AS57378 ROSTOV-AS JSC "ER-Telecom Holding"

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

IPv4 addresses64,51241 prefixes · 0.002% of announced IPv4

Rank in Russia#87largest network in RU by IPv4 space, of 4,937 · 0.15% of RU

Rank worldwide#3,521of 79,396 networks with IPv4

IPv61,024 x /481 prefixes

CountryRussia4,993 ASNs registered there

Open AS57378 in ASN lookup Look up an IP in this network (5.3.232.1) All networks in Russia

IPv4 prefixes

All 41 prefixes, in address order.

5.3.232.0/21
5.165.176.0/21
5.165.240.0/20
5.166.232.0/21
5.167.48.0/21
5.167.112.0/20
37.112.32.0/21
37.112.224.0/20
46.147.96.0/22
46.147.100.0/24
46.147.101.0/24
46.147.102.0/23
46.147.104.0/21
46.147.112.0/24
46.147.113.0/24
46.147.114.0/23
46.147.116.0/22
46.147.120.0/21
46.147.208.0/21
46.147.216.0/22
46.147.220.0/23
46.147.222.0/24
46.147.223.0/24
46.147.240.0/21
79.136.176.0/20
92.243.112.0/21
94.180.56.0/21
94.181.60.0/23
94.181.62.0/24
109.195.224.0/21
109.195.232.0/22
109.195.236.0/22
176.212.32.0/20
176.212.56.0/21
176.213.32.0/21
176.213.136.0/22
176.213.140.0/23
176.213.142.0/23
176.214.176.0/21
188.187.208.0/21
188.187.219.0/24

IPv6 prefixes

All 1 prefix.

2a02:2698:6000::/38

Similar-sized networks in Russia

ASNNameIPv4 addresses

AS2875#84 JINR-AS Joint Institute for Nuclear Research65,536

AS31214#85 TIS-DIALOG-AS TIS Dialog LLC64,512

AS48524#86 INTERRA-AS INTERRA telecommunications group, Ltd.64,512

AS5563#88 URAL JSC "ER-Telecom Holding"64,000

AS41668#89 ERTH-KAZAN-AS JSC "ER-Telecom Holding"62,976

AS6856#90 IC-VORONEZH-AS AO IK "Informsvyaz-Chernozemye"62,464

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