$ query “AS271201” --type=asn → 1 result(s)
AS271201 · VIANET-TELECOMUNICACOES
Vianet Telecomunicacoes Ltda
AS271201 is run by Vianet Telecomunicacoes Ltda and is a mid-size transit provider, based in Brazil since 2020. The system announces 768 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to Australia, with additional presence in Brazil.
- Top 5% — Top 5% of all autonomous systems by reach and degree
Basic Information
- Country
- 🇧🇷 Brazil
- Category
- Internet Service Provider
- Network Role
- Mid-size Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- August 13, 2020
- Last Changed
- March 04, 2026
- Last Seen
- April 29, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 2 / 2
- IPv6 Prefixes (raw / aggregated)
- 7 / 1
- IPv4 Addresses
- 768
- Largest IPv4 Prefix
- /23 (512 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇦🇺 Australia (768 IPs), 🇧🇷 Brazil (80 IPs)
- Prefix Changed
- April 09, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 4 upstreams providing transit
- Peers
- 48 networks exchanging traffic without transit
- Downstream Customers
- 21 downstreams buying transit
- Unclassified
- 4 unclassified BGP neighbors
- Degree
- 77 unique BGP neighbors
- Reach
- 146 networks in customer cone
Upstream Providers (4)
Prefix Lists
IPv4 Prefixes (2 total)
- 179.49.186.0/23 (512 addresses (/23 prefix))
- 179.49.184.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (7 total)
- 2804:77d0::/32