AS204383 — CZ-SPCOM-AS SPCom s.r.o.

AS204383 announces 19 IPv4 prefixes covering 11,264 addresses and 1 IPv6 prefixes.

About this network

The AS handle CZ-SPCOM-AS is held by SPCom s.r.o.

What it's used for

• The address space carries corporate infrastructure, with netnames such as SPCOM-CASA and CZ-SPCOM-20180321 indicating internal segmentation.
• The AS announces 11,264 IPv4 addresses across 19 prefixes and 1 IPv6 prefix, while maintaining only 2 observed neighbours, a ratio consistent with a small, self-contained business network rather than a transit or access provider.
• As a smart building specialist in Hradec Králové, the traffic consists of office workers, building management systems, and internal IT endpoints.

Notable

• Registrants include SPCom s.r.o. and Casablanca INT a.s., with the latter managing several prefixes under the netname SPCOM-CASA, suggesting a historical relationship or acquisition.
• The inventory is finely subdivided into /22, /23, and /24 blocks, reflecting site-by-site segmentation typical of a corporate estate.

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

Announced prefixes

• 77.78.77.0/24
• 77.78.78.0/23
• 77.78.94.0/24
• 77.78.112.0/22
• 77.78.116.0/23
• 81.0.230.0/24
• 81.0.242.0/23
• 82.208.4.0/23
• 82.208.26.0/24
• 82.208.32.0/23
• 82.208.60.0/22
• 85.239.253.0/24
• 91.245.8.0/21
• 109.123.206.0/23
• 109.123.208.0/23
• 185.250.172.0/22
• 217.11.232.0/23
• 217.11.243.0/24
• 217.11.246.0/23
• 2a0c:fc0::/29

Upstream networks

• AS16019 Vodafone Czech Republic a.s.

Downstream networks

• AS208659 INNC s.r.o.

Adjacent networks

• AS16019 Vodafone Czech Republic a.s.
• AS208659 INNC s.r.o.

Routing security

• RPKI: 20 valid, 0 invalid and 0 not-found announcements; 20 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 20 route objects.
• Listed in as-sets: AS-ISPALLIANCE-CZ, AS204383:AS-CUS.