The report below shows ASNs assigned to Ireland, ranked by the total number of IP addresses currently active on each network. Click on the ASN for full IP address information, whois details and more. You can also view our hosting report to see the networks ranked by how many domain names they host.

ASN Name Num IPs
AS1213 HEAnet 1,843,456
AS5466 Eircom Limited 1,111,296
AS15502 Vodafone Ireland Limited 463,872
AS25441 Imagine Communications Group Limited 419,840
AS13280 Three Ireland (Hutchison) limited 159,744
AS8918 Coolwave Communications Limited 155,648
AS31122 Digiweb ltd 153,856
AS34245 Magnet Networks Limited 122,880
AS2850 University College Dublin 65,536
AS35226 Ripple Communications Ltd 40,960
AS15612 ServeCentric Ltd. 32,768
AS39122 Blacknight Internet Solutions Limited 27,392
AS34912 Vodafone Ireland Limited 25,856
AS15751 Meteor Mobile Communications Limited 24,832
AS29650 Sungard Availability Services (Ireland) Ltd. 23,808
AS16171 Fulnett Limited 23,552
AS43515 Google Ireland Limited 21,760
AS15806 Irish Government 20,480
AS207044 Enet Telecommunications Networks Limited 16,384
AS47720 CORK INTERNET EXCHANGE LIMITED 14,848
AS199256 Leeson Telecom Holdings Ltd 13,824
AS44212 Adelphi Net1 Ltd 13,312
AS29644 AIRSPEED COMMUNICATIONS UNLIMITED COMPANY 12,544
AS42090 Rapid Broadband Ltd 12,288
AS30900 Sternforth Ltd. 11,520
AS43406 Lighthouse Networks Limited 11,520
AS39093 Western Broadband Networks Limited 11,264
AS42227 Airwire Ltd 10,240
AS47680 EOBO Ltd T/A BBnet 10,240
AS49567 Aptus Ltd 9,216
AS48142 Permanet Limited 9,216
AS43006 Digital Realty (UK) Limited 8,704
AS43984 3playplus Ltd. 8,448
AS44451 SKYTEL NETWORKS IRELAND LIMITED 8,192
AS12388 Casey CableVision Ltd. 8,192
AS57052 Bioware Ireland Ltd 8,192
AS49406 Fast Wireless Internet Ltd 8,192
AS29636 catalyst2 Services Limited 8,192
AS39449 Fastcom Broadband Limited 7,168
AS57791 Arden Broadband Ltd 7,168
AS61194 Business Recovery Services Limited 6,400
AS62455 Wifiber Limited 6,400
AS24675 Irish Government 6,400
AS41736 Nova Networks Ltd 6,144
AS58173 Nucleus VP Group Limited 6,144
AS44786 Adobe Systems Software Ireland Ltd 5,888
AS44384 Crossan CableComm Ltd 5,120
AS47942 Regional Telecom Ltd 5,120
AS201000 Js Whizzy Internet Limited 4,608
AS43192 Ajisko Ltd t/a Integrated Media Solutions 4,608
AS62129 Wireless Connect Ltd. 4,608
AS41265 Digital River Ireland Ltd. 4,352
AS206723 Carnsore Broadband Limited 4,352
AS15405 East Cork Broadband Limited 4,352
AS60110 Model Telecom Ltd 4,352
AS6812 EMC Information Systems International 4,352
AS197853 ITS Irish Telecom Services Ltd 4,096
AS49766 Bitbuzz Ltd 4,096
AS34110 Vu2Vu Ireland Limited 4,096
AS50326 INTERNET PROTOCOL TELECOM LTD 3,584
AS51173 Premier Data Networks LTD 3,328
AS1197 Network Ability Limited 3,328
AS51677 HIBERNIA SERVICES LIMITED 3,328
AS200562 Welltel (Ireland) Ltd 3,072
AS39915 Premiere Conferencing Ireland Ltd 3,072
AS49221 Atlantek Computers Teoranta Ltd 3,072
AS39730 Eircom (UK) Ltd 3,072
AS60277 TELCOM LIMITED 3,072
AS56767 Airfibre Limited 3,072
AS196737 Airwave Internet 3,072
AS41073 Raidio Teilifis Eireann 3,072
AS50032 Adobe Systems Software Ireland Ltd 2,560
AS199346 Kerry Broadband Ltd 2,560
AS50883 Ninetreehill Broadband Ltd 2,304
AS51865 DIDWW Ireland Limited 2,048
AS39319 QuestZones (Europe) Limited 2,048
AS43610 ErgoServices Ltd 2,048
AS42310 IE Domain Registry Ltd 2,048
AS199373 E-Search DAC 2,048
AS197953 VMware International Ltd. 2,048
AS61145 Real Broadband Ltd 2,048
