AS42517 — ST

AS42517 announces 5 IPv4 prefixes covering 76,800 addresses and 1 IPv6 prefixes.

About this network

ST is the autonomous system for Schiphol Telematics B.V.

What it's used for

• The address space carries corporate and aviation infrastructure, evidenced by netnames such as NL-SCHIPHOLTELEMATICS and reverse DNS entries pointing to hosted-by.st.nl.
• The AS announces 76,800 IPv4 addresses across 5 prefixes and 1 IPv6 prefix, while maintaining 50 observed neighbours; this ratio indicates a business network providing connectivity and infrastructure services rather than a large-scale residential access provider.
• Traffic consists of IT communication infrastructure for aviation companies and national telecom operators located around Schiphol Airport.

Notable

• All registrants for the announced prefixes are Schiphol Telematics B.V., matching the AS holder.
• The address inventory is finely subdivided into five distinct IPv4 blocks, reflecting an internal corporate estate segmented by site or service.

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

Announced prefixes

• 77.241.224.0/20
• 89.248.128.0/20
• 109.69.224.0/21
• 145.35.0.0/16
• 185.130.240.0/22
• 2a00:1ae8::/32

Upstream networks

• AS174 Cogent Communications, LLC
• AS20562 Broadband Hosting B.V.
• AS6939 Hurricane Electric LLC
• AS24785 Broadband Hosting B.V.
• AS37721 Virtual Technologies & Solutions
• AS24482 SG.GS
• AS48185 team.blue NV
• AS50673 Serverius Holding B.V.
• AS204092 Association GRIFON
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS20485 Joint Stock Company TransTeleCom
• AS37100 SEACOM Limited
• AS6696 VERIXI SA
• AS29632 Netassist International EOOD
• AS17639 Converge ICT Solutions Inc.

Adjacent networks

• AS174 Cogent Communications, LLC
• AS20562 Broadband Hosting B.V.
• AS6939 Hurricane Electric LLC
• AS24785 Broadband Hosting B.V.
• AS37721 Virtual Technologies & Solutions
• AS204092 Association GRIFON
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS24482 SG.GS
• AS50673 Serverius Holding B.V.
• AS48185 team.blue NV
• AS37100 SEACOM Limited
• AS20485 Joint Stock Company TransTeleCom
• AS6696 VERIXI SA
• AS29632 Netassist International EOOD
• AS17639 Converge ICT Solutions Inc.

Internet exchanges

• Neutral Internet Exchange — Amsterdam, Netherlands
• Neutral Internet Exchange 2 — Amsterdam, Netherlands