Autonomous system
AS18881 AS18881 - TELEFONICA BRASIL S.A
Unclassified RIPE
Summary
Vivo
residential telecom isp brazil
TELEFONICA BRASIL S.A is held by Telefônica Brasil S.A, operating under the brand Vivo.
What it's used for
- The address space carries residential broadband access, evidenced by reverse DNS entries such as
177.97.64.dynamic.adsl.gvt.net.brand177.134.64.0.static.gvt.net.br. - The AS announces 4,581,376 IPv4 addresses across 526 prefixes and 91 IPv6 prefixes, while maintaining only 2 observed neighbours, a ratio indicative of a large-scale access network rather than a transit provider.
Notable
- All sampled registrants are listed as
TELEFÔNICA BRASIL S.A, which aligns perfectly with the AS handle and the operator's identity. - The operator was originally formed as part of Telebrás and underwent rebranding from Telecomunicações de São Paulo S.A. (TELESP) to Telefônica Brasil S.A. in October 2011.
- The inventory consists of numerous /16 and /17 blocks, primarily in the 177.0.0.0/8 range, reflecting a finely subdivided corporate estate for site-by-site segmentation.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| IX.br (PTT.br) Campinas | Campinas, Brazil | 200.192.108.39 |
Transit providers
1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS10429 | TELEFONICA BRASIL S.A | 58,495 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-04, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 532 prefixes · 4.60M addresses IPv6 95 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 627 |
Registry
Allocation record
- Registry
- RIPE
- Handle
18881- Registry name
- ASN18881
- Registrant
- TELEFÔNICA BRASIL S.A
- Abuse contact
- CSIRT TELEFONICA BR
- Registered
- 2000-10-23
- Last changed
- 2019-07-30
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- TELEFÔNICA BRASIL AS18881
- Also known as
- Vivo
- Scope
- South America
- 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.
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1,050 with no ROA
- ROAs
- 0 authorising AS18881
- ASPA
- no ASPA record
- IRR
- 99.7% registered · 1,047 of 1,050 announcements 1 other origin
- Route objects
- 39 naming AS18881
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 453 networks and 1,853 prefixes, as published 2026-11-05. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere