AS39028 ULSK-AS JSC "ER-Telecom Holding"

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

IPv4 addresses27,39215 prefixes · <0.001% of announced IPv4

Rank in Russia#205largest network in RU by IPv4 space, of 4,937 · 0.06% of RU

Rank worldwide#5,220of 79,396 networks with IPv4

IPv61,024 x /481 prefixes

CountryRussia4,993 ASNs registered there

Open AS39028 in ASN lookup Look up an IP in this network (5.3.64.1) All networks in Russia

IPv4 prefixes

All 15 prefixes, in address order.

5.3.64.0/20
5.164.0.0/20
5.166.240.0/21
5.167.56.0/21
94.181.16.0/21
109.195.192.0/20
146.247.0.0/23
176.212.240.0/21
176.213.104.0/22
176.213.108.0/24
176.213.109.0/24
176.213.110.0/23
188.187.227.0/24
188.233.192.0/21
188.233.200.0/21

IPv6 prefixes

All 1 prefix.

2a02:2698:8400::/38

Similar-sized networks in Russia

ASNNameIPv4 addresses

AS47759#202 POIG-AS POIG Ltd.28,416

AS210079#203 EUROBYTE EuroByte LLC28,416

AS48287#204 RU-CENTER JSC "RU-CENTER"27,904

AS21367#206 WILAND-AS TrunkMobile JSC27,136

AS43727#207 KVANT-TELECOM JSC KVANT-TELEKOM27,136

AS39442#208 UNICO-AS JSC RDE "Unico"27,136

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