$ query “AS28202” --type=asn → 1 result(s)
AS28202 — MASTER
MASTER S/A
AS28202 is a mid-size transit provider operated by MASTER S/A, registered in Brazil since 2008. The network announces a solid 212 992 IPv4 addresses, including a /16. Supports IPv6.
- 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 09, 2008
- Last Changed
- March 04, 2026
- Last Seen
- March 04, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 781 / 9
- IPv6 Prefixes (raw / aggregated)
- 4 / 1
- IPv4 Addresses
- 212 992
- Largest IPv4 Prefix
- /16 (65 536 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇧🇷 BR (21 IPs), 🇦🇺 AU (5 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Good — 98 flagged IPs out of 212 992 total (0.05%)
Connectivity Summary
- Upstream Providers
- 5 upstream autonomous systems providing transit
- Peers
- 26 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 29 downstream autonomous systems buying transit
- Degree
- 65 unique BGP neighbors (providers + customers + peers)
- Reach
- 136 — customer cone size measuring network influence
- Degree Rank
- #2 491
- Reach Rank
- #939
Upstream Providers (5)
Prefix Lists
IPv4 Prefixes (781 total)
- 191.53.0.0/16 (65 536 addresses)
- 177.44.0.0/17 (32 768 addresses)
- 191.240.0.0/17 (32 768 addresses)
- 177.130.128.0/18 (16 384 addresses)
- 186.216.64.0/18 (16 384 addresses)
- 187.44.0.0/18 (16 384 addresses)
- 187.120.64.0/18 (16 384 addresses)
- 179.189.160.0/19 (8 192 addresses)
- 189.91.0.0/19 (8 192 addresses)
IPv6 Prefixes (4 total)
- 2804:87c::/32