AS203132 — SySS SySS GmbH

AS203132 announces 2 IPv4 prefixes covering 768 addresses and 3 IPv6 prefixes.

About this network

SYSS is the autonomous system for SySS GmbH, a German IT security firm specializing in penetration testing.

What it's used for

• The address space carries corporate infrastructure, evidenced by reverse DNS entries like ptsr.sy.gs and ip126.syss.de, and netnames DE-SYSS-20160310 and SySS-Services.
• The AS announces 768 IPv4 addresses across 2 prefixes and 3 IPv6 prefixes, with only 2 observed routing neighbours, indicating a small, self-contained corporate estate rather than a transit or access network.
• Traffic from this AS consists of internal office workers, security researchers, and web/API endpoints associated with SySS's penetration testing and security consulting services.

Notable

• Registrants for the announced prefixes are SySS GmbH and Abuse-C Role, which aligns with the AS holder.
• The address inventory is finely subdivided, including IPv6 prefixes with memorable suffixes such as 2a07:2f00:1337::/48 and 2a07:2f00:dead::/48, reflecting a corporate internal network structure.

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

Announced prefixes

• 185.142.184.0/23
• 185.142.186.0/24
• 2a07:2f00::/48
• 2a07:2f00:1337::/48
• 2a07:2f00:dead::/48

Upstream networks

• AS12502 Dr.-Ing. Nepustil & Co. GmbH Internet Service Center Ingenieurgesellschaft fuer Systemsoftware und Kommunikationstechnik
• AS3320 Deutsche Telekom AG

Adjacent networks

• AS12502 Dr.-Ing. Nepustil & Co. GmbH Internet Service Center Ingenieurgesellschaft fuer Systemsoftware und Kommunikationstechnik
• AS3320 Deutsche Telekom AG

Routing security

• RPKI: 5 valid, 0 invalid and 1 not-found announcements; 5 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 7 route objects.
• Listed in as-sets: AS-INTERSCHOLZ, AS-NEPUSTIL, AS3320:AS-DTAG, AS3320:AS-DTAG-V6.