$ query “AS42576” --type=asn → 1 result(s)
AS42576 · INTRSC-AS
Maciej Jan Broniarz trading as CERT NGO
AS42576 is operated by Maciej Jan Broniarz trading as CERT NGO and serves as an enterprise stub network, based in Poland since 2007. The system announces 512 IPv4 addresses. Most of its address space is geolocated to Poland. No IPv6 support — it's 2026, just saying.
Basic Information
- Country
- 🇵🇱 Poland
- Category
- Business
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- March 15, 2007
- Last Changed
- May 30, 2026
- Last Seen
- June 15, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 2 / 2
- IPv6 Prefixes (raw / aggregated)
- 0 / 0
- IPv4 Addresses
- 512
- Largest IPv4 Prefix
- /24 (256 addresses)
- Geolocated Countries
- 🇵🇱 Poland (768 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 2 upstreams providing transit
- Peers
- 5 networks exchanging traffic without transit
- Degree
- 7 unique BGP neighbors
- Reach
- 0 networks in customer cone
Upstream Providers (2)
Prefix Lists
IPv4 Prefixes (2 total)
- 91.192.224.0/24 (256 addresses (/24 prefix))
- 193.3.166.0/24 (256 addresses (/24 prefix))