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How Spain ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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 |
| 7.2K |
| — |
| 14 |
| AS20815ES | GRN-AS GRN Serveis Telematics SL | 7.4K | — | 9 |
| AS12357ES | COMUNITEL VODAFONE ESPANA S.A.U. | 7.4K | — | 17 |
| AS201466ES | XTA-AS Xarxes de Telecomunicacions Alternatives SL | 7.4K | 589.8K | 10 |
| AS203600ES | tvloja VIVAFIBRA TELECOMUNICACIONES, S.L. | 7.7K | — | 22 |
| AS213686ES | AION-QTAL-ON-FIBRA-OPTICA AION QTAL ON FIBRA OPTICA S.L. | 7.7K | — | 15 |
| AS16003ES | FORNEX-NL-AS Fornex Hosting S.L. | 7.7K | 2 | 29 |
| AS198066ES | LOADING Grupo Loading Systems, S.L. | 7.9K | 131.1K | 33 |
| AS41721ES | CARTAGON Cartagon Cloud SL | 7.9K | — | 31 |
| AS60314ES | IMI-AS Institut Municipal d'Informatica (IMI) | 8.2K | — | 1 |
| AS16091ES | SATEC SISTEMAS AVANZADOS DE TECNOLOGIA SA | 8.2K | — | 1 |
| AS12569ES | INYCOM Instrumentacion y Componentes, SA | 8.2K | — | 1 |
| AS20693ES | INTERNET-XPRESS-AS Nunsys SA | 8.2K | — | 1 |
| AS15630ES | UNED Universidad Nacional de Educacion a Distancia - UNED | 8.2K | 65.5K | 2 |
| AS12540ES | IDECNET-AS IdecNet S.A. | 8.2K | 524.3K | 2 |
| AS209492ES | ITSARRIA INFORMATICA Y TELECOMUNICACIONES SARRIA S.L. | 8.2K | — | 18 |
| AS9075ES | RECOLETOS Unidad Editorial SA | 8.2K | — | 1 |
| AS199226ES | Cablemel-AS Cablemel S.L. | 8.2K | — | 2 |
| AS62412ES | Borecom Borecom Networks, S.L. | 8.2K | 3.1M | 19 |
| AS49851ES | AST-AS Aragonesa de Servicios Telematicos | 8.2K | — | 17 |
| AS43160ES | ES-MDC-DATACENTER AVATEL TELECOM, SA | 8.2K | 65.5K | 18 |
| AS209835ES | AVANZAFIBRA Despliegue de Redes de Telecomunicaciones S.L. | 8.2K | 9 | 34 |
| AS8239ES | NEXTLEVEL-CONNECTIVITY-ISP LYNTIA NETWORKS S.A. | 8.2K | 16 | 2 |
| AS12319ES | IZFE-AS Informatika Zerbitzuen Foru Elkartea Sociedad Foral de Servicios Informaticos SA | 8.2K | — | 1 |
| AS199290ES | MOWITEL INSTALACIONES Y SERVICIOS MOWITEL S.L. | 8.4K | — | 17 |
| AS39447ES | ZERTIA-AS ZERTIA TELECOMUNICACIONES S.L. | 8.4K | — | 2 |
| AS200555ES | wificanarias WiFi Canarias de Telecomunicaciones y Fibra SL | 8.4K | — | 20 |
| AS203936ES | AS-MISMENET AVATEL TELECOM, SA | 8.4K | 524.3K | 21 |
| AS207046ES | redservicio XNET CORE SL | 8.4K | — | 15 |
| AS201843ES | IBERSONTEL IBERSONTEL SOLUCIONES MOVILES S.L. | 8.4K | — | 30 |
| AS200030ES | DVBLAB-AS Dvblab Communication SL | 8.4K | 65.5K | 13 |
| AS29231ES | GRUPALIA-AS Grupalia Internet S.A. | 8.4K | 65.5K | 3 |
| AS210876ES | SERPAIO Invermae Solutions SL | 8.7K | — | 16 |
| AS25479ES | IC2-AS IT Now S.A. | 8.7K | — | 5 |
| AS212830ES | PSJCLOUD Invermae Solutions SL | 8.7K | — | 11 |
| AS202813ES | ASLIBER LIBERATEL COMUNICACIONES, S.L. | 8.7K | 1M | 29 |
| AS41397ES | REDESTEL-AS Redes Digitales de Telecomunicacion en Internet SL | 9K | — | 16 |
| AS15937ES | ADIF ADIF | 9.2K | — | 2 |
| AS56345ES | TELEDISTRIBUCION_BAENA_AS TVB TELEDISTRIBUCION S.L. | 9.2K | — | 8 |
| AS197712ES | CDmon 10dencehispahard, S.L. | 9.2K | — | 10 |
| AS209281ES | GETECOM Generacion Tecnologica De Comunicaciones, Sociedad Limitada. | 9.2K | — | 19 |
| AS205718ES | ALCORT ALCORT INGENIERIA Y ASESORIA S.L. | 9.2K | 540.7K | 18 |
| AS206657ES | Cablevision Jose Leon Alvarez | 9.2K | — | 21 |
| AS59432ES | GINERNET GINERNET S.L. | 9.2K | 196.6K | 26 |
| AS16168ES | GENETSIS GENETSIS PARTNERS SL | 9.5K | — | 3 |
| AS50429ES | ATOSSPAIN-AS ATOS Spain SA | 9.5K | — | 6 |
| AS200810ES | Conecta3 CONECTA 3 TELECOM S.L. | 9.7K | 65.5K | 23 |