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How Spain ranks worldwide on dormant space, the transfer market, routing security and address density.
APNIC-measured end-user deployment.
Paper holder: holds 372.5M /48 blocks but only 9.8% of users are IPv6-capable.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to Spain over time.
The largest autonomous systems registered to Spain by IPv4 footprint.
Spain 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.
1,164 autonomous systems registered to Spain. Click an AS for detail.
| AS15704ES | AS15704 XTRA TELECOM S.A. | 960.8K | 368 |
| AS12338ES | EUSKALTEL Euskaltel S.A. | 658.2K | 118 |
| AS29119ES | SERVIHOSTING-AS AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL | 631.6K | 412 |
| AS12334ES | R Cable y Telecable Telecomunicaciones, S.A.U. | 443.4K | 37 |
| AS200845ES | AVATEL-AS AVATEL TELECOM, SA | 355.1K | 463 |
| 2M |
| 4.2M |
| 69 |
| AS766ES | RedIRIS Entidad Publica Empresarial Red.es | 1.4M | 65.5K | 33 |
| AS15704ES | AS15704 XTRA TELECOM S.A. | 960.8K | 688.1K | 368 |
| AS12338ES | EUSKALTEL Euskaltel S.A. | 658.2K | 527.4K | 118 |
| AS29119ES | SERVIHOSTING-AS AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL | 631.6K | 2.7M | 412 |
| AS12334ES | R Cable y Telecable Telecomunicaciones, S.A.U. | 443.4K | 2K | 37 |
| AS200845ES | AVATEL-AS AVATEL TELECOM, SA | 355.1K | 262.1K | 463 |
| AS57269ES | DIGI-ES DIGI SPAIN TELECOM S.A | 354.8K | 524.3K | 14 |
| AS13041ES | CESCA-AC Consorci de Serveis Universitaris de Catalunya | 311.8K | 65.5K | 10 |
| AS12946ES | TeleCable R Cable y Telecable Telecomunicaciones, S.A.U. | 230.4K | 770 | 13 |
| AS8903ES | AS8903 LYNTIA NETWORKS S.A. | 197.6K | 720.9K | 117 |
| AS16371ES | acens_AS acens Technologies, S.L. | 184.3K | 65.5K | 117 |
| AS2134ES | GSVNET-AS Santander Global Technology and Operations, S.L. | 145.7K | — | 132 |
| AS35699ES | ADAMOEU-AS Adamo Telecom Iberia S.A. | 138.5K | 852K | 117 |
| AS34977ES | PROCONO-AS PROCONO S.A. | 138K | 2 | 164 |
| AS16153ES | SCS-AS Servei Catala de la Salut | 131.1K | — | 3 |
| AS12956ES | TELXIUS TELEFONICA GLOBAL SOLUTIONS SL | 101.6K | 196.6K | 31 |
| AS3262ES | SARENET SAREnet, S.A. | 78.1K | 65.5K | 21 |
| AS34511ES | F-INTEGRA-AS Fundacion Integra | 70.7K | 4.1K | 7 |
| AS198096ES | CICA Junta de Andalucia | 67.6K | 65.5K | 3 |
| AS44593ES | REDCAYLE Fundacion Centro de Supercomputacion de Castilla y Leon | 66.6K | 65.5K | 3 |
| AS15488ES | UPV-EHU Universidad del Pais Vasco - Euskal Herriko Unibertsitatea | 65.5K | — | 1 |
| AS198878ES | UNAV Universidad de Navarra | 65.5K | — | 1 |
| AS39069ES | CARM Comunidad Autonoma de la Region de Murcia | 65.5K | — | 1 |
| AS39155ES | JETNET JETNET WIMAX S.A | 50.2K | — | 88 |
| AS34471ES | EXCOM-AS Free Technologies Excom S.L. | 45.8K | 3.3M | 98 |
| AS201942ES | SOLTIA Soltia Consulting SL | 42K | 65.5K | 63 |
| AS21193ES | XARXA-AS Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya | 41.2K | — | 23 |
| AS41368ES | TVALMANSA-ASN Spotting Brands Technologies S.L. | 40.2K | — | 69 |
| AS57910ES | SCIP-AS Soluciones Corporativas IP, SL | 36.9K | 327.7K | 119 |
| AS50926ES | AXARNET-AS AXARNET COMUNICACIONES, S.L. | 34.3K | 65.6K | 40 |
| AS39551ES | GENCAT-AS Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya | 33K | — | 76 |
| AS35394ES | CABLEAIREWORLD-AS Cable Aireworld S.A.U. | 32.3K | 1.6M | 41 |
| AS42947ES | SKYNETLINK-AS Telfy Telecom S.L. | 32.3K | 65.6K | 89 |
| AS198760ES | QUATTRE-AS Quattre Internet SL | 31.7K | — | 68 |
| AS201746ES | OLIVENET-AS Olivenet Network S.L. | 30K | — | 59 |
| AS15699ES | AS_ADAM Adam EcoTech, S.A | 28.9K | 720.9K | 25 |
| AS60203ES | INNOVASUR-AS Innovaciones Tecnlogicas del Sur S.L. | 25.9K | — | 33 |
| AS200773ES | FUENTEALBILLA-AS INFORMATICA FUENTEALBILLA S.L. | 25.6K | 65.5K | 43 |
| AS57970ES | OLECOMUNICACION OLE COMUNICACION S.L. | 25.3K | — | 40 |
| AS49635ES | CLOUDING CLOUDI NEXTGEN SL | 25.1K | — | 97 |
| AS12321ES | ES-IBERCOMTELECOM-BACKBONE XTRA TELECOM S.A. | 24.6K | — | 3 |
| AS15919ES | INTERHOST Servicios de Hosting en Internet S.A. | 24.6K | 65.5K | 7 |
| AS50563ES | ONLYCABLE-AS Onlycable Comunicaciones S.L. | 24.3K | — | 52 |
| AS201735ES | PROPHASE-AS PROPHASE ELECTRONICS, S.L. | 22.8K | — | 25 |
| AS56882ES | NET-LEAST-COST-ROUTING-TELECOM-SL AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL | 22.8K | — | 30 |
| AS9165ES | PROSODIEIBERICA-AS PROSODIE IBERICA SL | 22.5K | — | 5 |