AS203170 — GERRIT-01 GERRIT Diensten BV

AS203170 announces 2 IPv4 prefixes covering 1,536 addresses and 1 IPv6 prefixes.

About this network

GERRIT-01 is operated by GERRIT Diensten BV.

What it's used for

• The address space carries corporate infrastructure for GERRIT and the Wilhelmina Ziekenhuis Assen, evidenced by netnames NL-GERRIT3-20141119 and WZA-NL-ASSEN and reverse DNS entries wijzijngerrit.nl and static.wza.nl.
• The AS announces 1536 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, with only 1 observed neighbour, indicating a small, isolated corporate network rather than a transit or access provider.
• Traffic consists of internal corporate endpoints and hospital network infrastructure for the GERRIT engineering firm and its associated healthcare client.

Notable

• Registrants differ between the two announced prefixes: 193.177.232.0/22 is registered to Stichting Wilhelmina Ziekenhuis Assen while 185.77.190.0/23 is registered to GERRIT Diensten BV, suggesting a multi-tenant or partner arrangement within the same AS.
• The inventory is finely subdivided into two distinct IPv4 blocks and one IPv6 block, consistent with an internal corporate estate segmented by organizational unit.

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

Announced prefixes

• 185.77.190.0/23
• 193.177.232.0/22
• 2a05:5f00::/30

Upstream networks

• AS35467 DDFR IT Infra & Security B.V.

Adjacent networks

• AS35467 DDFR IT Infra & Security B.V.

Routing security

• RPKI: 4 valid, 0 invalid and 0 not-found announcements; 6 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 4 route objects.
• Listed in as-sets: AS-DCF, AS-DDFR, AS-RETN-ACTUAL-V4, AS-RETN-ACTUAL-V6.