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How Ireland ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to Ireland over time.
The largest autonomous systems registered to Ireland by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS1213IE | Asiera ASIERA TECHNOLOGY SERVICES CLG | 1.8M | 18 |
| AS15502IE | Vodafone-Ireland-ASN Vodafone Ireland Limited | 1.4M | 218 |
| AS5466IE | EIRCOM Eircom Limited | 1.1M | 28 |
| AS43515IE | YOUTUBE Google Ireland Limited | 463.9K | 109 |
| AS2110IE | AS-BTIRE Enet Communications LIMITED | 246.5K | 18 |
| AS13280IE | H3GIE Three Ireland (Hutchison) limited | 241.7K | 70 |
| AS31122IE | DIGIWEB-AS Digiweb ltd | 201.5K | 51 |
| AS34245IE | MAGNET-AS Magnet Networks Limited | 106K | 20 |
| AS25441IE | IBIS-AS Imagine Communications Group Limited | 77.6K | 12 |
| AS2850IE | University-College-Dublin University College Dublin | 65.5K | 1 |
Ireland against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
291 autonomous systems registered to Ireland. Click an AS for detail.
| AS | Holder | IPv4 ↓ | IPv6 /48 | Prefixes |
|---|---|---|---|---|
| AS31411IE | ORG-ICGP1-RIPE-AS Irish Continental Group Plc. | 256 | — | 1 |
| AS209312IE | COMPASS-AS Compass Education Holdings Limited | 256 | 1 | 2 |
| AS198812IE | WHITELAKE Whitelake Communications Limited | 256 | — | 1 |
| AS9055IE | Verizon Ireland Limited | 256 | — | 1 |
| AS214973IE | axst-io Apex Strata Ltd | 256 | 3 | 4 |
| AS210568IE | ATHORA-DE Athora Ireland Services Limited | 256 | — | 1 |
| AS200451IE | WD-DUBIT Workday Limited | 256 | — | 1 |
| AS218367IE | grafanalabs Grafana Labs Ireland Limited | 256 | — | 1 |
| AS35424IE | IE-TAXBACK-20190219 FINTUA LIMITED | 256 | — | 1 |
| AS199170IE | DIDWW-MI-AS DIDWW Ireland Limited | 256 | 1 | 2 |
| AS41238IE | DAA-AS-1 DAA PLC | 256 | — | 1 |
| AS48406IE | SIEMENS-INDUSTRY-SOFTWARE-ARMENIA Siemens Industry Software Limited | 256 | — | 1 |
| AS201783IE | DIDWW-HK-AS DIDWW Ireland Limited | 256 | 1 | 2 |
| AS41680IE | DSI-CORK-AS 8 WEST REVOLUTION TECHNOLOGIES LIMITED | 256 | — | 1 |
| AS198046IE | DIDWW-AMS-AS DIDWW Ireland Limited | 256 | 1 | 2 |
| AS41602IE | NH7-AS Nicholas William Hilliard | 256 | — | 1 |
| AS39157IE | WESTERNUNION-DUB-IE Western Union International Limited | 256 | — | 1 |
| AS210812IE | CHRIS-PRITCHARD Christopher Pritchard | 256 | 257 | 3 |
| AS47443IE | MAGNET-NEWORKS-UK Magnet Networks Limited | 256 | 65.5K | 2 |
| AS213463IE | DPWORLD DP World Logistics Ireland ULC | 256 | — | 1 |
| AS48255IE | Abtran-AS Abtran Limited. | 256 | — | 1 |
| AS41973IE | VHI-AS Vhi Healthcare DAC | 256 | — | 1 |
| AS212893IE | DIDWW-LA-AS DIDWW Ireland Limited | 256 | 1 | 2 |
| AS48342IE | Deloitte-And-Touche-Irl Deloitte & Touche | 256 | — | 1 |
| AS214055IE | COMREG Commission for Communications Regulation (ComReg) | 256 | — | 1 |
| AS216141IE | LEATYON-AS LEATYON LIMITED | 256 | 1 | 2 |
| AS47115IE | DEREK-CONNIFFE HARVEY SOFTWARE SYSTEMS LTD | 256 | — | 1 |
| AS212493IE | ClearWave ClearWave LTD | 256 | — | 1 |
| AS24622IE | BT-BOI Enet Communications LIMITED | 256 | — | 1 |
| AS35262IE | LLLL 4L Communications Ltd | 256 | — | 1 |
| AS211638IE | DNW-AS David Freyne | 256 | 1 | 2 |
| AS211771IE | ASG AVIA SOLUTIONS GROUP (ASG) PLC | 256 | — | 1 |
| AS208768IE | ConstV6 Constantine Evans | 256 | 13 | 7 |
| AS24784IE | ALPHYRA Payzone Group Unlimited Company | 256 | — | 1 |
| AS215045IE | upmc-hrvzcc UPMC GLOBAL OPERATIONS CENTER LIMITED | 256 | — | 1 |
| AS219458IE | FARCALLER-NET Volodymyr Puzanov | 256 | 7 | 7 |
| AS44815IE | POCKETKINGS-AS TSG INTERACTIVE SERVICES (IRELAND) LIMITED | 256 | — | 1 |
| AS62168IE | BROIGHTER Broighter Networks Limited | 256 | 256 | 2 |
| AS206577IE | ZARIOT Cellusys IoT Limited | 256 | — | 1 |
| AS47941IE | REDHAT Red Hat Ltd | 256 | — | 1 |
| AS206309IE | Regeneron-AS REGENERON IRELAND DESIGNATED ACTIVITY COMPANY | 256 | — | 1 |
| AS216153IE | AS_NBI_IRE NBI INFRASTRUCTURE DESIGNATED ACTIVITY COMPANY | 256 | — | 1 |
| AS211054IE | ARISTA-EU Arista Networks Limited | 256 | 1 | 2 |
| AS208116IE | ATHORA-IE Athora Ireland Services Limited | 256 | — | 1 |
| AS209506IE | CushNet Stephen Cushen | 256 | 1 | 2 |
| AS202899IE | GW-POL Guidewire Software (Ireland) Limited | 256 | — | 1 |
| AS198260IE | AFILIAS-AMS2 Identity Digital Limited | 256 | 1 | 2 |
| AS41214IE | EBS EBS Limited | 256 | — | 1 |
| AS205437IE | dawnmeats Dawn Meats Group Unlimited Company | 256 | — | 1 |
| AS205088IE | ShellNet XIAOKANG WANG | — | 3 | 3 |