$ query “AS61591” --type=asn → 1 result(s)
AS61591 · WESTLINK-TECNOLOGIA-COMUNICACAO
WESTLINK TECNOLOGIA E COMUNICACAO LTDA. - ME
AS61591 is owned by WESTLINK TECNOLOGIA E COMUNICACAO LTDA. - ME and is a mid-size transit provider, registered in Brazil since 2018. The system announces 3 072 IPv4 addresses, and supports IPv6. The bulk of its IP address space is 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
- April 02, 2018
- Last Changed
- March 04, 2026
- Last Seen
- October 21, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 9 / 3
- IPv6 Prefixes (raw / aggregated)
- 19 / 1
- IPv4 Addresses
- 3 072
- Largest IPv4 Prefix
- /22 (1 024 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇧🇷 Brazil (3 072 IPs)
- Prefix Changed
- June 03, 2026
Reputation
- Reputation
- Good — 2 flagged IPs out of 3 072 total (0.07%)
Connectivity Summary
- Upstream Providers
- 3 upstreams providing transit
- Peers
- 27 networks exchanging traffic without transit
- Downstream Customers
- 8 downstreams buying transit
- Degree
- 38 unique BGP neighbors
- Reach
- 12 networks in customer cone
Upstream Providers (3)
Prefix Lists
IPv4 Prefixes (9 total)
- 45.237.72.0/22 (1 024 addresses (/22 prefix))
- 138.97.64.0/22 (1 024 addresses (/22 prefix))
- 170.247.40.0/22 (1 024 addresses (/22 prefix))
IPv6 Prefixes (19 total)
- 2804:231c::/32