AS201730 — DataSpring Cloud4com s.r.o.

AS201730 announces 6 IPv4 prefixes covering 5,376 addresses and 1 IPv6 prefixes.

About this network

DATASPRING is operated by Cloud4com s.r.o.

What it's used for

• The address space carries cloud and hosting infrastructure, evidenced by netnames such as CZ-CLOUD4COM1-20181112 and the reverse DNS entry test.cloud4com.com.
• The AS announces 5,376 IPv4 addresses across 6 prefixes and 1 IPv6 prefix, while maintaining 20 observed neighbours. This ratio indicates a hosting or cloud provider rather than a transit or access network.
• Traffic from this AS consists of web and API endpoints for enterprise, medium-sized, and public sector clients, consistent with Cloud4com's business model of providing cloud services to businesses and government institutions.

Notable

• Registrants for all announced prefixes consistently list DataSpring Hostmaster for AS201730 and Cloud4com s.r.o., aligning the registry data with the current operator.
• Cloud4com is part of the KKCG group, which also includes Springtide Ventures s.r.o. and other digital services.
• The inventory consists of five /22 blocks and one /24 block, all registered under the CZ-CLOUD4COM or CZ-ICT netnames, indicating a consolidated corporate estate.

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

Announced prefixes

• 37.221.88.0/22
• 185.65.92.0/22
• 185.78.100.0/22
• 185.138.244.0/22
• 185.146.148.0/22
• 194.169.252.0/24
• 2a03:1aa0::/32

Upstream networks

• AS16019 Vodafone Czech Republic a.s.
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS29504 Freenet Liberec, z.s.
• AS8218 Zayo Infrastructure France SA
• AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH

Adjacent networks

• AS16019 Vodafone Czech Republic a.s.
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS29504 Freenet Liberec, z.s.
• AS8218 Zayo Infrastructure France SA
• AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH

Routing security

• RPKI: 27 valid, 0 invalid and 0 not-found announcements; 28 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 44 route objects.
• Listed in as-sets: AS-CTIOL, AS-CZ-DS, AS-EXATEL-PL, AS-TRANSCZ, AS201730:AS-CZ-DS.

Internet exchanges

• NetIX — Sofia, Bulgaria
• NIX.CZ - Neutral Internet eXchange for the Czech Republic — Prague, Czech Republic