AS51555 ASN-PREFERENCE PREFERENCE SL

ASN-PREFERENCE PREFERENCE SL · registered in Spain

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in Spain#842largest network in ES by IPv4 space, of 926 · <0.01% of ES

Rank worldwide#68,039of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySpain954 ASNs registered there

Open AS51555 in ASN lookup Look up an IP in this network (194.213.19.1) All networks in Spain

IPv4 prefixes

All 1 prefix, in address order.

194.213.19.0/24

Similar-sized networks in Spain

ASNNameIPv4 addresses

AS49118#839 GYD-AS GYD IBERICA SA256

AS49212#840 REALE-SEGUROS-AS REALE SEGUROS GENERALES, S.A256

AS50816#841 INESCOP-AS INSTITUTO TECNOLOGICO DEL CALZADO Y CONEXAS INESCOP256

AS51753#843 TRASMEDITERRANEA Compania TRASMEDITERRANEA, S.A.256

AS56551#844 CVQ1-RIPE Ayuntamiento Rivas Vaciamadrid256

AS60076#845 DONDE Dynamic Over Network De Espana SL256

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