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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 |
| 512 |
| — |
| 2 |
| AS62080ES | aalmenar Adrian Almenar Serrano | 512 | 1 | 3 |
| AS199685ES | FIRST-SERVER-EU-WEST FIRST SERVER, SOCIEDAD LIMITADA | 512 | 2 | 3 |
| AS215488ES | PARKE PARQUE TECNOLOGICO TEKNOLOGI ELKARTEGIA S.A. | 512 | 65.5K | 3 |
| AS204774ES | SISTEL SISTEL ALMANZORA S.L. | 512 | — | 2 |
| AS215693ES | PalmaHost Bruno Andres Sampedro Trujillo | 512 | — | 2 |
| AS215856ES | FABERTELECOM Fabertelecom, SL | 512 | — | 2 |
| AS211441ES | Byficom BYFITEL COMUNICACIONES SL | 512 | 524.3K | 3 |
| AS206215ES | AS-KAERULABS-ES KAERU Labs, S.L. | 512 | 256 | 3 |
| AS213825ES | ES-NEORIS NEORIS SPAIN SLU | 512 | — | 2 |
| AS204563ES | TRT-MAD NexTReT S.L. | 512 | — | 2 |
| AS59772ES | fluidra FLUIDRA SA | 512 | — | 2 |
| AS209235ES | fibercli Fibercli Proyectos e Innovacion S.L. | 512 | 65.5K | 3 |
| AS210319ES | ASTomares Telecable Cartaya S.L. | 512 | — | 2 |
| AS204513ES | SERCOM SERCOM INFORMATICA, S.L | 512 | — | 2 |
| AS41418ES | AS-SATELVEX AVATEL TELECOM, SA | 512 | — | 2 |
| AS206524ES | Telconet TELCONET SISTEMAS S.L. | 512 | — | 2 |
| AS207367ES | NipponGases NIPPON SANSO EURO-HOLDING SL | 512 | 524.3K | 3 |
| AS25412ES | CCMA-AS CORPORACIO CATALANA DE MITJANS AUDIOVISUALS, S.A. | 512 | — | 2 |
| AS49538ES | PSOE Partido Socialista Obrero Espanol (PSOE) | 512 | — | 1 |
| AS35264ES | GobiernoCantabria-AS Gobierno de Cantabria | 512 | — | 2 |
| AS207579ES | NUMBERONE DITT REDMOVIL SL | 512 | — | 2 |
| AS41072ES | FNMT Fabrica Nacional de Moneda y Timbre | 256 | — | 1 |
| AS208726ES | ASFIATC FIATC MUTUA DE SEGUROS Y REASEGUROS | 256 | — | 1 |
| AS199949ES | SEGON-AS Grupo On Seguridad SL | 256 | — | 1 |
| AS199955ES | Adder_Computer_SL Adder Computer, SL | 256 | — | 1 |
| AS213615ES | AS-ODCLOUD ON DIVERSITY CLOUD EUROPE, S.L. | 256 | 16 | 17 |
| AS212957ES | HUCAME-AS Hucame Telecom Networks SLU | 256 | — | 1 |
| AS201426ES | HostingSoltia Soltia Consulting SL | 256 | — | 1 |
| AS213138ES | alfanetwork Alfa Network SL | 256 | — | 1 |
| AS31164ES | LABESTEVE-AS ESTEVE PHARMACEUTICALS SA | 256 | — | 1 |
| AS202018ES | Servinet Servinet Sistemas y Comunicacion S.L. | 256 | — | 1 |
| AS204629ES | Qemugen_Cloud Valor Information Technologies, S.L. | 256 | 65.5K | 2 |
| AS197183ES | Occentus Occentus Network SL | 256 | — | 1 |
| AS39536ES | botic BO ICT Management, S.L. | 256 | — | 1 |
| AS201619ES | wifitoons Wifitoons S.L. | 256 | — | 1 |
| AS210605ES | ITENCORE IT ENCORE TECNOLOGIA SL | 256 | — | 1 |
| AS205796ES | BRUTALSYS Brutalsys, S.L. | 256 | — | 1 |
| AS205457ES | Wisp_Tachira Valor Information Technologies, S.L. | 256 | 65.5K | 2 |
| AS199312ES | Megavista Free Technologies Excom S.L. | 256 | — | 1 |
| AS207008ES | FIBRANOSTRA Fibra Nostra, SL | 256 | — | 1 |
| AS204695ES | asservan MARIA JOSEFA SILVERO PARRA | 256 | — | 1 |
| AS212230ES | VIESGO VIESGO INFRAESTRUCTURAS ENERGETICAS S.L. | 256 | — | 1 |
| AS42212ES | BUILD2EDIFICA-AS NALANDA GLOBAL S.A. | 256 | — | 1 |
| AS213600ES | voicecloud VOICE CLOUD SL | 256 | 1 | 2 |
| AS49212ES | REALE-SEGUROS-AS REALE SEGUROS GENERALES, S.A | 256 | — | 1 |
| AS60076ES | DONDE Dynamic Over Network De Espana SL | 256 | — | 1 |