AS20539 — TCRS-AS Sumy, Ukraine

Network type: hosting

AS20539 announces 5 IPv4 prefixes covering 12,800 addresses and 1 IPv6 prefixes.

About this network

TCRS-AS is operated by Technical Centre Radio Systems Ltd., a telecommunications provider based in Sumy, Ukraine.

What it's used for

• The address space carries residential and dynamic user traffic, evidenced by reverse DNS entries pointing to dynamic-pool.rs.net.ua and netnames like TCRS-NET.
• The AS announces 12,800 IPv4 addresses across 8 prefixes and maintains 15 observed neighbours, a ratio consistent with an access network serving end-users rather than a transit provider.

Notable

• Registrants for the majority of prefixes align with the announcer, listing "Technical Centre Radio Systems Ltd." and "TC Radio Systems Coordination Center," though one prefix (94.199.160.0/21) is registered to "MIK Telecom Ltd."
• The inventory consists of a mix of /20, /21, /22, and /23 blocks, primarily within the 31.135.0.0/16 range, alongside smaller allocations in 94.199.0.0/16 and other ranges.

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

Announced prefixes

• 31.135.128.0/19
• 91.201.224.0/22
• 94.199.160.0/21
• 193.178.228.0/23
• 194.146.228.0/22
• 2a02:680:8000::/36

Upstream networks

• AS3326 PRIVATE JOINT STOCK COMPANY "DATAGROUP"
• AS13249 PRIVATE JOINT STOCK COMPANY "DATAGROUP"
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS57463 NetIX Communications JSC
• AS41967 Sumski Telecom Systems Ltd

Downstream networks

• AS13202 Production Company POLISAN Ltd.

Adjacent networks

• AS3326 PRIVATE JOINT STOCK COMPANY "DATAGROUP"
• AS13249 PRIVATE JOINT STOCK COMPANY "DATAGROUP"
• AS6939 Hurricane Electric LLC
• AS57463 NetIX Communications JSC
• AS24482 SG.GS
• AS13202 Production Company POLISAN Ltd.
• AS41967 Sumski Telecom Systems Ltd

Internet exchanges

• Giganet Internet Exchange — Kyiv, Ukraine