$ query “AS29987” --type=asn → 1 result(s)
AS29987 · SINFONY6
Sinfony6 LLC
AS29987 is operated by Sinfony6 LLC and serves as an educational/research access provider, established in the United States in 2025. The system announces a respectable 10 752 IPv4 addresses. Most of its address space is geolocated to Brazil, with additional presence in Australia and Mexico. This AS has recently updated its prefix announcements. No IPv6 support — it's 2026, just saying.
Basic Information
- Country
- 🇺🇸 United States
- Category
- Education/Research
- Network Role
- Access Provider
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- February 11, 2025
- Last Changed
- September 01, 2026
- Last Seen
- September 22, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 40 / 6
- IPv6 Prefixes (raw / aggregated)
- 0 / 0
- IPv4 Addresses
- 10 752
- Largest IPv4 Prefix
- /20 (4 096 addresses)
- Geolocated Countries
- 🇧🇷 Brazil (5 376 IPs), 🇦🇺 Australia (4 352 IPs), 🇲🇽 Mexico (1 024 IPs)
- Prefix Changed
- September 20, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 2 upstreams providing transit
- Peers
- 1 network exchanging traffic without transit
- Downstream Customers
- 1 downstream buying transit
- Degree
- 4 unique BGP neighbors
- Reach
- 2 networks in customer cone
Upstream Providers (2)
Prefix Lists
IPv4 Prefixes (40 total)
- 187.31.0.0/20 (4 096 addresses (/20 prefix))
- 187.203.208.0/20 (4 096 addresses (/20 prefix))
- 187.31.16.0/22 (1 024 addresses (/22 prefix))
- 187.31.100.0/22 (1 024 addresses (/22 prefix))
- 187.31.20.0/24 (256 addresses (/24 prefix))
- 187.203.241.0/24 (256 addresses (/24 prefix))