AS200918 — ORELSOFT Pavel Zizka

AS200918 announces 7 IPv4 prefixes covering 5,376 addresses and 1 IPv6 prefixes.

About this network

The AS handle ORELSOFT is held by Pavel Zizka.

What it's used for

• The address space carries email infrastructure and VPN endpoints, evidenced by reverse DNS names such as ajn12.boxenv24.email, vmta-vspc4.boxenv30.email, and vpn.tharo.cz.
• The network announces 5,376 IPv4 addresses across 7 prefixes and 1 IPv6 prefix, with 7 observed neighbours, indicating a small-scale service provider or business network rather than a transit carrier.
• Traffic from this AS consists of email relay services and VPN connectivity, consistent with the operator's business focus on IT services and network infrastructure.

Notable

• Registrants include Pavel Zizka, Global Tech Distribution s.r.o., and Getredes S.L., with netnames like ORELSOFT-NET and CZ-ZIZKA confirming the primary holder.
• The address inventory is fragmented across multiple /22 and /23 blocks, including space registered to third parties like Getredes S.L. and Global Tech Distribution s.r.o., suggesting leased or historically acquired blocks.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 45.145.220.0/22
• 185.30.160.0/23
• 185.32.182.0/23
• 185.91.116.0/22
• 185.126.196.0/22
• 185.186.36.0/22
• 195.22.119.0/24
• 2a06:bfc0::/29

Upstream networks

• AS42000 Futruy s.r.o.
• AS62081 Stowarzyszenie e-Poludnie
• AS50607 Stowarzyszenie e-Poludnie
• AS201054 Stowarzyszenie e-Poludnie
• AS24482 SG.GS

Adjacent networks

• AS42000 Futruy s.r.o.
• AS62081 Stowarzyszenie e-Poludnie
• AS50607 Stowarzyszenie e-Poludnie
• AS24482 SG.GS
• AS201054 Stowarzyszenie e-Poludnie

Routing security

• RPKI: 10 valid, 0 invalid and 1 not-found announcements; 10 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 15 route objects.
• Listed in as-sets: AS-CPOP, AS-EP-POLMIX, AS-EPIX-LOCAL, AS-EPIX-TRANSIT, AS-HURRICANE, AS-HURRICANEV6, AS-KAORA, AS-KAORA-PEERING, AS-KAORA-TRANSIT, AS-TRANSROUTE-SPEC, AS200918:AS-ORELSOFT, AS207717:AS-ICATEL, AS29535:AS-MIX2.

Internet exchanges

• TPIX - Internet Exchange — Warsaw, Poland