AS51681 DATIUM SINEASEN S.L.

DATIUM SINEASEN S.L. · registered in Spain

IPv4 addresses6,1445 prefixes · <0.001% of announced IPv4

Rank in Spain#148largest network in ES by IPv4 space, of 926 · 0.02% of ES

Rank worldwide#12,468of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySpain954 ASNs registered there

Open AS51681 in ASN lookup Look up an IP in this network (178.239.208.1) All networks in Spain

IPv4 prefixes

All 5 prefixes, in address order.

178.239.208.0/20
185.105.16.0/24
185.191.8.0/22
185.251.188.0/23
185.251.190.0/24

Similar-sized networks in Spain

ASNNameIPv4 addresses

AS51678#145 IBERMATICA AYESA IBERMATICA, SAU6,144

AS206451#146 GPONLINEA GPON Linea S.L.6,144

AS34285#147 JJAA-AS Sociedad Andaluza para el Desarrollo de las Telecomunicaciones S.A. Medio Propio6,144

AS206837#149 airwifi Air Wifi S.L.6,144

AS56958#150 RaiolaNetworks Raiola Networks S.L.5,888

AS43160#151 ES-TEMPLUS-SPAIN TEMPLUS SPAIN SL5,888

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