.128.0/20
• 200.205.144.0/24
• 200.205.147.0/24
• 200.205.148.0/22
• 200.205.152.0/21
• 200.205.160.0/19
• 200.205.192.0/19
• 200.205.224.0/20
• 200.205.240.0/21
• 200.205.249.0/24
• 200.205.250.0/23
• 200.205.252.0/22
• 200.206.0.0/17
• 200.232.0.0/17
• 201.0.244.0/23
• 201.0.246.0/24
• 201.26.238.0/24
• 201.28.0.0/16
• 201.63.0.0/16
• 201.91.0.0/16
• 2001:12e0:200::/40
• 2001:12e0:800::/37
• 2001:12e0:2000::/36
• 2001:12e0:8000::/36
• 2001:12e0:b000::/36
• 2001:12e0:c000::/36
• 2001:12e0:f000::/36
• 2804:18:20::/44
• 2804:18:40::/44
• 2804:18:70::/44
• 2804:18:80::/44
• 2804:18:820::/44
• 2804:18:840::/44
• 2804:18:860::/44
• 2804:18:8f0::/44
• 2804:18:940::/44
• 2804:18:960::/44
• 2804:18:1010::/44
• 2804:18:1050::/44

and 9 more.

Upstream networks

• AS12956 TELEFONICA GLOBAL SOLUTIONS SL

Downstream networks

• AS18881 TELEFONICA BRASIL S.A
• AS26599 TELEFONICA BRASIL S.A
• AS27699 TELEFONICA BRASIL S.A
• AS11419 TELEFONICA BRASIL S.A
• AS19182 TELEFONICA BRASIL S.A
• AS263347 CEDNET PROVEDOR INTERNET
• AS270521 IVAN LUCAS DEFANT - ME
• AS268018 DB3 SERVICOS DE TELECOMUNICACOES S.A
• AS272710 FIBRASIL INFRAESTRUTURA E FIBRA OTICA S.A.
• AS52573 Une Telecom Ltda
• AS28177 NETWORKBRASIL Ltda.
• AS271303 Brayo LTDA
• AS266533 ICNT PROVEDOR DE INTERNET LTDA
• AS16685 TIVIT TERCEIRIZACAO DE PROCESSOS, SERV. E TEC. S/A
• AS28597 SERASA S.A
• AS53070 T-Systems do Brasil Ltda.
• AS265152 WIP TELECOM MULTIMIDIA EIRELI - ME
• AS53134 BRXNQT Telecomunicacoes Ltda
• AS28588 LEVEL UP! INTERACTIVE LTDA
• AS52688 FATIMA VIDEO ELETRONICA LTDA ME
• AS272264 TELEFONICA BRASIL S.A
• AS262694 Link Centro de Informatica Ltda.
• AS400696 MIBURA, INC.
• AS267451 FUTURE DIGITAL
• AS27715 Locaweb Servicos de Internet S/A

Adjacent networks

• AS12956 TELEFONICA GLOBAL SOLUTIONS SL
• AS18881 TELEFONICA BRASIL S.A
• AS26599 TELEFONICA BRASIL S.A
• AS27699 TELEFONICA BRASIL S.A
• AS52573 Une Telecom Ltda
• AS272264 TELEFONICA BRASIL S.A
• AS266167 CELERIX TECNOLOGIA DE TELECOMUNICACOES LTDA
• AS11419 TELEFONICA BRASIL S.A
• AS61678 NETWAY INFORMATICA LTDA
• AS263347 CEDNET PROVEDOR INTERNET
• AS19182 TELEFONICA BRASIL S.A
• AS271303 Brayo LTDA
• AS264275 ROLIM NET TECNOLOGIA LTDA
• AS16685 TIVIT TERCEIRIZACAO DE PROCESSOS, SERV. E TEC. S/A
• AS270521 IVAN LUCAS DEFANT - ME
• AS268018 DB3 SERVICOS DE TELECOMUNICACOES S.A
• AS272710 FIBRASIL INFRAESTRUTURA E FIBRA OTICA S.A.
• AS266143 UP LINK INTERNET BANDA LARGA
• AS28177 NETWORKBRASIL Ltda.
• AS268171 Meganet Tecnologia LTDA
• AS266533 ICNT PROVEDOR DE INTERNET LTDA
• AS61745 NBS TELECOM
• AS52688 FATIMA VIDEO ELETRONICA LTDA ME
• AS28597 SERASA S.A
• AS53070 T-Systems do Brasil Ltda.