AS56981 — TOMSK-AS JSC "ER-Telecom Holding"

AS56981 announces 44 IPv4 prefixes covering 179,200 addresses and 1 IPv6 prefixes.

About this network

TOMSK-AS is operated by JSC "ER-Telecom Holding", specifically its Tomsk branch.

What it's used for

• The address space carries residential and business subscriber traffic, evidenced by reverse DNS entries such as static-business.tomsk.ertelecom.ru, static-user-109-124-31-255.tomtelnet.ru, and crt-c9006-vl1611.nts.su.
• The AS announces 175,104 IPv4 addresses across 71 prefixes and 1 IPv6 prefix, while maintaining only 1 observed neighbour in RIS. This high address-to-neighbour ratio indicates an access/eyeball network rather than a transit provider.
• Traffic from this AS consists of subscriber eyeballs and business endpoints within the Tomsk region, consistent with ER-Telecom's role as a regional telecommunications provider.

Notable

• Registrants consistently identify the holder as JSC "ER-Telecom Holding" or its Tomsk branch, with netnames like RU-RAID-20101119 and ERTH-TOMSK-NET aligning with the announcer.
• The address inventory is finely subdivided into numerous /20 and /21 blocks, reflecting site-by-site segmentation typical of a large regional ISP managing distinct customer pools.

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

Announced prefixes

• 5.77.0.0/20
• 5.165.208.0/21
• 31.211.0.0/17
• 46.161.128.0/18
• 62.68.128.0/20
• 62.68.144.0/24
• 77.106.92.0/23
• 77.106.95.0/24
• 77.106.96.0/20
• 77.245.168.0/21
• 78.139.216.0/21
• 79.136.144.0/20
• 79.136.216.0/21
• 79.136.232.0/21
• 79.136.240.0/20
• 82.117.160.0/19
• 83.172.0.0/20
• 83.172.16.0/22
• 83.172.44.0/22
• 83.172.56.0/22
• 88.204.8.0/21
• 88.204.16.0/20
• 88.204.32.0/21
• 88.204.48.0/21
• 88.204.56.0/23
• 88.204.58.0/24
• 88.204.60.0/22
• 88.204.64.0/21
• 88.204.120.0/21
• 92.243.96.0/20
• 92.243.120.0/21
• 95.174.192.0/19
• 109.124.0.0/18
• 109.194.32.0/20
• 109.227.192.0/18
• 176.213.208.0/21
• 185.103.68.0/22
• 185.130.80.0/22
• 188.187.128.0/21
• 188.187.226.0/24
• 188.234.160.0/21
• 188.235.120.0/21
• 213.183.96.0/20
• 213.183.112.0/22
• 2a02:2698:782a::/47

Upstream networks

• AS9049 JSC "ER-Telecom Holding"

Adjacent networks

• AS9049 JSC "ER-Telecom Holding"

Routing security

• RPKI: 2 valid, 0 invalid and 110 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 52% of announcements registered; 116 route objects.
• Listed in as-sets: AS-BLOCK-SET, AS-BLOCKED-RU, AS-CHEB, AS-ERTH-CITIES, AS-RETN-ACTUAL-V4, AS-TOMSK, AS209141:AS-RUCUST.