AS51137 — VVS-mbH_AS Stadtwerke Saarbrucken GmbH

AS51137 announces 1 IPv4 prefixes covering 2,048 addresses and 1 IPv6 prefixes.

About this network

VVS-MBHAS is operated by Stadtwerke Saarbrücken GmbH.

What it's used for

• The address space is registered under the netname DE-VVS-20100608 with registrants Stadtwerke Saarbrucken GmbH, SW-GmbH RoleAccount, and SW-GmbH Abuse Team.
• The AS announces 2048 IPv4 addresses within a single /21 prefix and one IPv6 /32 prefix, with only 2 observed neighbours, indicating a small, self-contained internal network rather than a transit or large access provider.
• As a municipal utility, the traffic consists of internal corporate and operational systems for the city's energy and public services infrastructure.

Notable

• The registrants align directly with the AS holder, confirming the space is owned and managed by Stadtwerke Saarbrücken.
• The inventory is compact, consisting of a single contiguous IPv4 block and a single IPv6 prefix, typical of a corporate estate segmented for internal use.

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

Announced prefixes

• 178.250.120.0/21
• 2a02:2a28::/32

Upstream networks

• AS9063 VSE NET GmbH
• AS15965 CEGECOM S.A.

Adjacent networks

• AS9063 VSE NET GmbH
• AS15965 CEGECOM S.A.

Routing security

• RPKI: 0 valid, 0 invalid and 2 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 2 route objects.
• Listed in as-sets: AS-CEGECOM, AS-CEGECOM-V6, AS-HURRICANEV6, AS-SAARGATE, AS-SAARGATE-V6.