AS41754 — ERTH-PENZA-AS

AS41754 announces 14 IPv4 prefixes covering 48,640 addresses and 1 IPv6 prefixes.

About this network

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

What it's used for

• The address space carries dynamic residential subscriber traffic, evidenced by reverse DNS entries such as 37x113x36x0.dynamic.penza.ertelecom.ru and dynamicip-94-181-132-0.pppoe.penza.ertelecom.ru.
• The AS announces 48,640 IPv4 addresses across 32 prefixes and 1 IPv6 prefix, while maintaining only 1 observed routing neighbour, a ratio indicative of an access network rather than a transit provider.
• Traffic consists of broadband subscriber connections for the Penza region, with some space also serving the Irkutsk region as indicated by 109x194x244x0.dynamic.irkutsk.ertelecom.ru records.

Notable

• Registrants consistently identify the holder as JSC "ER-Telecom Holding" or its Penza Branch, aligning with the AS announcer.
• The inventory is finely subdivided into /21 and /22 blocks, reflecting site-by-site segmentation for a large regional ISP estate.

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

Announced prefixes

• 5.3.43.0/24
• 37.112.24.0/21
• 37.113.8.0/21
• 37.113.16.0/20
• 37.113.32.0/19
• 77.245.160.0/21
• 91.144.144.0/22
• 91.144.176.0/22
• 94.181.128.0/18
• 109.194.128.0/20
• 109.194.240.0/20
• 176.212.128.0/21
• 185.7.48.0/22
• 188.187.250.0/24
• 2a02:2698:5c00::/38

Upstream networks

• AS9049 JSC "ER-Telecom Holding"

Adjacent networks

• AS9049 JSC "ER-Telecom Holding"

Routing security

• RPKI: 5 valid, 0 invalid and 53 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 86% of announcements registered; 104 route objects.
• Listed in as-sets: AS-BLOCK-SET, AS-BLOCKED-RU, AS-ERTH-CITIES, AS-HURRICANEV6, AS-PENZA, AS-RETN-ACTUAL-V4, AS-RETN-ACTUAL-V6, AS209141:AS-RUCUST.