AS47417 Celtrak Ltd 2,048
AS206663 MTS Media Ltd 1,792
AS2128 Internet Neutral Exchange Association Company Limited By Guarantee 1,792
AS43074 Klas Ltd 1,792
AS200005 Asavie Technologies Limited 1,792
AS205157 Daniel Cid 1,536
AS39485 Northwest Broadband Connect Ltd. 1,536
AS198301 Workday Limited 1,536
AS31733 RYANAIR LIMITED 1,536
AS197957 Ker Broadband Communications Ltd 1,536
AS47931 Agora Publishing Services (Ireland) Limited 1,280
AS200565 Ivertec Ltd 1,280
AS47490 TuxBox 1,280
AS47870 SYNCHRONOSS SOFTWARE IRELAND, LTD 1,280
AS200824 Susquehanna International Group Ltd 1,280
AS200946 EMC Information Systems International 1,280
AS60423 Nordeus Limited 1,280
AS39233 Blue Face Ltd. 1,280
AS205743 Munster Wireless Ltd. 1,024
AS205751 Telecom Pobail Teoranta 1,024
AS204536 TSFY Ltd 1,024
AS204458 Total Wireless Ltd 1,024
AS203754 Phone Pulse Ltd 1,024
AS56638 j2 Global Ireland Limited 1,024
AS203109 Intellicom Ireland Ltd 1,024
AS201607 Celtic Broadband Limited 1,024
AS60155 Orion Digital Services Ltd. 1,024
AS209975 Edward Campbell trading as INCA 1,024
AS200948 Rolbay UC 1,024
AS200947 Royal Dublin Society 1,024
AS200807 Sleepless Server Solutions Ltd. 1,024
AS60214 Maints Limited 1,024
AS48970 Natus Manufacturing Limited 1,024
AS200174 Premier Broadband Limited 1,024
AS200046 Smyths Audio and Video Systems Ltd. 1,024
AS199588 Digital Hub Development Agency 1,024
AS12372 Cubic Telecom Limited 1,024
AS44196 Modeva Interactive 1,024
AS34815 Dublin Enterprise & Technology Centre Limited 1,024
AS43685 Mean Servers Limited 1,024
AS43829 Irish Domains Ltd 1,024
AS205437 Dawn Meats Group Unlimited Company 1,024
AS205494 Thomas John Bolger 1,024
AS203060 Cimpress Ireland Limited 768
AS209924 MLB Limited 768
AS34218 Three Ireland (Hutchison) limited 768
AS60499 Opt1mize Technologies Limited 768
AS200500 Vesta Payment Solutions Limited 768
AS206746 SCC BROADBAND LIMITED 768
AS42874 Gilead Sciences, Inc. 512
AS42326 HERTZ EUROPE SERVICE CENTRE LIMITED 512
AS201111 Planet Payment Group Holdings Limited 512
AS61314 Central Bank of Ireland 512
AS42213 Mallinckrodt Pharmaceuticals Ireland Ltd 512
AS209285 Electricity Supply Board 512
AS205189 BANK OF IRELAND GROUP PUBLIC LIMITED COMPANY 512
AS60229 Demonware Limited 512
AS200451 Workday Limited 512
AS51516 Fexco Unlimited Company 512
AS41238 DAA PLC 512
AS62017 Commercegate Ireland LTD 512
AS203262 Innovate Business Technology Ltd 512
AS202148 Boylesports Limited 512
AS202745 LinkedIn Austria GmbH 512
AS202823 Office IT Ltd. 512
AS42953 Internet Neutral Exchange Association Company Limited By Guarantee 512
AS56778 Pure Telecom Ltd 256
AS198260 Afilias Ltd 256
AS198812 Whitelake Communications Limited 256
AS199027 j2 Global Ireland Ltd 256
AS199336 VMware International Ltd. 256
AS200363 Blacknight Internet Solutions Limited 256
AS200677 Guidewire Software (Ireland) Limited 256
AS201033 SBTech (Global) Limited 256
AS201255 BS&B Safety Systems Limited 256
AS202681 PriceRunner International AB 256
AS204994 Tiernan OToole 256
AS205587 Sternforth Ltd. 256
AS206051 ARAMARK N.V 256
AS206309 Regeneron Ireland 256
AS206457 Electronic Arts Limited 256
AS206695 AIRBNB IRELAND ULC 256
AS206726 Financial Insurance Group Services Limited 256
AS208116 Athora Ireland Services Limited 256
AS209312 Compass Education Holdings Limited 256
AS209506 Stephen Cushen 256
AS209540 Expedia.com Ltd. 256
AS213231 CELKO LIMITED 256
AS24622 BT Communications Ireland Limited 256
