AS42435 ASTECNICASREUNIDAS Tecnicas Reunidas S.A.

ASTECNICASREUNIDAS Tecnicas Reunidas S.A. · registered in Spain

IPv4 addresses2,0481 prefixes · <0.001% of announced IPv4

Rank in Spain#344largest network in ES by IPv4 space, of 926 · <0.01% of ES

Rank worldwide#23,365of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySpain954 ASNs registered there

Open AS42435 in ASN lookup Look up an IP in this network (77.72.208.1) All networks in Spain

IPv4 prefixes

All 1 prefix, in address order.

77.72.208.0/21

Similar-sized networks in Spain

ASNNameIPv4 addresses

AS40973#341 JCCM Junta de Comunidades de Castilla-La Mancha2,048

AS41343#342 TRIUNFOTEL-ASN Free Technologies Excom S.L.2,048

AS42241#343 SODEFESA Mairena del Aljarafe city council2,048

AS43697#345 Govern-de-les-Illes-Balears Govern de les Illes Balears2,048

AS43707#346 CNENET Comision Nacional de los Mercados y la Competencia2,048

AS43747#347 ES-TELEVALENTIN-AS TELEVALENTIN, S.L2,048

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