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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 |
| roca Roca Sanitario, S.A. |
| 1K |
| — |
| 1 |
| AS200509ES | SVINT-ASN Comlocal, S.L. | 1K | — | 4 |
| AS200421ES | FIRMAMED Hermandad Farmaceutica del Mediterraneo S.C.L. | 1K | — | 2 |
| AS207405ES | ASN-TETRATEL Tetratel Comunicaciones SLU | 1K | — | 4 |
| AS199589ES | DANTIA Dantia Tecnologia S.L. | 1K | — | 4 |
| AS211359ES | AS_BINTER_SISTEMAS BINTER SISTEMAS SL | 1K | — | 3 |
| AS204811ES | Zinnia ZINNIA TELECOMUNICACIONES SL. | 1K | — | 1 |
| AS211471ES | ASILOVEFIBRA iLoveFibra S.L. | 1K | — | 3 |
| AS205270ES | fibroptic FIBROPTIC CAT TELECOM SL | 1K | — | 4 |
| AS200481ES | innubo SERVEIS INNUBO SL | 1K | — | 1 |
| AS204773ES | DMNTR Felipe Canizares Navarro trading as DMNTR NETWORK SOLUTIONS | 1K | 458.8K | 7 |
| AS200336ES | PCSTAR Dimitar Dandulov | 1K | — | 1 |
| AS202686ES | Sestaferia Sestaferia Digital Sociedad Cooperativa Asturiana | 1K | — | 1 |
| AS209521ES | cadenaeneregia Cadena Energia Radio S.L. | 1K | — | 1 |
| AS204758ES | Cabisur CABINAS TELEFONICAS DEL SUR, S.L. | 1K | — | 4 |
| AS215018ES | CORTEX CORTEX SP COMPUTER, S.L. | 1K | — | 3 |
| AS200387ES | ARLU Tele puerto real SL | 1K | — | 4 |
| AS43115ES | PIC Consorci Institut de Fisica Altes Energies | 1K | 1 | 2 |
| AS207058ES | dimatica Dimatica Servicios informaticos Avanzados S.L | 1K | — | 4 |
| AS31082ES | AS-Kuali_Digital Valor Information Technologies, S.L. | 1K | — | 4 |
| AS202503ES | XEnet DESIS INFORMATICA, SL | 1K | 135.4K | 20 |
| AS210048ES | semat Oficina Semat Data, SL | 1K | — | 1 |
| AS34760ES | N2000-AS Internet Applications and Resources, S.L. | 1K | — | 1 |
| AS207495ES | saforwifi Safor Wifi, SL | 1K | — | 4 |
| AS59908ES | ISLALINK BalaLink S.A. | 1K | 65.5K | 5 |
| AS20718ES | AS_ARSYS-EURO-1 ARSYS INTERNET S.L.U. | 1K | — | 1 |
| AS25247ES | IBERCAJA-AS IBERCAJA BANCO SA | 1K | — | 1 |
| AS51415ES | ES-techco-security-1 Securitas Seguridad Espana S.A. | 1K | — | 2 |
| AS202305ES | WIRERED JOAN GRAU FERRI trading as Wirered | 1K | — | 1 |
| AS204854ES | ACMIPNETWORK-AS ACM IPNETWORK LA PALMA, S.L. | 1K | — | 4 |
| AS209287ES | IRSOL INNOVACION RIOJANA DE SOLUCIONES IT S.L. | 1K | — | 1 |
| AS207915ES | symeetric Invermae Solutions SL | 1K | — | 1 |
| AS35461ES | ACCIONA-AS ACCIONA S.A. | 1K | — | 4 |
| AS210995ES | AS_TIREA TECNOLOGIAS DE LA INFORMACION Y REDES PARA LAS ENTIDADES ASEGURADORAS SA | 1K | — | 3 |
| AS35486ES | CORDOBADATACENTER AXENTIO SL | 1K | — | 4 |
| AS204998ES | somconnexio Som Connexio SCCL | 1K | — | 1 |
| AS201152ES | AREAPROJECT-AS1 Area Project Solutions SL | 1K | — | 1 |
| AS24452ES | AS-EONFMEDA EonF Meda SL | 1K | 2 | 6 |
| AS35153ES | ES-ONDAWIFI-AS Free Technologies Excom S.L. | 1K | — | 4 |
| AS208486ES | IPARFIBRA IPARFIBRA SL | 1K | — | 3 |
| AS208248ES | SCS-AS Innovative Business Software Iberia S.L. | 1K | — | 4 |
| AS214043ES | AS-CLOUDFIRA Christian Barba trading as Cloudfira | 1K | 16 | 4 |
| AS206102ES | ASPL Advanced Software Production Line, S.L. | 1K | — | 4 |
| AS209919ES | AMHINFORMATICA AMH Servicios Informaticos,sc | 1K | — | 1 |
| AS12924ES | VIAES-AS Gamma UCaaS Comercializadora, S.L.U. | 1K | 524.3K | 5 |
| AS62055ES | SUVOZ SUVOZ GLOBAL SERVICES S.L. | 1K | — | 4 |
| AS41705ES | grupobaladig Grupo Baladig SL | 1K | — | 4 |