AS205515 — Telesystems Telecommunication Systems LLC

AS205515 announces 4 IPv4 prefixes covering 25,088 addresses and 0 IPv6 prefixes.

About this network

The AS handle TELESYSTEMS is held by Telecommunication Systems LLC.

What it's used for

• The address space carries residential and business access traffic, evidenced by reverse DNS entries pointing to tscrimea.ru (e.g., 77.123.223.255.tscrimea.ru).
• The network announces 25,088 IPv4 addresses across 4 prefixes while maintaining only 2 observed neighbours, a ratio characteristic of an access or eyeball network rather than a transit provider.
• Traffic from this AS consists of subscriber connections for the operator's regional service area, specifically serving the Crimea region as indicated by the domain suffix.

Notable

• Registrants for all announced prefixes align with the announcer, listing Telecommunication Systems LLC under the netname RU-TELESYSTEMS-20061124 and RU-TELESYSTEMS-20240722.
• The address inventory is concentrated in the 77.121.0.0/16 and 77.123.0.0/16 ranges, with a smaller block in 194.39.0.0/16.

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

Announced prefixes

• 77.121.14.0/24
• 77.121.32.0/19
• 77.123.192.0/18
• 194.39.249.0/24

Upstream networks

• AS28761 CrimeaCom South LLC
• AS48084 Uzhnie Magistraljnie Linii Svyazi LLC

Adjacent networks

• AS28761 CrimeaCom South LLC
• AS48084 Uzhnie Magistraljnie Linii Svyazi LLC

Routing security

• RPKI: 0 valid, 0 invalid and 11 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 13 route objects.
• Listed in as-sets: AS-BLOCK-SET, AS-BLOCKED-RU, AS-CRIMEA-IX, AS-HURRICANE, AS-M-IX, AS-MRNDA, AS-RETN-ACTUAL-V4, AS-TRANSROUTE-SPEC, AS-UMLC, AS28761:AS-CUSTOMERS.