AS51824 — ALTERNATIVA-NET PE NIKOLAYENKO NIKOLAY IVANOVICH

AS51824 announces 2 IPv4 prefixes covering 1,024 addresses and 0 IPv6 prefixes.

About this network

ALTERNATIVA-NET is operated by PE NIKOLAYENKO NIKOLAY IVANOVICH.

What it's used for

• The address space carries residential internet access, evidenced by reverse DNS entries such as net-128-191.ispalternativa.net.ua and net-192-255.ispalternativa.net.ua.
• The AS announces 1024 IPv4 addresses across 2 prefixes and maintains 2 observed neighbours, a ratio indicative of a small local access network rather than a transit provider.
• Traffic from this AS consists of subscriber eyeballs for a local Ukrainian internet service provider.

Notable

• Registrants for both announced prefixes (91.221.84.0/23 and 192.162.196.0/23) are listed as PE NIKOLAYENKO NIKOLAY IVANOVICH, consistent with the AS holder.
• The inventory consists of two /23 blocks, totaling 1024 addresses, with no IPv6 prefixes announced.

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

Announced prefixes

• 91.221.84.0/23
• 192.162.196.0/23

Upstream networks

• AS43668 "AS43668" LLC
• AS48648 K-Link LLC

Adjacent networks

• AS43668 "AS43668" LLC
• AS48648 K-Link LLC

Routing security

• RPKI: 2 valid, 0 invalid and 0 not-found announcements; 4 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 4 route objects.
• Listed in as-sets: AS-ELHIM, AS-HURRICANE, AS-KLNK, AS-RETN-ACTUAL-V4.