asn.dev

Autonomous system

AS10429 TELEFONICA BRASIL S.A

Residential

IPv4 addresses 1.66M 94 prefixes
IPv6 prefixes 56 counted as prefixes, not addresses
Countries 1 mostly BR
Flagged prefixes 0 none

Summary

Telefonica Brasil (Vivo)

Brazil · AI-generated

residential isp broadband eyeball

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. Source, and how to suggest an edit.

Address space

Summary

Full explorer
CountryNamePrefixes
BRBrazil150

Declared

PeeringDB profile

self-reported
Name
TELEFÔNICA BRASIL AS10429
Also known as
Vivo
Scope
Not Disclosed
Traffic ratio
Not Disclosed
Peering policy
Open
IRR as-set
AS-TBSA
Website
http://www.telefonica.com.br

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Reputation

Classification and threat

Residential Fixed-line consumer ISP. Addresses here are homes.

No IC3 indicators Nothing from the FBI IC3 feed.

Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check