AS57899 — MASANDRA-AS For massandra.su

AS57899 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

The AS handle MASANDRA-AS is held by Nikita Sergienko.

What it's used for

• The space carries a single IPv4 prefix, 91.236.135.0/24, with the netname RU-SERGIENKO and registrant listed as "Admin; Nikita Sergienko; Abuse-C Role".
• The inventory consists of 256 IPv4 addresses across 1 prefix, with 0 IPv6 prefixes announced.
• With 1 observed neighbour, the routing profile suggests a small, isolated network rather than a transit or large access provider.

Notable

• The registrant data aligns with the AS holder, identifying Nikita Sergienko as the administrative contact.
• The address inventory is minimal, comprising a single /24 block in the Russian Federation.

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

Announced prefixes

• 91.236.135.0/24

Upstream networks

• AS28761 CrimeaCom South LLC

Adjacent networks

• AS28761 CrimeaCom South LLC

Routing security

• RPKI: 1 valid, 0 invalid and 0 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 1 route objects.
• Listed in as-sets: AS-ACSGROUP, AS-ACSGROUP-FULL, AS-CRIMEA-IX, AS-MRNDA, AS-TRANSROUTE-SPEC, AS28761:AS-CUSTOMERS.