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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 |
| SCANSAT-AS AVATEL TELECOM, SA |
| 256 |
| — |
| 1 |
| AS49638ES | CATNIX Consorci de Serveis Universitaris de Catalunya | 256 | 1 | 2 |
| AS210189ES | AS_IGUALATORIOMEDICOQUIRURGICO IGUALATORIO MEDICO QUIRURGICO S.A. DE SEGUROS Y REASEGUROS | 256 | — | 1 |
| AS208027ES | GESTAMP GESTAMP SERVICIOS, S.A. | 256 | — | 1 |
| AS204654ES | ASAGROSEGURO AGRUPACION ESPANOLA DE ENTIDADES ASEGURADORAS DE LOS SEGUROS AGRARIOS COMBINADOS SA | 256 | — | 1 |
| AS212332ES | THINCO-TELECOM-AS Agustin Lorenzo Sempere trading as Thinco Telecom | 256 | 267 | 6 |
| AS203051ES | DIPUAVILA DIPUTACION PROVINCIAL DE AVILA | 256 | — | 1 |
| AS31332ES | INDUSTRIA-DE-TURBO-PROPULSORES-AS Industria de Turbo Propulsores S.A. | 256 | — | 1 |
| AS204175ES | AKINOSTRA Nostravant S.L.L. | 256 | — | 1 |
| AS205796ES | BRUTALSYS Brutalsys, S.L. | 256 | — | 1 |
| AS16373ES | MOEVE MOEVE SA | 256 | — | 1 |
| AS29269ES | CLOUDGLOBAL-AS Cloud Global S.L. | 256 | — | 1 |
| AS212116ES | VentoRede Vento Rede, S.L. | 256 | — | 1 |
| AS210469ES | CARLOSL Carlos Latorre Sanchez | 256 | 16 | 2 |
| AS199329ES | MEDIOLANUM BANCO MEDIOLANUM SA | 256 | — | 1 |
| AS214930ES | FINITUD-LABS-AS Alice Wyan Garcia Martin | 256 | 673 | 7 |
| AS208726ES | ASFIATC FIATC MUTUA DE SEGUROS Y REASEGUROS | 256 | — | 1 |
| AS202915ES | CUSTOS-AS CUSTOS messium SLNE | 256 | — | 1 |
| AS15608ES | Banco Inversis S.A. | 256 | — | 1 |
| AS213138ES | alfanetwork Alfa Network SL | 256 | — | 1 |
| AS215656ES | servaticabcn Servatica Technologies, S.L. | 256 | 524.3K | 2 |
| AS49118ES | GYD-AS GYD IBERICA SA | 256 | — | 1 |
| AS200171ES | NTTSWSAAS-AS NUEVA TECNOLOGIA TECNICA, S.L. | 256 | — | 1 |
| AS216371ES | ipglobal IPGLOBAL S.L. | 256 | 524.3K | 2 |
| AS42816ES | FLUMOTION FLUMOTION SERVICES, S.A. | 256 | — | 1 |
| AS199760ES | POYATOS-AS Pau Poyatos Fuentes | 256 | — | 1 |
| AS56551ES | CVQ1-RIPE Ayuntamiento Rivas Vaciamadrid | 256 | — | 1 |
| AS211345ES | ValldignaLive Toni Plana i Peris | 256 | — | 1 |
| AS207191ES | T2OAS T2O AD MEDIA SERVICES S.L. | 256 | — | 1 |
| AS199889ES | cvip Cvip Soluciones Tecnologicas Alternativas Sl. | 256 | 524.3K | 2 |
| AS204134ES | INCServers Jose Socrates Reviejo Bermejo | 256 | 1 | 2 |
| AS205113ES | obs OLYMPIC BROADCASTING SERVICES SL | 256 | — | 1 |
| AS42212ES | BUILD2EDIFICA-AS NALANDA GLOBAL S.A. | 256 | — | 1 |
| AS215894ES | BLANCATEL BLANCATEL, S.L. | 256 | — | 1 |
| AS199149ES | SOLINTEX-INSULAR Solintex Insular SLU | 256 | — | 1 |
| AS214340ES | AS-24racksCloud 24racks Cloud S.L. | 256 | 1 | 2 |
| AS213825ES | ES-NEORIS NEORIS SPAIN SLU | 512 | — | 2 |
| AS29397ES | HP-WEBVAULT ENTERPRISE SOLUTIONS OUTSOURCING ESPANA SL | 512 | — | 1 |
| AS208925ES | nolimitnet NO LIMIT NETWORK SA | 512 | 524.3K | 3 |
| AS59772ES | fluidra FLUIDRA SA | 512 | — | 2 |
| AS49008ES | ELSTIR-AS Elstir S.L. | 512 | — | 1 |
| AS213742ES | gatewayglbl Gateway Global Telecom SLU | 512 | — | 2 |
| AS51105ES | STACKSCALE Stackscale S.L. | 512 | — | 2 |
| AS207579ES | NUMBERONE DITT REDMOVIL SL | 512 | — | 2 |
| AS199171ES | GRUPOSMS Systems Maintenance Service EUROPA S.A. | 512 | — | 2 |
| AS199272ES | Accelya Accelya World SLU | 512 | — | 2 |
| AS206215ES | AS-KAERULABS-ES KAERU Labs, S.L. | 512 | 256 | 3 |