AS211274 — QCZ Quadruple a.s.

AS211274 announces 1 IPv4 prefixes covering 256 addresses and 2 IPv6 prefixes.

About this network

Q is the AS handle for Quadruple a.s., a Czech telecommunications provider.

What it's used for

• The space carries corporate and business traffic, evidenced by the netname CZ-QUADRUPLE-20210426 and registrant Quadruple a.s.
• The AS announces 256 IPv4 addresses and 2 IPv6 prefixes, with only 2 observed neighbours, indicating a small-scale access or business network rather than a transit provider
• Traffic from this AS consists of business and enterprise users served by Quadruple a.s., a company registered in Prague that provides telecommunications services

Notable

• The registrant Quadruple a.s. matches the AS holder, confirming consistent ownership of the address space
• The address inventory is compact, consisting of a single /24 IPv4 block and two small IPv6 prefixes, typical of a regional business ISP

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

Announced prefixes

• 193.56.11.0/24
• 2a0b:4742::/31
• 2a0b:4746::/31

Upstream networks

• AS5610 O2 Czech Republic, a.s.

Adjacent networks

• AS5610 O2 Czech Republic, a.s.

Routing security

• RPKI: 5 valid, 0 invalid and 0 not-found announcements; 9 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 9 route objects.
• Listed in as-sets: AS-CTIOL, AS-KTCZ-NET.