AS203457 ICFO Fundacio Institut de Ciencies Fotoniques (ICFO)

ICFO Fundacio Institut de Ciencies Fotoniques (ICFO) · registered in Spain

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in Spain#733largest network in ES by IPv4 space, of 926 · <0.01% of ES

Rank worldwide#56,508of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySpain954 ASNs registered there

Open AS203457 in ASN lookup Look up an IP in this network (185.132.136.1) All networks in Spain

IPv4 prefixes

All 1 prefix, in address order.

185.132.136.0/23

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AS204286#734 cdn4you Invermae Solutions SL512

AS204513#735 SERCOM SERCOM INFORMATICA, S.L512

AS204563#736 TRT-MAD NexTReT S.L.512

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