AS57121

Name: AS57121 — Piotr Bukowczyk trading as IT Systematic Group
Creator: ipdex

Piotr Bukowczyk trading as IT Systematic Group ISP registered in Poland

5IPv4 prefixes

0IPv6 prefixes

100%RPKI-valid

#39,846AS Rank

327/327RIS visibility

#347Rank in Poland

2011-07-25Allocated

Piotr Bukowczyk trading as IT Systematic Group (AS57121) — ISP, registered in Poland. announces 5 IPv4 prefixes + 0 IPv6 prefixes. Rank in Poland: #347. Allocated: 2011-07-25.

IPv4 5IPv6 0

Announced prefixes · 5

RPKI: rpki.cloudflare.com · 2026-06-17

Routing: 5 IPv4 · 0 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-17

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	5
2026-06-13	5

Internet Exchanges · 2

EPIX.Katowice Katowice/Silesia 10 Gbps
EPIX.Warszawa Warsaw 10 Gbps

Facilities · 2

2 Facilities · 1 Countries

4 Data Center Katowice
LIM Warsaw Warsaw

AS topology · Customer cone 1

Providers · 5

AS3257 GTT Communications Inc.
AS201054 Stowarzyszenie e-Poludnie
AS50607 Stowarzyszenie e-Poludnie
AS50606 Horyzont Technologie Internetowe sp.z.o.o.
AS50625 Krosnienskie Centrum Informatyczne "KROSOFT"

Peers · 2

AS24482 SG.GS
AS49544 i3D.net B.V

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