$ query “AS8501” --type=asn → 1 result(s)
AS8501 — PIONIER-AS
Institute of Bioorganic Chemistry Polish Academy of Science Poznan Supercomputing and Networking Center
AS8501 is a mid-size transit provider operated by Institute of Bioorganic Chemistry Polish Academy of Science…, registered in Poland since 2002. The network announces 2 048 IPv4 addresses. Supports IPv6.
- Top 5% — Top 5% of all autonomous systems by reach and degree
Basic Information
- Country
- 🇵🇱 Poland
- Category
- Education/Research
- Network Role
- Mid-size Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- September 06, 2002
- Last Changed
- March 04, 2026
- Last Seen
- March 05, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 8 / 6
- IPv6 Prefixes (raw / aggregated)
- 1 / 1
- IPv4 Addresses
- 2 048
- Largest IPv4 Prefix
- /23 (512 addresses)
- Largest IPv6 Prefix
- /35
- Geolocated Countries
- 🇵🇱 PL (6 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs out of 2 048 total (0.00%)
Connectivity Summary
- Upstream Providers
- 5 upstream autonomous systems providing transit
- Peers
- 4 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 24 downstream autonomous systems buying transit
- Degree
- 33 unique BGP neighbors (providers + customers + peers)
- Reach
- 76 — customer cone size measuring network influence
- Degree Rank
- #4 237
- Reach Rank
- #1 293
Upstream Providers (5)
Prefix Lists
IPv4 Prefixes (8 total)
- 212.191.224.0/23 (512 addresses)
- 212.191.240.0/23 (512 addresses)
- 212.191.126.0/24 (256 addresses)
- 212.191.227.0/24 (256 addresses)
- 212.191.229.0/24 (256 addresses)
- 212.191.244.0/24 (256 addresses)
IPv6 Prefixes (1 total)
- 2001:b10:c000::/35