$ 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 11 008 IPv4 addresses. Most of its address space is geolocated to Brazil, with additional presence in Australia and Mexico, and a smaller footprint in another country. 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 11, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 41 / 7
- IPv6 Prefixes (raw / aggregated)
- 0 / 0
- IPv4 Addresses
- 11 008
- Largest IPv4 Prefix
- /20 (4 096 addresses)
- Geolocated Countries
- 🇧🇷 Brazil (5 376 IPs), 🇦🇺 Australia (4 352 IPs), 🇲🇽 Mexico (1 024 IPs) and 1 more
- Prefix Changed
- August 08, 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 (41 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))
- 23.134.108.0/24 (256 addresses (/24 prefix))
- 187.31.20.0/24 (256 addresses (/24 prefix))
- 187.203.241.0/24 (256 addresses (/24 prefix))