AS24784 Payzone Group Limited 256
AS28867 ATOS IT SOLUTIONS AND SERVICES LIMITED 256
AS31411 Irish Continental Group Plc. 256
AS35262 4L Communications Ltd 256
AS39157 Western Union International Limited 256
AS41214 EBS Limited 256
AS41680 DeCare Systems Ireland Ltd. 256
AS41973 VHI Healthcare 256
AS43178 Technolabs Networks Ltd. 256
AS44815 TSG INTERACTIVE SERVICES (IRELAND) LIMITED 256
AS47615 Fujitsu Services Ltd. 256
AS47941 Red Hat Ltd 256
AS48255 Abtran Limited. 256
AS48342 Deloitte And Touche Irl 256
AS48406 Mentor Graphics (Ireland) Ltd. 256
AS59769 SMBC Aviation Capital Limited 256
AS62168 Broighter Networks Limited 256
AS39111 Amazon Data Services Ireland Ltd 0
AS35424 T.B.I. REFUNDS UNLIMITED COMPANY 0
AS35272 Imagine Communications Group Limited 0
AS35103 Wireless Connect Ltd. 0
AS34992 Premiere Conferencing Ireland Ltd 0
AS197450 Digiweb ltd 0
AS34575 Cork Neutral Internet Exchange 0
AS34505 Vistatec Limited 0
AS47580 Sungard Availability Services (Ireland) Ltd. 0
AS9055 Verizon Ireland Limited 0
AS34317 Imagine Communications Group Limited 0
AS34004 Thomson Reuters Ireland Limited 0
AS3286 BT Communications Ireland Limited 0
AS31698 WebHost.ie Limited 0
AS62431 National Cyber Security Centre 0
AS31458 Digiweb ltd 0
AS31135 Canada Life Group Services Limited 0
AS48150 Open Wi-Fi Ltd 0
AS15947 Cork Community Broadband Limited 0
AS13100 TELECITYGROUP INTERNATIONAL LIMITED 0
AS12293 Digiweb ltd 0
AS29406 Three Ireland (Hutchison) limited 0
AS49201 Carrierweb Ireland Limited 0
AS28744 TELECITYGROUP INTERNATIONAL LIMITED 0
AS213236 Marco Grossi 0
AS49416 Exchange West 0
AS2127 Fujitsu (Ireland) Limited 0
AS49634 Cork Neutral Internet Exchange 0
AS209503 John Slazenger 0
AS208256 Stingers Inc. 0
AS208114 Lorenzo Battilocchi 0
AS207904 INTERNET PROTOCOL TELECOM LTD 0
AS207127 Hostsure Limited 0
AS206514 Freemesh 0
AS206286 TELCOM LIMITED 0
AS204132 Shannon Airport Authority Designated Activity Company 0
AS203719 Dropbox International Unlimited Company 0
AS203381 Voip and Internet Services ltd 0
AS203218 Wireless Network Solutions Ltd 0
AS201918 VMotion IT Solutions LTD 0
AS56878 Orixcom Limited 0
AS56980 Syncreon Ireland 0
AS56985 Open Source Solutions Limited 0
AS201829 Vodafone Group Services GmbH 0
AS201614 International Investment and Underwriting Unlimited Company 0
AS57969 Hawk VPS LLC 0
AS201538 Irish Water 0
AS59569 Sleepless Server Solutions Ltd 0
AS8945 Twitter International Company 0
AS59915 Dell Products (Private Unlimited With Share Capital) 0
AS201331 Kiall Mac Innes 0
AS201310 Interlink Ireland Ltd 0
AS200499 Dropbox International Unlimited Company 0
AS200493 Vesta Payment Solutions Limited 0
AS199873 Ezetop 0
AS199200 Radio Two Thousand Limited 0
AS199017 Empathy Marketing Limited 0
AS60640 EQUINIX (SERVICES) LIMITED 0
AS60751 SERVEBYTE LTD 0
AS60888 Titania Networks Limited 0
AS198993 Workday Limited 0
AS198988 Wireless Connect Ltd. 0
AS198836 Smartbox Experience Limited 0
AS197904 Cab Call Communications Limited 0
AS41949 SSA Ltd 0
AS41883 Vodafone Ireland Limited 0
AS41607 PM 0
AS41602 Nicholas William Hilliard 0
AS43760 Internet Neutral Exchange Association Company Limited By Guarantee 0
AS43772 Irish Stock Exchange Limited 0
AS41208 Adobe Systems Software Ireland Ltd 0
AS39270 Digital River Ireland Ltd. 0

Details

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

This page shows ASNs for Ireland. See the global ASN report for network, IP address information and whois details for other countries.