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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 |
| 768 |
| — |
| 3 |
| AS51621ES | infoself Infoself Sistemes SL | 768 | — | 3 |
| AS211320ES | BONAREAENERGIA Bonarea Energia SLU | 768 | — | 3 |
| AS215764ES | V4GUARD Ismael Munoz Hernandez | 768 | — | 3 |
| AS13186ES | ECE-BCN-DATA Evolutio Cloud Enabler SA | 768 | — | 3 |
| AS62055ES | SUVOZ SUVOZ GLOBAL SERVICES S.L. | 1K | — | 4 |
| AS209703ES | XPERIENTIA Experientia Systems, SL | 1K | — | 4 |
| AS200481ES | innubo SERVEIS INNUBO SL | 1K | — | 1 |
| AS215018ES | CORTEX CORTEX SP COMPUTER, S.L. | 1K | — | 3 |
| AS208248ES | SCS-AS Innovative Business Software Iberia S.L. | 1K | — | 4 |
| AS204234ES | TVA-ASN XFERA Moviles S.A. | 1K | — | 1 |
| AS198853ES | i2basque Fundacion ikerbasque | 1K | 65.5K | 2 |
| AS61181ES | METRO-DE-MADRID-AS METRO DE MADRID, S.A. | 1K | — | 1 |
| AS201152ES | AREAPROJECT-AS1 Area Project Solutions SL | 1K | — | 1 |
| AS207904ES | VEUIBITS VEU I BITS, SERVEIS EMPRESARIALS S.L. | 1K | — | 4 |
| AS215334ES | CORREOMASTER-AS CORREOMASTER SL | 1K | — | 1 |
| AS201346ES | todoencloud TODO EN CLOUD SL | 1K | — | 4 |
| AS207495ES | saforwifi Safor Wifi, SL | 1K | — | 4 |
| AS24452ES | AS-EONFMEDA EonF Meda SL | 1K | 2 | 6 |
| AS204773ES | DMNTR Felipe Canizares Navarro trading as DMNTR NETWORK SOLUTIONS | 1K | 458.8K | 7 |
| AS56989ES | as-ariadnext Valor Information Technologies, S.L. | 1K | — | 1 |
| AS34760ES | N2000-AS Internet Applications and Resources, S.L. | 1K | — | 1 |
| AS209803ES | FIBERCITY FIBER CITY NETWORKS SLU | 1K | — | 1 |
| AS214043ES | AS-CLOUDFIRA Christian Barba trading as Cloudfira | 1K | 16 | 4 |
| AS205572ES | fibratown-as Fibratown, S.L. | 1K | 524.3K | 2 |
| AS42329ES | es-aitel Aietes Telecom SL | 1K | — | 4 |
| AS210048ES | semat Oficina Semat Data, SL | 1K | — | 1 |
| AS207405ES | ASN-TETRATEL Tetratel Comunicaciones SLU | 1K | — | 4 |
| AS202765ES | es-datacentereuskadi DATA CENTER EUSKADI SOCIEDAD LIMITADA | 1K | — | 3 |
| AS210086ES | NEXIA CONNECTA 1876 SLU | 1K | — | 4 |
| AS210995ES | AS_TIREA TECNOLOGIAS DE LA INFORMACION Y REDES PARA LAS ENTIDADES ASEGURADORAS SA | 1K | — | 3 |
| AS206101ES | EPIC_TELECOM EPIC SOLUTIONS, S.L. | 1K | — | 4 |
| AS210321ES | OPKM0 Operadors Quilometre Zero S.L. | 1K | 524.3K | 5 |
| AS50235ES | EUIPO-AS European Union Intellectual Property Office | 1K | — | 4 |
| AS209919ES | AMHINFORMATICA AMH Servicios Informaticos,sc | 1K | — | 1 |
| AS200956ES | DTES DELOITTE AUDITORES SL | 1K | — | 4 |
| AS212186ES | WIKILAN-AS Goodser Sociedad Limitada | 1K | — | 4 |
| AS212721ES | AXARWIFI Francisco Javier Gordillo Perez | 1K | — | 4 |
| AS8318ES | CMX-AS CEMEX ESPANA S.A. | 1K | — | 4 |
| AS197397ES | SESCAM Servicio de Salud de Castilla-Mancha | 1K | — | 1 |
| AS200811ES | TLM Free Technologies Excom S.L. | 1K | — | 1 |
| AS199359ES | mertel TELECOMUNICACIONES MERINO S.A. | 1K | — | 1 |
| AS204556ES | SysAdminOK SysAdminOK SL | 1K | 524.3K | 5 |
| AS41705ES | grupobaladig Grupo Baladig SL | 1K | — | 4 |
| AS62043ES | Repsol REPSOL S.A. | 1K | — | 4 |
| AS48952ES | LUXUNIT BREAK FREE TELECOM SL | 1K | — | 1 |
| AS209521ES | cadenaeneregia Cadena Energia Radio S.L. | 1K | — | 1 |