AS51570 — SPB-AS JSC "ER-Telecom Holding"

AS51570 announces 36 IPv4 prefixes covering 123,648 addresses and 1 IPv6 prefixes.

About this network

The AS handle SPB-AS is held by JSC "ER-Telecom Holding".

What it's used for

• The address space carries residential broadband traffic, evidenced by reverse DNS entries such as 5x164x80x0.dynamic.spb.ertelecom.ru and dynamicip-188-187-95-255.pppoe.volgograd.ertelecom.ru.
• The AS announces 123,392 IPv4 addresses across 43 prefixes and 1 IPv6 prefix, while maintaining only 1 observed neighbour, a ratio indicative of an access network rather than a transit provider.
• Traffic from this AS consists of subscriber eyeballs for fixed-line internet access, primarily in the Saint Petersburg and Volgograd regions of Russia.

Notable

• All registrants align with the announcer, consistently listing JSC "ER-Telecom Holding" or its Saint Petersburg branch.
• The address inventory is finely subdivided into numerous /19, /20, and /21 blocks, reflecting site-by-site segmentation for a large regional ISP.

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

Announced prefixes

• 5.3.9.0/24
• 5.3.19.0/24
• 5.3.24.0/23
• 5.3.31.0/24
• 5.3.38.0/24
• 5.3.44.0/24
• 5.3.49.0/24
• 5.3.57.0/24
• 5.3.62.0/24
• 5.3.176.0/20
• 5.16.20.0/22
• 5.16.32.0/19
• 5.16.64.0/19
• 5.16.96.0/21
• 5.16.112.0/20
• 5.16.144.0/23
• 5.16.146.0/24
• 5.18.108.0/23
• 5.18.172.0/23
• 5.164.64.0/18
• 5.166.128.0/19
• 5.167.176.0/20
• 5.167.192.0/19
• 84.22.208.0/20
• 91.246.160.0/21
• 94.232.128.0/21
• 109.195.80.0/20
• 176.212.136.0/22
• 176.215.64.0/21
• 185.61.128.0/22
• 185.67.168.0/22
• 188.186.57.0/24
• 188.186.136.0/21
• 188.187.0.0/17
• 188.187.234.0/24
• 217.12.72.0/21
• 2a02:2698:6c00::/38

Upstream networks

• AS9049 JSC "ER-Telecom Holding"

Adjacent networks

• AS9049 JSC "ER-Telecom Holding"

Routing security

• RPKI: 5 valid, 0 invalid and 128 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 68% of announcements registered; 179 route objects.
• Listed in as-sets: AS-BLOCK-SET, AS-BLOCKED-RU, AS-ERTH-CITIES, AS-HURRICANEV6, AS-RETN-ACTUAL-V4, AS-RETN-ACTUAL-V6, AS-SPB, AS209141:AS-RUCUST.