$ query “AS53237” --type=asn → 1 result(s)
AS53237 · TELECOMUNICACOES-BRASILEIRAS-S
TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS
AS53237 is owned by TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS and is a mid-size transit provider, established in Brazil in 2010. The system announces a solid 124 928 IPv4 addresses, and supports IPv6. The bulk of its IP address space is in Australia, with additional presence in Brazil. Prefix announcements for this AS were recently updated.
- 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
- December 10, 2010
- Last Changed
- March 04, 2026
- Last Seen
- September 06, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 38 / 8
- IPv6 Prefixes (raw / aggregated)
- 17 / 5
- IPv4 Addresses
- 124 928
- Largest IPv4 Prefix
- /17 (32 768 addresses)
- Largest IPv6 Prefix
- /34
- Geolocated Countries
- 🇦🇺 Australia (187 104 IPs), 🇧🇷 Brazil (52 816 IPs)
- Prefix Changed
- September 06, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 5 upstreams providing transit
- Peers
- 31 networks exchanging traffic without transit
- Downstream Customers
- 16 downstreams buying transit
- Unclassified
- 4 unclassified BGP neighbors
- Degree
- 56 unique BGP neighbors
- Reach
- 33 networks in customer cone
Upstream Providers (5)
Prefix Lists
IPv4 Prefixes (38 total)
- 177.14.128.0/17 (32 768 addresses (/17 prefix))
- 177.15.0.0/17 (32 768 addresses (/17 prefix))
- 177.14.64.0/18 (16 384 addresses (/18 prefix))
- 177.15.128.0/18 (16 384 addresses (/18 prefix))
- 177.88.0.0/19 (8 192 addresses (/19 prefix))
- 177.88.96.0/19 (8 192 addresses (/19 prefix))
- 177.88.160.0/19 (8 192 addresses (/19 prefix))
- 177.15.248.0/21 (2 048 addresses (/21 prefix))
IPv6 Prefixes (17 total)
- 2804:300:c000::/34
- 2804:301:4000::/34
- 2804:301:8000::/34
- 2804:302:4000::/35
- 2804:300:2001::/48