| 48255 | Abtran-AS Abtran Limited. |
| 44212 | ADELPHINET1-AS Adelphi Net1 Ltd |
| 44786 | ADOBE-IRELAND-AS Adobe Systems Software Ireland Ltd |
| 39111 | ADSI-AS Amazon Data Services Ireland Ltd |
| 206695 | ADU3 AIRBNB IRELAND ULC |
| 198260 | AFILIAS-AMS2 Identity Digital Limited |
| 207266 | AFiLIAS-SECONDARY-DNS Identity Digital Limited |
| 16282 | AIB-AS-1 Allied Irish Banks PLC |
| 206132 | AIL-EDC-AS ABBOTT RAPID DX INTERNATIONAL LIMITED |
| 29644 | AIRSPEED-AS AIRSPEED COMMUNICATIONS LIMITED |
| 196737 | AIRWAVE Airwave Internet |
| 211232 | AIRWAVE2 Lackabeha Services Ltd. |
| 42227 | AIRWIRE-AS Airwire Ltd |
| 24784 | ALPHYRA Payzone Group Unlimited Company |
| 47931 | APSI-ASN1 Agora Publishing Services (Ireland) Limited |
| 211200 | Aptriva Aptriva Ltd |
| 49567 | APTUS-AS Aptus Ltd |
| 57791 | ARDEN-AS Arden Broadband Ltd |
| 211054 | ARISTA-EU Arista Networks Limited |
| 2110 | AS-BTIRE Enet Communications LIMITED |
| 201310 | AS_DPD Interlink Ireland Ltd |
| 201111 | AS_FINTRAX Planet Payment Group Holdings Limited |
| 216153 | AS_NBI_IRE NBI INFRASTRUCTURE DESIGNATED ACTIVITY COMPANY |
| 211771 | ASG AVIA SOLUTIONS GROUP (ASG) PLC |
| 211535 | asilkari Ilkari Ireland Company Limited |
| 44196 | ASN-AS44196 Edward Campbell |
| 60888 | ASN-TITANIA Titania Networks Limited |
| 203754 | asphonepulse Phone Pulse Ltd |
| 213483 | ASTRIVE-AS ASTRIVE X LTD |
| 210568 | ATHORA-DE Athora Ireland Services Limited |
| 208116 | ATHORA-IE Athora Ireland Services Limited |
| 49221 | atlantek Atlantek Computers Teoranta Ltd |
| 28867 | Atos-IT-Solutions-and-Services-Ireland-AS ATOS IT SOLUTIONS AND SERVICES LIMITED |
| 210723 | AvatradeNet AVA TRADE IRELAND LIMITED |
| 9059 | AWS-EU-AS Amazon Data Services Ireland Ltd |
| 8987 | AWS-GOVCLOUD Amazon Data Services Ireland Ltd |
| 214973 | axst-io Apex Strata Ltd |
| 210045 | BC-AS Blackrock Clinic Unlimited Company |
| 47446 | BCG-AS Barclays Bank lreland PLC |
| 213991 | BCG2-AS Barclays Bank lreland PLC |
| 57052 | BIOWAREONLINEEU1 ELECTRONIC ARTS IRELAND LIMITED |
| 49766 | BITBUZZ-AS Virgin Media Ireland Limited |
| 200363 | BK-AS Blacknight Internet Solutions Limited |
| 215733 | BKBB Blacknight Internet Solutions Limited |
| 39122 | BLACKNIGHT-AS Blacknight Internet Solutions Limited |
| 204990 | bluecloud Dirk Webbeler Enterprises Limited trading as Blue Technologies Ltd. & Co. KG |
| 203366 | bmcsaas-ams BMC Software Ireland Limited |
| 211469 | bmcsaas-zwl BMC Software Ireland Limited |
| 205189 | BOIGROUP BANK OF IRELAND GROUP PUBLIC LIMITED COMPANY |
| 202148 | BOYLESPORTS-AS BoyleSports 2 Unlimited Company |
| 51046 | BRINGOIE Bringo Limited |
| 62168 | BROIGHTER Broighter Networks Limited |
| 201255 | BSB-AS BS&B Safety Systems Limited |
| 24622 | BT-BOI Enet Communications LIMITED |
| 12388 | Cablesurf Virgin Media Ireland Limited |
| 206723 | CARNSOREBROADBAND Carnsore Broadband Limited |
| 8918 | CARRIER1-AS Coolwave Communications Limited |
| 61314 | CBoI-AS Central Bank of Ireland |
