AS213557 Underscore Underscore S.r.l.

Underscore Underscore S.r.l. · registered in San Marino

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in San Marino#9largest network in SM by IPv4 space, of 10 · 0.68% of SM

Rank worldwide#75,732of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySan Marino10 ASNs registered there

Open AS213557 in ASN lookup Look up an IP in this network (185.125.240.1) All networks in San Marino

IPv4 prefixes

All 1 prefix, in address order.

185.125.240.0/24

Similar-sized networks in San Marino

ASNNameIPv4 addresses

AS199325#6 SEMPLIFY Semplify Srl1,024

AS201852#7 BLUINDACO-AS Bluindaco S.R.L.1,024

AS212841#8 SM-AASS A.A.S.S. Azienda Autonoma di Stato per i Servizi Pubblici256

AS215511#10 SA-CONSULTING-SPA-SORG Underscore S.r.l.256

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