AS50477 — SV-EN-AS Svyaz-Energo Ltd.

AS50477 announces 9 IPv4 prefixes covering 20,480 addresses and 1 IPv6 prefixes.

About this network

SV-EN-AS is operated by Svyaz-Energo Ltd.

What it's used for

• The address space carries residential and access traffic, evidenced by netnames like SVEN-Users and reverse DNS entries such as access-178-57-59-255.kmtn.ru and 254-117-19-46.sv-en.ru.
• The AS announces 20,480 IPv4 addresses across 18 prefixes and 1 IPv6 prefix, while maintaining only 9 observed neighbours. This high address-to-neighbour ratio indicates an access or eyeball network rather than a transit provider.
• Traffic from this AS consists of subscriber eyeballs, specifically residential internet users connected via the operator's access infrastructure.

Notable

• Registrants are consistent with the announcer, primarily listing Svyaz-Energo Ltd. and Kmtn NOC, with one prefix registered to Aksioma Ltd.
• The address inventory is fragmented into multiple /21, /22, /23, and /24 blocks, suggesting a history of incremental allocation or acquisition of address space.

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

Announced prefixes

• 5.149.200.0/21
• 46.19.112.0/21
• 109.236.208.0/20
• 134.19.144.0/20
• 178.57.56.0/21
• 185.34.244.0/22
• 185.188.96.0/22
• 194.58.168.0/21
• 194.58.184.0/21
• 2a04:6000::/29

Upstream networks

• AS31133 PJSC MegaFon
• AS20764 CJSC RASCOM
• AS58067 JOINT-STOCK COMPANY "MOSCOW ENERGY COMMUNICATION NODE"
• AS8359 MTS PJSC
• AS6939 Hurricane Electric LLC
• AS60388 JSC "Oil Transportation and Production Telecommunications"
• AS24482 SG.GS
• AS49673 Truenetwork LLC
• AS44507 JSC Kostroma Municipal Telephone Network

Downstream networks

• AS44507 JSC Kostroma Municipal Telephone Network
• AS197298 Multifunctional Telecommunications Systems LTD
• AS205062 LightPort Ltd
• AS42551 TALTEL LLC

Adjacent networks

• AS20764 CJSC RASCOM
• AS31133 PJSC MegaFon
• AS197298 Multifunctional Telecommunications Systems LTD
• AS58067 JOINT-STOCK COMPANY "MOSCOW ENERGY COMMUNICATION NODE"
• AS44507 JSC Kostroma Municipal Telephone Network
• AS8359 MTS PJSC
• AS60388 JSC "Oil Transportation and Production Telecommunications"
• AS205062 LightPort Ltd
• AS6939 Hurricane Electric LLC
• AS42551 TALTEL LLC
• AS24482 SG.GS
• AS49673 Truenetwork LLC

Routing security

• RPKI: 32 valid, 0 invalid and 0 not-found announcements; 36 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 55 route objects.
• Listed in as-sets: AS-ATEL-PEER, AS-BLOCK-SET, AS-BLOCKED-RU, AS-CHTE, AS-CHTE-V6, AS-HURRICANE, AS-HURRICANEV6, AS-MSV, AS-MTSDV, AS-RETN-ACTUAL-V4, AS-ROSPRINT, AS-SET-IPV6-KMTN, AS-SET-IPV6-SVEN, AS-SET-KMTN, AS-SET-SVEN, AS209141:AS-RUCUST, AS3491:AS-CUSTOMERS-AP, AS3491:AS-CUSTOMERS-EU, AS41194:AS-RASCOM.

Internet exchanges

• MSK-IX Moscow — Moscow, Russia