| 213231 | celko CELKO LIMITED |
| 215440 | CELLUSYS Cellusys Limited |
| 201607 | CELTIC-AS Celtic Broadband Limited |
| 47417 | CELTRAK-AS Trane Technologies International Limited |
| 62017 | CGATE-AS Commercegate Ireland LTD |
| 203060 | cimpress Cimpress Ireland Limited |
| 47720 | CIX-AS CORK INTERNET EXCHANGE LIMITED |
| 205481 | clarewifi Clare Wifi Networks Limited |
| 212493 | ClearWave ClearWave LTD |
| 216133 | cloudcn Cloud Communication & Networks LTD |
| 41883 | CNT-AS Vodafone Ireland Limited |
| 209312 | COMPASS-AS Compass Education Holdings Limited |
| 208768 | ConstV6 Constantine Evans |
| 44384 | crossan Crossan CableComm Ltd |
| 61194 | CTIGLOBAL-IE EKCO CLOUD IRELAND LIMITED |
| 12372 | Cubic-Telecom Cubic Telecom Limited |
| 209506 | CushNet Stephen Cushen |
| 41238 | DAA-AS-1 DAA PLC |
| 205437 | dawnmeats Dawn Meats Group Unlimited Company |
| 59915 | DELL-SOFTWARE-BLK Dell Products (Private Unlimited With Share Capital) |
| 48342 | Deloitte-And-Touche-Irl Deloitte & Touche |
| 60229 | DEMONWARE Demonware Limited |
| 47115 | DEREK-CONNIFFE HARVEY SOFTWARE SYSTEMS LTD |
| 211024 | devplayer0 Jack O'Sullivan |
| 199588 | DHDA Digital Hub Development Agency |
| 198046 | DIDWW-AMS-AS DIDWW Ireland Limited |
| 51865 | DIDWW-AS DIDWW Ireland Limited |
| 201783 | DIDWW-HK-AS DIDWW Ireland Limited |
| 212893 | DIDWW-LA-AS DIDWW Ireland Limited |
| 199170 | DIDWW-MI-AS DIDWW Ireland Limited |
| 207319 | DIDWW-SG-AS DIDWW Ireland Limited |
| 31122 | DIGIWEB-AS Digiweb ltd |
| 204882 | DNOLAN-AS DENIS NOLAN |
| 211638 | DNW-AS David Freyne |
| 213463 | DPWORLD DP World Logistics Ireland ULC |
| 41680 | DSI-CORK-AS 8 WEST REVOLUTION TECHNOLOGIES LIMITED |
| 207738 | EALTA Colm O Hici |
| 15405 | EASTCORK-AS East Cork Broadband Limited |
| 41214 | EBS EBS Limited |
| 205789 | eden-net Eden Uhde |
| 206704 | EDN1 AIRBNB IRELAND ULC |
| 5466 | EIRCOM Eircom Limited |
| 30864 | Elavon-Financial-Services-DAC_AS Elavon Financial Services DAC |
| 207044 | ENET-AS Enet Telecommunications Networks Limited |
| 213576 | ERTIUS-NET Robert Weir |
| 209285 | ESB Electricity Supply Board |
| 212353 | EUROSERVERS Crelativity Limited |
| 212312 | EXIGENT Exigent Network Integration Ltd |
| 49416 | EXWEST Exchange West |
| 199873 | EZETOP Ezetop Unlimited Company ULC |
| 39449 | FASTCOM-AS Fastcom Broadband Limited |
| 42342 | FDI-DUB-IE Fiserv Solutions (Europe) Limited |
| 51516 | Fexco Fexco Unlimited Company |
| 50088 | FITL-IE Fort Information Technologies Ltd |
| 206514 | FREEMESH-IE Freemesh |
| 49406 | FWI Fast Wireless Internet Ltd |
| 214611 | Gcloud Google Cloud EMEA Ltd |
| 206290 | GrahamHayes Graham Hayes |
| 202899 | GW-POL Guidewire Software (Ireland) Limited |
| 13280 | H3GIE Three Ireland (Hutchison) limited |
| 34218 | H3GIE Three Ireland (Hutchison) limited |
| 1213 | HEANET HEAnet CLG |
| 42326 | hertzire-as HERTZ EUROPE SERVICE CENTRE LIMITED |
| 51677 | HETG-AS Hibernia Services Limited |
| 56410 | HOST-IRELAND-AS Leeson Telecom Holdings Ltd |
