A list of all Ireland ASNs including hosting providers, ISPs, and businesses with announced IPv4 and IPv6 prefixes.
| ASN | Type | IPv4 Routes | IPv6 Routes | Company |
|---|---|---|---|---|
| AS15612 | Hosting Provider | 2 | 0 | ServeCentric Ltd. |
| AS16282 | Other Business | 2 | 0 | Allied Irish Banks PLC |
| AS197957 | Other Business | 2 | 0 | Ker Broadband Communications Ltd |
| AS199559 | Other Business | 2 | 0 | Bloomberg Data Management Services Limited |
| AS199873 | Other Business | 2 | 0 | Ezetop Unlimited Company ULC |
| AS200046 | Other Business | 2 | 0 | Smyths Audio and Video Systems Ltd. |
| AS200824 | Other Business | 2 | 0 | Susquehanna International Group Ltd |
| AS202148 | ISP & Mobile | 2 | 0 | BoyleSports 2 Unlimited Company |
| AS202823 | Other Business | 2 | 0 | Office IT Ltd. |
| AS203366 | Other Business | 2 | 0 | BMC Software Ireland Limited |
| AS204536 | Other Business | 2 | 0 | TSFY Ltd |
| AS204597 | Other Business | 2 | 0 | Wayfair Stores Ltd |
| AS205189 | Other Business | 2 | 0 | BANK OF IRELAND GROUP PUBLIC LIMITED COMPANY |
| AS205743 | ISP & Mobile | 2 | 0 | Munster Wireless Ltd. |
| AS212353 | Other Business | 2 | 0 | Crelativity Limited |
| AS213231 | Other Business | 2 | 0 | CELKO LIMITED |
| AS215440 | Other Business | 2 | 0 | Cellusys Limited |
| AS34778 | Other Business | 2 | 0 | Siemens Industry Software Limited |
| AS43984 | Hosting Provider | 2 | 0 | Conscia Technologies LIMITED |
| AS47942 | ISP & Mobile | 2 | 0 | Regional Telecom Ltd |
| AS49221 | ISP & Mobile | 2 | 0 | Atlantek Computers Teoranta Ltd |
| AS50883 | ISP & Mobile | 2 | 0 | Ninetreehill Broadband Ltd |
| AS60229 | Other Business | 2 | 0 | Demonware Limited |
| AS61145 | Other Business | 2 | 0 | Real Broadband Ltd |
| AS61314 | Government | 2 | 0 | Central Bank of Ireland |
| AS62017 | Other Business | 2 | 0 | Commercegate Ireland LTD |
| AS214973 | Other Business | 1 | 3 | Apex Strata Ltd |
| AS198046 | Other Business | 1 | 1 | DIDWW Ireland Limited |
| AS198260 | Other Business | 1 | 1 | Identity Digital Limited |
| AS199170 | Other Business | 1 | 1 | DIDWW Ireland Limited |
| AS199588 | Other Business | 1 | 1 | Digital Hub Development Agency |
| AS201783 | Other Business | 1 | 1 | DIDWW Ireland Limited |
| AS205967 | Hosting Provider | 1 | 1 | Sleepless Server Solutions Ltd. |
| AS207319 | Other Business | 1 | 1 | DIDWW Ireland Limited |
| AS209312 | Other Business | 1 | 1 | Compass Education Holdings Limited |
| AS209506 | Other Business | 1 | 1 | Stephen Cushen |
| AS210045 | Other Business | 1 | 1 | Blackrock Clinic Unlimited Company |
| AS211054 | Other Business | 1 | 1 | Arista Networks Limited |
| AS211638 | Other Business | 1 | 1 | David Freyne |
| AS212893 | Other Business | 1 | 1 | DIDWW Ireland Limited |
| AS214609 | Other Business | 1 | 1 | Google Cloud EMEA Ltd |
| AS214611 | Other Business | 1 | 1 | Google Cloud EMEA Ltd |
| AS216141 | ISP & Mobile | 1 | 1 | LEATYON LIMITED |
| AS39319 | ISP & Mobile | 1 | 1 | QuestZones (Europe) Limited |
| AS47443 | ISP & Mobile | 1 | 1 | Magnet Networks Limited |
| AS62168 | ISP & Mobile | 1 | 1 | Broighter Networks Limited |
| AS12388 | ISP & Mobile | 1 | 0 | Virgin Media Ireland Limited |
| AS198812 | Other Business | 1 | 0 | Whitelake Communications Limited |
| AS200451 | Other Business | 1 | 0 | Workday Limited |
