AS41733 — ZTELECOM-AS

AS41733 announces 53 IPv4 prefixes covering 301,824 addresses and 0 IPv6 prefixes.

About this network

ZTELECOM-AS is operated by JSC "ER-Telecom Holding".

What it's used for

• The address space carries static business and residential access traffic, evidenced by reverse DNS entries such as static-business.spb.ertelecom.ru and netnames like ERTH-SPB-PPPOE-17-NET.
• The AS announces 301,824 IPv4 addresses across 76 prefixes with only 2 observed neighbours, a ratio characteristic of an access network rather than a transit provider.
• Traffic consists of subscriber eyeballs and business static IPs, primarily serving the Saint Petersburg region as indicated by the spb subdomain in reverse DNS and the Saint Petersburg branch registrants.

Notable

• Registrants consistently identify JSC "ER-Telecom Holding" and its Saint Petersburg branch, aligning with the announcer.
• The address inventory is heavily concentrated in the 5.16.0.0/14 and 5.17.0.0/14 blocks, with additional space in 84.52.0.0/16 and 109.167.0.0/16.
• Some prefixes, such as 84.52.64.0/18 and 109.167.128.0/18, show reverse DNS for westcall.net, indicating historical or leased space from a predecessor or partner.

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

Announced prefixes

• 5.16.147.0/24
• 5.16.148.0/22
• 5.16.152.0/21
• 5.16.192.0/18
• 5.17.0.0/16
• 5.18.0.0/18
• 5.18.64.0/19
• 5.18.96.0/21
• 5.18.104.0/22
• 5.18.110.0/23
• 5.18.112.0/20
• 5.18.128.0/19
• 5.18.160.0/21
• 5.18.168.0/22
• 5.18.174.0/23
• 5.18.176.0/20
• 5.18.193.0/24
• 5.18.194.0/23
• 5.18.196.0/22
• 5.18.200.0/21
• 5.18.208.0/20
• 5.18.224.0/19
• 5.19.0.0/20
• 5.19.64.0/19
• 5.19.128.0/17
• 37.112.248.0/21
• 62.182.88.0/21
• 77.244.16.0/20
• 80.246.240.0/20
• 83.136.240.0/21
• 84.52.64.0/18
• 88.204.96.0/23
• 91.202.220.0/22
• 91.203.168.0/22
• 94.247.240.0/21
• 109.167.128.0/18
• 109.167.192.0/19
• 109.167.224.0/20
• 109.167.240.0/21
• 109.167.248.0/23
• 109.167.250.0/24
• 109.167.253.0/24
• 109.167.255.0/24
• 176.221.8.0/21
• 185.7.200.0/22
• 185.42.80.0/22
• 185.202.212.0/22
• 188.134.0.0/19
• 188.134.64.0/18
• 194.24.240.0/23
• 194.246.112.0/23
• 195.177.120.0/22
• 212.75.224.0/19

Upstream networks

• AS9049 JSC "ER-Telecom Holding"

Adjacent networks

• AS9049 JSC "ER-Telecom Holding"
• AS25408 JSC "ER-Telecom Holding"

Internet exchanges

• GNM Internet Exchange Amsterdam — Amsterdam, Netherlands