| 25441 | IBIS-AS Imagine Communications Group Limited |
| 34815 | IE-GEC-AS Dublin Enterprise & Technology Centre Limited |
| 207127 | IE-HSL-01 Intergraph Process Power and Marine Ireland Limited |
| 200947 | IE-ROYALDUBLINSOCIETY-20141223 Royal Dublin Society |
| 35424 | IE-TAXBACK-20190219 FINTUA LIMITED |
| 42310 | IEDR IE Domain Registry CLG |
| 34912 | IFN-AS Vodafone Ireland Limited |
| 201614 | IIU-AS International Investment and Underwriting Unlimited Company |
| 43192 | imedia-AS Ajisko Ltd t/a Integrated Media Solutions |
| 206422 | in2tel-bt 8x8 Communications CX Solutions LIMITED |
| 199687 | in2tel-db3 8x8 Communications CX Solutions LIMITED |
| 209975 | INCA-AS Edward Campbell trading as INCA |
| 2128 | INEX Internet Neutral Exchange Association Company Limited By Guarantee |
| 42953 | INEX-CORK Internet Neutral Exchange Association Company Limited By Guarantee |
| 43760 | INEX-RS Internet Neutral Exchange Association Company Limited By Guarantee |
| 203262 | INNOVATEBT-AS Innovate Business Technology Ltd |
| 3286 | IOL Enet Communications LIMITED |
| 50326 | IPTELECOM-AS INTERNET PROTOCOL TELECOM LTD |
| 197853 | IrishTelcom Digiweb ltd |
| 200565 | IVERTEC Ivertec Ltd |
| 199027 | J2-GLOBAL-IRELAND j2 Global Ireland Ltd |
| 56638 | J2-IRE-AS j2 Global Ireland Limited |
| 205653 | Jumpshot NortonLifeLock Ireland Limited |
| 216302 | kaminot Kaminot Limited |
| 207662 | KatieChapman Benjamin Chapman |
| 199346 | KBB-AS Kerry Broadband Ltd |
| 197957 | KERBB Ker Broadband Communications Ltd |
| 209542 | KEVINGANNON kevin gannon |
| 213040 | KEYBUS-LTD Keybus Ltd |
| 24675 | LGCSB-AS Irish Government |
| 43406 | LIGHTHOUSE-AS Lighthouse Networks Limited |
| 200948 | Linesight-Public Rolbay ULC |
| 206824 | Linhua-Tang Linhua Tang |
| 213128 | LINK-Broadband-Ltd LINK Broadband Limited |
| 60499 | LINX Opt1mize Technologies Limited |
| 35262 | LLLL 4L Communications Ltd |
| 210680 | locotorpi Jurgita Jurgaitiene trading as LOCOTORPI |
| 211439 | locotorpi Jurgita Jurgaitiene trading as LOCOTORPI |
| 208114 | Lorenzo Lorenzo Battilocchi |
| 34245 | MAGNET-AS Magnet Networks Limited |
| 47443 | MAGNET-NEWORKS-UK Magnet Networks Limited |
| 60214 | MAINTS Maints Limited |
| 207885 | malissa Pui-Hin Vincent Lee |
| 213368 | MarcoBox Marco Ciotola |
| 213236 | MARCOGROSSI Marco Grossi |
| 15751 | METEORMOBILECOMMS-AS Meteor Mobile Communications Limited |
| 212925 | Miguel-Landaeta Miguel Landaeta |
| 209924 | MLBLTD-AS MLB Limited |
| 214355 | MMSOFT-ASN MMSOFT Design Limited |
| 60110 | ModelTelecom Model Telecom Ltd |
| 214747 | mongodb MongoDB Limited |
| 42213 | MPIL-AS-1 Mallinckrodt Pharmaceuticals Ireland Ltd |
| 135343 | MPL-AS-AP Magic Particle Limited |
| 206663 | MTS-MEDIA MTS Media Ltd |
| 205743 | munster Munster Wireless Ltd. |
| 48970 | NATUSIE Natus Manufacturing Limited |
| 62431 | NCSC-IE-AS National Cyber Security Centre |
| 1197 | NETWORKABILITY Network Ability Limited |
| 206998 | NEW-2 NEW RELIC INTERNATIONAL LIMITED |
