AS41743 ASOPTIMASET OPTIMASET Ltd.

ASOPTIMASET OPTIMASET Ltd. · registered in Russia

IPv4 addresses2,3042 prefixes · <0.001% of announced IPv4

Rank in Russia#1,277largest network in RU by IPv4 space, of 4,937 · <0.01% of RU

Rank worldwide#20,456of 79,396 networks with IPv4

IPv68 x /32 (524,288 x /48)1 prefixes

CountryRussia4,993 ASNs registered there

Open AS41743 in ASN lookup Look up an IP in this network (176.115.136.1) All networks in Russia

IPv4 prefixes

All 2 prefixes, in address order.

176.115.136.0/21
193.187.159.0/24

IPv6 prefixes

All 1 prefix.

2a09:c80::/29

Similar-sized networks in Russia

ASNNameIPv4 addresses

AS210135#1274 YUG-TELECOM-K-AS Yug-Telecom-K Ltd.2,560

AS215314#1275 HELOU-AS Helou LLC2,560

AS199624#1276 DKTEL-AS DK Svyaz OOO2,304

AS56814#1278 T2TELECOM-AS M2 CONNECT LLC2,304

AS213861#1279 Vostrik-AS Vostrikov Rodion2,304

AS60476#1280 MYCOM-AS Digital Transformation Plus LLC2,304

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