AS201042 — SD1-Telecom SD1-Telecom SRL

AS201042 announces 6 IPv4 prefixes covering 1,792 addresses and 1 IPv6 prefixes.

About this network

SD1-TELECOM is operated by SD1 Telecom SRL, a Belgian telecommunications provider based in Braine-l’Alleud.

What it's used for

• The address space carries a mix of Cogent Communications infrastructure and SD1 Telecom's own allocations, with netnames including COGENT-154-52-16, SD1-CGNT-NET-1, and BE-SD1-TELECOM-20231005.
• The AS announces 1792 IPv4 addresses across 6 prefixes and 1 IPv6 prefix, with 3 observed neighbours, indicating a small-scale network focused on specific service delivery rather than broad transit.
• Traffic from this AS consists of SD-WAN solutions and telecommunications services for business clients in Belgium, the Netherlands, and Luxembourg.

Notable

• Registrants include both Cogent Communications, LLC and SD1-Telecom SRL, reflecting a combination of leased infrastructure and owned address space.
• The address inventory is finely subdivided into six distinct IPv4 prefixes, suggesting site-by-site segmentation for corporate or enterprise clients.

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

Announced prefixes

• 81.2.148.0/24
• 154.52.36.0/24
• 154.52.49.0/24
• 154.52.51.0/24
• 154.52.52.0/23
• 194.13.142.0/24
• 2a13:4840::/29

Upstream networks

• AS1299 Arelion Sweden AB
• AS29467 LUXNETWORK S.A.
• AS174 Cogent Communications, LLC

Adjacent networks

• AS1299 Arelion Sweden AB
• AS29467 LUXNETWORK S.A.
• AS174 Cogent Communications, LLC

Routing security

• RPKI: 2 valid, 0 invalid and 6 not-found announcements; 2 ROAs.
• ASPA: none published.
• IRR: 75% of announcements registered; 6 route objects.
• Listed in as-sets: AS-LUXNETWORK, AS201042:AS-SD1TEL.