| 41602 | NH7-AS Nicholas William Hilliard |
| 47680 | NHCS EOBO Ltd T/A BBnet |
| 48305 | NORAINA-EU Noraina Ltd |
| 39485 | NORTHWEST-AS Northwest Broadband Connect Ltd. |
| 41736 | NovaNetworks-AS Digiweb ltd |
| 50883 | NTHILL-AS Ninetreehill Broadband Ltd |
| 199373 | NW-AS E-Search DAC |
| 202823 | OFFICEIT Office IT Ltd. |
| 198528 | OGN-RU ORANGE BUSINESS COMMUNICATIONS TECHNOLOGY LIMITED |
| 199336 | OneCloud-DC Vmware International Unlimited Company |
| 2647 | ORANGE-BUSINESS-NAM ORANGE BUSINESS COMMUNICATIONS TECHNOLOGY LIMITED |
| 31411 | ORG-ICGP1-RIPE-AS Irish Continental Group Plc. |
| 15806 | ORG-IG30-RIPE Irish Government |
| 60155 | OrionDigtalServicesAS Orion Digital Services Ltd. |
| 60924 | ORIXCOM Orixcom Limited |
| 56878 | ORIXCOM-IE Orixcom Limited |
| 44348 | ORIXCOM-UK Orixcom Limited |
| 50813 | PAY-AND-SHOP-LIMITED-AS PAY AND SHOP LIMITED |
| 51173 | PBB Premier Data Networks LTD |
| 41607 | PMNet PROJECT MANAGEMENT LIMITED |
| 44815 | POCKETKINGS-AS TSG INTERACTIVE SERVICES (IRELAND) LIMITED |
| 199559 | Polarlake Bloomberg Data Management Services Limited |
| 39849 | PTX-AS U.S. Bank Europe DAC |
| 56778 | PURETELECOM-IE-NET Pure Telecom Ltd |
| 39319 | QZE QuestZones (Europe) Limited |
| 199200 | RADIOTWOTHOUSAND Bauer Audio Ireland Limited trading as Bauer Media Audio Ireland LP |
| 42090 | RAPIDBB Rapid Broadband Ltd |
| 61145 | Realbroadbandcom Real Broadband Ltd |
| 47941 | REDHAT Red Hat Ltd |
| 201286 | REDHAT Red Hat Ltd |
| 214609 | redtec-2 Google Cloud EMEA Ltd |
| 209539 | redtec-tc-1 Google Cloud EMEA Ltd |
| 209519 | redtec-tc-2 Google Cloud EMEA Ltd |
| 209504 | redtec-tc-3 Google Cloud EMEA Ltd |
| 47942 | REGB-AS Regional Telecom Ltd |
| 206309 | Regeneron-AS REGENERON IRELAND DESIGNATED ACTIVITY COMPANY |
| 35226 | Ripplecom-AS Digiweb ltd |
| 200946 | RSA-AS EMC Information Systems International PUC |
| 41073 | RTE Raidio Teilifis Eireann |
| 206746 | SCCBROADBAND-AS SCC BROADBAND LIMITED |
| 200186 | seith-it-htznr-dc1 SEITH IT CONSULTING LIMITED |
| 15612 | SERVECENTRIC ServeCentric Ltd. |
| 31128 | SHAZAM-AS APPLE DISTRIBUTION INTERNATIONAL LTD. |
| 205088 | ShellNet XIAOKANG WANG |
| 48406 | SIEMENS-INDUSTRY-SOFTWARE-ARMENIA Siemens Industry Software Limited |
| 34778 | SIEMENS-INDUSTRY-SOFTWARE-EGYPT Siemens Industry Software Limited |
| 43484 | Siemens-Industry-Software-Limited-Europe Siemens Industry Software Limited |
| 44451 | SKYTEL-AS Digiweb ltd |
| 200807 | sleepless-ie-as Sleepless Server Solutions Ltd. |
| 198836 | SMARTBOXEXPERIENCE Smartbox Experience Limited |
| 31458 | SmartTelecom-AS Digiweb ltd |
| 200046 | SmythCablevision Smyths Audio and Video Systems Ltd. |
| 47870 | SNCR-ASN SYNCHRONOSS SOFTWARE IRELAND, LTD |
| 16171 | STRENCOM Fulnett Limited |
| 200824 | SUSQ-IRE Susquehanna International Group Ltd |
| 35289 | Symantec-Corp NortonLifeLock Ireland Limited |
| 60277 | Telcom-01 Agility Communications Limited |
| 205494 | THOMASBOLGER-AS Thomas John Bolger |
