AS199803 — ComSource ComSource s.r.o.

Network type: hosting

AS199803 announces 2 IPv4 prefixes covering 1,536 addresses and 1 IPv6 prefixes.

About this network

The AS handle COMSOURCE is held by ComSource s.r.o.

What it's used for

• The address space carries corporate network services, evidenced by netnames CZ-COMSOURCE-20140124 and ComSource-Service registered to ComSource s.r.o. and ComSource Tech.
• The AS announces 1,536 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, while maintaining 35 observed neighbours; this ratio of limited address space against a high neighbour count indicates a transit or interconnection role rather than a large-scale access network.
• Traffic from this AS consists of business and enterprise connectivity services provided by ComSource, a Czech company operating in the computer systems design and related services sector.

Notable

• Registrants for both announced IPv4 prefixes align with the AS holder, listing ComSource s.r.o. and ComSource Tech as the responsible entities.
• The address inventory is compact, consisting of two IPv4 blocks (185.45.200.0/22 and 185.138.108.0/23) and a single IPv6 prefix (2a01:7fe0::/32), all located in Czechia.

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

Announced prefixes

• 185.45.200.0/22
• 185.138.108.0/23
• 2a01:7fe0::/32

Upstream networks

• AS1299 Arelion Sweden AB
• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS29504 Freenet Liberec, z.s.
• AS24482 SG.GS
• AS8218 Zayo Infrastructure France SA

Downstream networks

• AS35592 Coolhousing s.r.o.
• AS205233 KBC GLOBAL SERVICES NV
• AS51013 WebSupport s.r.o.
• AS39790 Web4U s.r.o.
• AS29405 VNET a.s.
• AS25234 ACTIVE 24, s.r.o.
• AS35236 UVT Internet s.r.o.
• AS206591 Alza.cz a.s.
• AS206142 Internet TV, Inc.
• AS8778 Slovanet a.s.

Adjacent networks

• AS1299 Arelion Sweden AB
• AS3356 Level 3 Parent, LLC
• AS35592 Coolhousing s.r.o.
• AS6939 Hurricane Electric LLC
• AS205233 KBC GLOBAL SERVICES NV
• AS51013 WebSupport s.r.o.
• AS39790 Web4U s.r.o.
• AS29405 VNET a.s.
• AS35236 UVT Internet s.r.o.
• AS25234 ACTIVE 24, s.r.o.
• AS206591 Alza.cz a.s.
• AS206142 Internet TV, Inc.
• AS29504 Freenet Liberec, z.s.
• AS24482 SG.GS
• AS8218 Zayo Infrastructure France SA
• AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
• AS202297 Skylon Solutions Limited
• AS8778 Slovanet a.s.

Routing security

• RPKI: 3 valid, 0 invalid and 0 not-found announcements; 4 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 11 route objects.
• Listed in as-sets: AS-COMSOURCE, AS-HURRICANEV6, AS-PANTEL-SK-CZ, AS-SIXSK-MEMBERS, AS-WEBSUPPORT, AS42000:AS-UPSTREAMS.

Internet exchanges

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