$ 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