| 43984 | THRPP-AS Conscia Technologies LIMITED |
| 205282 | tilda-ie-1 Tilda Publishing Ltd. |
| 214744 | tildapublishing-kz-1 Tilda Publishing Ltd. |
| 204458 | TotalWireless_AS Hispeed Wireless Broadband Ltd |
| 204536 | tsfy TSFY Ltd |
| 205967 | TTS-IE-AS Sleepless Server Solutions Ltd. |
| 47490 | TuxBox-AS TuxBox |
| 2850 | University-College-Dublin University College Dublin |
| 215045 | upmc-hrvzcc UPMC GLOBAL OPERATIONS CENTER LIMITED |
| 216414 | upmc-irl-dc UPMC GLOBAL OPERATIONS CENTER LIMITED |
| 213849 | upmc-irlssc UPMC GLOBAL OPERATIONS CENTER LIMITED |
| 199326 | VEIGLOBAL Voice Engineer Ireland Limited |
| 9055 | Verizon Ireland Limited |
| 200500 | Vesta-DUB Vesta Payment Solutions Limited |
| 41973 | VHI-AS Vhi Healthcare DAC |
| 29650 | VIATELAS-AS Digiweb ltd |
| 35068 | VIRTU-FINANCIAL Virtu Financial Ireland Limited |
| 201918 | VMOTION VMotion IT Solutions LTD |
| 207726 | VMW-AMS04 Vmware International Unlimited Company |
| 199323 | VMW-BCN01 Vmware International Unlimited Company |
| 203239 | VMW-BG Vmware International Unlimited Company |
| 211129 | VMW-CDG1 Vmware International Unlimited Company |
| 198553 | VMW-DXB01 Vmware International Unlimited Company |
| 198625 | VMW-EVN01 Vmware International Unlimited Company |
| 197953 | VMW-IE Vmware International Unlimited Company |
| 201428 | VMW-LHR01 Vmware International Unlimited Company |
| 209449 | VMW-LHR06 Vmware International Unlimited Company |
| 211086 | VMW-LIN02 Vmware International Unlimited Company |
| 199368 | VMW-MAD01 Vmware International Unlimited Company |
| 209676 | VMW-MUC2 Vmware International Unlimited Company |
| 197822 | VMW-ROM01 Vmware International Unlimited Company |
| 198555 | VMW-SVQ01 Vmware International Unlimited Company |
| 208539 | VMW-TLV01 Vmware International Unlimited Company |
| 15502 | Vodafone-Ireland-ASN Vodafone Ireland Limited |
| 203381 | VOIPANDIS Voip and Internet Services ltd |
| 6812 | VS-VGN-EMEA EMC Information Systems International PUC |
| 204597 | WAYFAIR Wayfair Stores Ltd |
| 62455 | WBB-AS Digiweb ltd |
| 198993 | WD-AMS Workday Limited |
| 200451 | WD-DUBIT Workday Limited |
| 30900 | WEBWORLD-AS Sternforth Ltd. trading as WebWorld |
| 205587 | WEBWORLD-BROADBAND-AS Sternforth Ltd. trading as WebWorld |
| 200562 | Welltel-IE Welltel (Ireland) Ltd |
| 39157 | WESTERNUNION-DUB-IE Western Union International Limited |
| 215477 | WESTERNUNION-FRA-DE Western Union International Limited |
| 39093 | WestNet-IE WESTNET BROADBAND MAYO LIMITED |
| 198812 | WHITELAKE Whitelake Communications Limited |
| 201000 | WHIZZY-FTTX Js Whizzy Internet Limited |
| 62129 | wirelessconnect16 Wireless Connect Ltd. |
| 198301 | WKD-AS Workday Limited |
| 212028 | WU-LT Western Union International Limited |
| 43515 | YOUTUBE Google Ireland Limited |
| 206577 | ZARIOT Cellusys IoT Limited |
| 61186 | ZENDESK-INTL Zendesk International Limited |
| 204210 | ZEUSPACKAGINGLTD Zeus Packaging Limited |
| 56767 | ZIRDAI-AS Zirdai Limited |