AS51819 YAR-AS JSC "ER-Telecom Holding"

YAR-AS JSC "ER-Telecom Holding" · registered in Russia

IPv4 addresses47,61617 prefixes · 0.002% of announced IPv4

Rank in Russia#121largest network in RU by IPv4 space, of 4,937 · 0.11% of RU

Rank worldwide#4,020of 79,396 networks with IPv4

IPv61,024 x /481 prefixes

CountryRussia4,993 ASNs registered there

Open AS51819 in ASN lookup Look up an IP in this network (5.3.28.1) All networks in Russia

IPv4 prefixes

All 17 prefixes, in address order.

5.3.28.0/24
5.165.160.0/21
5.165.168.0/22
5.165.172.0/22
5.165.216.0/21
5.166.0.0/19
5.167.32.0/20
5.167.80.0/20
37.113.72.0/21
37.113.88.0/21
37.113.240.0/21
109.195.112.0/20
176.212.48.0/21
176.212.80.0/21
176.214.64.0/19
176.215.88.0/21
188.187.233.0/24

IPv6 prefixes

All 1 prefix.

2a02:2698:9400::/38

Similar-sized networks in Russia

ASNNameIPv4 addresses

AS30922#118 MTS-FBN-Siberia-AS MTS PJSC48,896

AS41754#119 ERTH-PENZA-AS JSC "ER-Telecom Holding"48,640

AS41560#120 UT-SVR UGMK-Telecom LLC47,872

AS33934#122 VolgogradEC-AS PJSC Rostelecom47,360

AS42038#123 VLADLINK-AS Krivets Sergey Sergeevich47,104

AS29226#124 MASTERTEL-AS JSC Mastertel46,592

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources