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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 |
| SOLINTEX-INSULAR Solintex Insular SLU |
| 256 |
| — |
| 1 |
| AS201569ES | northpoint North Point Solution SL | 256 | 65.5K | 2 |
| AS199949ES | SEGON-AS Grupo On Seguridad SL | 256 | — | 1 |
| AS212107ES | SINOPHOS-AS SINOPHOS GROUP LLORET SL. | 256 | — | 1 |
| AS216003ES | TVTRUJILLO TELEVISION TRUJILLO S.L. | 256 | — | 1 |
| AS49638ES | CATNIX Consorci de Serveis Universitaris de Catalunya | 256 | 1 | 2 |
| AS204629ES | Qemugen_Cloud Valor Information Technologies, S.L. | 256 | 65.5K | 2 |
| AS199312ES | Megavista Free Technologies Excom S.L. | 256 | — | 1 |
| AS60076ES | DONDE Dynamic Over Network De Espana SL | 256 | — | 1 |
| AS207008ES | FIBRANOSTRA Fibra Nostra, SL | 256 | — | 1 |
| AS9052ES | Unidad Editorial SA | 256 | — | 1 |
| AS56551ES | CVQ1-RIPE Ayuntamiento Rivas Vaciamadrid | 256 | — | 1 |
| AS212332ES | THINCO-TELECOM-AS Agustin Lorenzo Sempere trading as Thinco Telecom | 256 | 267 | 6 |
| AS202915ES | CUSTOS-AS CUSTOS messium SLNE | 256 | — | 1 |
| AS39536ES | botic BO ICT Management, S.L. | 256 | — | 1 |
| AS202754ES | inalnet Free Technologies Excom S.L. | 256 | — | 1 |
| AS31164ES | LABESTEVE-AS ESTEVE PHARMACEUTICALS SA | 256 | — | 1 |
| AS214470ES | DIFFERNET-AS Carmen Rocio Jimenez Pulido | 256 | 32.8K | 2 |
| AS213138ES | alfanetwork Alfa Network SL | 256 | — | 1 |
| AS43419ES | digitel Valor Information Technologies, S.L. | 256 | 65.5K | 2 |
| AS205796ES | BRUTALSYS Brutalsys, S.L. | 256 | — | 1 |
| AS215235ES | CUVIC Cuvicbaga Informatica S.L. | 256 | — | 1 |
| AS214080ES | TRANSPARENT-EDGE Transparent Edge Services S.L. | 256 | — | 1 |
| AS210790ES | coloriuris COLORIURIS S.L. | 256 | — | 1 |
| AS212052ES | ASNETEXPERIENCE AMADO NEBOT FORES | 256 | — | 1 |
| AS209259ES | ASAENOR Corporacion Confidere SA | 256 | — | 1 |
| AS208027ES | GESTAMP GESTAMP SERVICIOS, S.A. | 256 | — | 1 |
| AS212963ES | SERGIOB Sergio Bejarano Romero | 256 | — | 1 |
| AS205446ES | Atlas Atlas Montajes e Ingenieria SL Unipersonal | 256 | — | 1 |
| AS210605ES | ITENCORE IT ENCORE TECNOLOGIA SL | 256 | — | 1 |
| AS42212ES | BUILD2EDIFICA-AS NALANDA GLOBAL S.A. | 256 | — | 1 |
| AS206041ES | NETWORKHERO Network Hero, S.L. | 256 | — | 1 |
| AS212230ES | VIESGO VIESGO INFRAESTRUCTURAS ENERGETICAS S.L. | 256 | — | 1 |
| AS9094ES | LYNTIA_MSP_INTERNAL LYNTIA NETWORKS S.A. | 256 | — | 1 |
| AS202349ES | Fibrabox Fibercli Proyectos e Innovacion S.L. | 256 | — | 1 |
| AS204628ES | AS-Network-Service Valor Information Technologies, S.L. | 256 | 65.5K | 2 |
| AS199428ES | AlvaroNavas Alvaro Navas | 256 | 16 | 2 |
| AS41072ES | FNMT Fabrica Nacional de Moneda y Timbre | 256 | — | 1 |
| AS205580ES | EFCA-ASN European Fisheries Control Agency | 256 | — | 1 |
| AS205457ES | Wisp_Tachira Valor Information Technologies, S.L. | 256 | 65.5K | 2 |
| AS213600ES | voicecloud VOICE CLOUD SL | 256 | 1 | 2 |
| AS203978ES | RIOTELECOMM-SUR Free Technologies Excom S.L. | 256 | — | 1 |
| AS42722ES | GRIFOLS-AS Grifols S.A. | 256 | — | 1 |
| AS199955ES | Adder_Computer_SL Adder Computer, SL | 256 | — | 1 |
| AS15608ES | Banco Inversis S.A. | 256 | — | 1 |
| AS204248ES | Edgar_Torres_Llavero Edgar Torres Llavero | 256 | — | 1 |
| AS210055ES | ELECTROPUERTOSUR FIBERPLUS COMUNICATIONS, SL | 256 | — | 1 |