| AS200947 | Other Business | 1 | 0 | Royal Dublin Society |
| AS201607 | ISP & Mobile | 1 | 0 | Celtic Broadband Limited |
| AS202899 | Other Business | 1 | 0 | Guidewire Software (Ireland) Limited |
| AS203754 | Other Business | 1 | 0 | Phone Pulse Ltd |
| AS204458 | ISP & Mobile | 1 | 0 | Hispeed Wireless Broadband Ltd |
| AS204990 | Hosting Provider | 1 | 0 | Dirk Webbeler Enterprises Limited trading as Blue Technologies Ltd. & Co. KG |
| AS205437 | Other Business | 1 | 0 | Dawn Meats Group Unlimited Company |
| AS205481 | ISP & Mobile | 1 | 0 | Clare Wifi Networks Limited |
| AS206309 | Other Business | 1 | 0 | REGENERON IRELAND DESIGNATED ACTIVITY COMPANY |
| AS206577 | Other Business | 1 | 0 | Cellusys IoT Limited |
| AS207382 | Other Business | 1 | 0 | JEREMIAH KEANE |
| AS208116 | Other Business | 1 | 0 | Athora Ireland Services Limited |
| AS208737 | Other Business | 1 | 0 | MYPOS LIMITED |
| AS210568 | Other Business | 1 | 0 | Athora Ireland Services Limited |
| AS210723 | Other Business | 1 | 0 | AVA TRADE IRELAND LIMITED |
| AS211771 | Other Business | 1 | 0 | AVIA SOLUTIONS GROUP (ASG) PLC |
| AS212493 | ISP & Mobile | 1 | 0 | ClearWave LTD |
| AS213463 | Other Business | 1 | 0 | DP World Logistics Ireland ULC |
| AS213849 | Other Business | 1 | 0 | UPMC GLOBAL OPERATIONS CENTER LIMITED |
| AS215045 | Other Business | 1 | 0 | UPMC GLOBAL OPERATIONS CENTER LIMITED |
| AS216153 | ISP & Mobile | 1 | 0 | NBI INFRASTRUCTURE DESIGNATED ACTIVITY COMPANY |
| AS24622 | ISP & Mobile | 1 | 0 | Enet Communications LIMITED |
| AS24784 | Other Business | 1 | 0 | Payzone Group Unlimited Company |
| AS2850 | Education | 1 | 0 | University College Dublin |
| AS31411 | Other Business | 1 | 0 | Irish Continental Group Plc. |
| AS35262 | ISP & Mobile | 1 | 0 | 4L Communications Ltd |
| AS35424 | Other Business | 1 | 0 | FINTUA LIMITED |
| AS39157 | Other Business | 1 | 0 | Western Union International Limited |
| AS41214 | Other Business | 1 | 0 | EBS Limited |
| AS41238 | Other Business | 1 | 0 | DAA PLC |
| AS41602 | Other Business | 1 | 0 | Nicholas William Hilliard |
| AS41680 | Other Business | 1 | 0 | 8 WEST REVOLUTION TECHNOLOGIES LIMITED |
| AS41973 | Other Business | 1 | 0 | Vhi Healthcare DAC |
| AS42213 | Other Business | 1 | 0 | Mallinckrodt Pharmaceuticals Ireland Ltd |
| AS44815 | Other Business | 1 | 0 | TSG INTERACTIVE SERVICES (IRELAND) LIMITED |
| AS47115 | Other Business | 1 | 0 | HARVEY SOFTWARE SYSTEMS LTD |
| AS47680 | ISP & Mobile | 1 | 0 | EOBO Ltd T/A BBnet |
| AS47941 | Other Business | 1 | 0 | Red Hat Ltd |
| AS48255 | Other Business | 1 | 0 | Abtran Limited. |
| AS48342 | Other Business | 1 | 0 | Deloitte & Touche |
| AS48406 | Other Business | 1 | 0 | Siemens Industry Software Limited |
| AS49406 | ISP & Mobile | 1 | 0 | Fast Wireless Internet Ltd |
| AS51516 | Other Business | 1 | 0 | Fexco Unlimited Company |
| AS60110 | ISP & Mobile | 1 | 0 | Model Telecom Ltd |
| AS60155 | ISP & Mobile | 1 | 0 | Orion Digital Services Ltd. |
| AS9055 | ISP & Mobile | 1 | 0 | Verizon Ireland Limited |
| AS208768 | Other Business | 0 | 6 | Constantine Evans |
| AS213368 | Other Business | 0 | 5 | Marco Ciotola |
| AS206290 | Other Business | 0 | 4 | Graham Hayes |
| AS204882 | Other Business | 0 | 3 | DENIS NOLAN |
| AS205088 | Other Business | 0 | 3 | XIAOKANG WANG |