AS57121 Piotr Bukowczyk trading as IT Systematic Group 🇵🇱 PL
Announcing 5 prefixes, seen at the RIS collectors.
IPv4 prefixes
5
7,424 (29 × /24)
IPv6 prefixes
0
-
Upstreams
5
transit providers observed
Peers
1
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS57121
- Name
- Piotr Bukowczyk trading as IT Systematic Group
- Organisation
- IT Systematic Group
- Country
- 🇵🇱 PL
- RIR
- RIPENCC
- Allocated
- 2011-07-25
- Network type
- Cable/DSL/ISP
- Traffic levels
- 10-20Gbps
- Scope
- Regional
- Peering policy
- Open
- IRR as-set
- AS57121:AS-SYSTEMATIC
- Website
- http://systematic.pl
- PeeringDB
- net/11919
- Exchanges
- 2
- Facilities
- 2
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
5 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 91.230.221.0/24 v4 | RPKI valid | 42 | 2448257121 | 2026-09-18 |
| 176.96.144.0/21 v4 | RPKI valid | 43 | 2448257121 | 2026-09-18 |
| 176.96.160.0/20 v4 | RPKI valid | 43 | 2448257121 | 2026-09-18 |
| 192.109.84.0/23 v4 | RPKI valid | 43 | 2448257121 | 2026-09-18 |
| 192.109.132.0/23 v4 | RPKI valid | 43 | 2448257121 | 2026-09-18 |