# 191.19.171.52 — IP Intelligence Summary

191.19.171.52 is an IPv4 address operated by AS27699 - TELEFONICA BRASIL S.A, BR (AS27699), with approximate network location Itapevi, Brazil. Its reverse DNS name is 191-19-171-52.user.vivozap.com.br. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/191.19.171.52
- Last updated: 2026-11-13

## Ownership

- Organization: TELEFÔNICA BRASIL S.A
- Network name: 341057
- Allocated block: 191.19.128.0/18
- ASN: AS27699 (https://ipdebrief.com/asn/27699)
- Regional registry: LACNIC
- Registered holder: TELEFÔNICA BRASIL S.A
- Routing operator: AS27699 - TELEFONICA BRASIL S.A, BR
- Network registration country: BR
- Registrant address country: BR

## Location

- City: Itapevi
- Region: SP
- Country: Brazil
- Time zone: America/Sao_Paulo

Approximate network location; registration and certificate addresses are not server-location evidence.

## Network classification

- Infrastructure type: —
- Datacenter / hosting: no
- Residential: no
- Mobile: no
- Anycast: Unverified (not proof of unicast)
- Tor exit node: no
- VPN: no
- Proxy: no

## Risk assessment

- Assessment: Low Risk (0/100)
- Blocklist listings: 0
- Suspicious activity indicators: no
- Spam source: no

## Reverse DNS

- 191-19-171-52.user.vivozap.com.br
- Forward-confirmed: no

## DNS posture

Mail authentication and CAA are optional domain policies, not IP-wide requirements.

- caa: Not found at queried name (br)
- spf: Unknown / lookup inconclusive (191-19-171-52.user.vivozap.com.br)
- dmarc: Unknown / lookup inconclusive (_dmarc.191-19-171-52.user.vivozap.com.br)
- dnssec: Unknown / lookup inconclusive (52.171.19.191.in-addr.arpa)
- fcrDns: Unknown / lookup inconclusive (191-19-171-52.user.vivozap.com.br)

- TLS probe 443 at 191.19.171.52: Certificate not captured; current certificate unknown (unreachable)
- TLS probe 8443 at 191.19.171.52: Certificate not captured; current certificate unknown (unreachable)
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Source: IPDebrief, "191.19.171.52 IP intelligence", https://ipdebrief.com/191.19.171.52, updated 2026-11-13. Assessments are probabilistic.