AS2850 University-College-Dublin University College Dublin

University-College-Dublin University College Dublin · registered in Ireland

IPv4 addresses65,5361 prefixes · 0.002% of announced IPv4

Rank in Ireland#9largest network in IE by IPv4 space, of 197 · 1.23% of IE

Rank worldwide#3,061of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryIreland209 ASNs registered there

Open AS2850 in ASN lookup Look up an IP in this network (137.43.0.1) All networks in Ireland

IPv4 prefixes

All 1 prefix, in address order.

137.43.0.0/16

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ASNNameIPv4 addresses

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AS25441#10 IBIS-AS Imagine Communications Group Limited55,040

AS29650#11 VIATELAS-AS Digiweb ltd27,136

AS16171#12 STRENCOM Fulnett Limited26,624

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