AS62429 — CSTNET "C.S.T". Ltd.

Network type: residential

AS62429 announces 7 IPv4 prefixes covering 7,424 addresses and 1 IPv6 prefixes.

About this network

CSTNET is operated by CSTNET "C.S.T". Ltd.

What it's used for

• The address space carries residential and business internet access, evidenced by reverse DNS entries like host-80-87-148-0.cstnet.ru and netnames such as RU-CSTNET-20050519 and CSTNET.
• The AS announces 7,424 IPv4 addresses across 7 prefixes and 1 IPv6 prefix, with 12 observed routing neighbours, indicating a regional access provider rather than a transit hub.
• Traffic from this AS consists of subscriber eyeballs and local business endpoints served by a regional cable/DSL ISP in the Russian Federation.

Notable

• Registrants for most prefixes align with the announcer, listing CSTNET NOC; "C.S.T". Ltd., while two prefixes (31.24.87.0/24 and 185.124.64.0/24) are registered to Navant LLC.
• The address inventory is fragmented across multiple /22, /23, and /24 blocks, with a mix of cstnet.ru and nwnet.ru reverse DNS domains.

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

Announced prefixes

• 31.24.87.0/24
• 80.87.144.0/20
• 91.195.16.0/23
• 91.197.160.0/22
• 185.18.90.0/24
• 185.35.116.0/22
• 185.124.64.0/24
• 2a00:db20::/32

Upstream networks

• AS35598 INETCOM CARRIER LLC
• AS8641 LLC "Nauka-Svyaz"
• AS29076 Citytelecom LLC
• AS1299 Arelion Sweden AB
• AS37721 Virtual Technologies & Solutions
• AS62255 BiMajLink d.o.o.
• AS24482 SG.GS

Downstream networks

• AS210281 EcoConnect LLC
• AS209558 PREMIUM KEA GRUP LLC

Adjacent networks

• AS35598 INETCOM CARRIER LLC
• AS29076 Citytelecom LLC
• AS1299 Arelion Sweden AB
• AS8641 LLC "Nauka-Svyaz"
• AS210281 EcoConnect LLC
• AS209558 PREMIUM KEA GRUP LLC
• AS62255 BiMajLink d.o.o.
• AS24482 SG.GS
• AS37721 Virtual Technologies & Solutions

Routing security

• RPKI: 8 valid, 0 invalid and 0 not-found announcements; 8 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 8 route objects.
• Listed in as-sets: AS-CLN, AS-CSTNET, AS-HURRICANE, AS-HURRICANEV6, AS-MEDIAL6, AS-NETORN, AS-RETN-ACTUAL-V4, AS-TNC, AS-TRANSROUTE-QUICKFIX, AS41194:AS-RASCOM.