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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 |
| Byficom BYFITEL COMUNICACIONES SL |
| 512 |
| 524.3K |
| 3 |
| AS208735ES | biwifi BIWIFI TELECOMUNICACIONES S.L. | 512 | — | 2 |
| AS212190ES | PISTACEROASN PISTA CERO, S.L. | 512 | 131.1K | 3 |
| AS35264ES | GobiernoCantabria-AS Gobierno de Cantabria | 512 | — | 2 |
| AS214103ES | dmg-usa DIGITAL MEDIA GROWING CLOUD, SL | 512 | — | 2 |
| AS203457ES | ICFO Fundacio Institut de Ciencies Fotoniques (ICFO) | 512 | — | 1 |
| AS204884ES | FUNDACION-PARQUE-UVA Fundacion Universidad de Valladolid | 512 | — | 2 |
| AS213362ES | enhaced ENHANCED COMMUNICATIONS, S.L. | 512 | — | 2 |
| AS201099ES | HAVAS_MG HAVAS MEDIA GROUP SPAIN SA | 512 | — | 1 |
| AS206404ES | Altercom21 ALTERCOM-21 SL | 512 | — | 2 |
| AS212458ES | IESE IESE, Universidad de Navarra | 512 | — | 2 |
| AS200867ES | RGNET RGNET CLOUD, S.L. | 512 | — | 1 |
| AS204513ES | SERCOM SERCOM INFORMATICA, S.L | 512 | — | 2 |
| AS215488ES | PARKE PARQUE TECNOLOGICO TEKNOLOGI ELKARTEGIA S.A. | 512 | 65.5K | 3 |
| AS202531ES | gastecom GASTECOM, SL | 512 | — | 2 |
| AS24920ES | Sociedad-Estatal-de-Loterias Sociedad Estatal de Loterias y Apuestas del Estado SME, SA | 512 | — | 1 |
| AS56822ES | UniversalTelecom Universal Telecom Experts S.L | 512 | — | 2 |
| AS62236ES | Fibrix Exsotel S.L. | 512 | — | 2 |
| AS62080ES | aalmenar Adrian Almenar Serrano | 512 | 1 | 3 |
| AS204621ES | wirelesslogic-es WIRELESS LOGIC S.L. | 512 | — | 2 |
| AS214113ES | Titan TITAN DATA CENTER, S.L | 512 | — | 2 |
| AS50335ES | PANDA-SECURITY-AS PANDA SECURITY S.L. | 512 | — | 2 |
| AS42211ES | MDE-AS Ministerio de Defensa | 512 | — | 1 |
| AS204774ES | SISTEL SISTEL ALMANZORA S.L. | 512 | — | 2 |
| AS210319ES | ASTomares Telecable Cartaya S.L. | 512 | — | 2 |
| AS212812ES | IRIEPAL CUSTOS messium SLNE | 512 | 1 | 3 |
| AS16299ES | XFERA XFERA Moviles S.A. | 512 | — | 2 |
| AS207030ES | AS1607 AVATEL TELECOM, SA | 512 | — | 2 |
| AS208635ES | AS_DIPUTACION_ALICANTE Diputacion Provincial Alicante | 512 | — | 2 |
| AS209774ES | JUMBO JUMBO TOURS ESPANA SL | 512 | — | 2 |
| AS64397ES | euromadi-asn EUROMADI IBERICA SA | 512 | — | 2 |
| AS34114ES | ZONA-FRANCA-CADIZ-AS Consorcio de la Zona Franca de Cadiz | 512 | — | 1 |
| AS208619ES | BANDAWIFI Free Technologies Excom S.L. | 512 | — | 2 |
| AS214678ES | TOTALWIFI-AS Total WiFi SL | 512 | — | 2 |
| AS215693ES | PalmaHost Bruno Andres Sampedro Trujillo | 512 | — | 2 |
| AS31479ES | ES-IPorium-AS Valor Information Technologies, S.L. | 512 | — | 1 |
| AS210692ES | SOASTEL Soluciones y Asesoramiento en Telecomunicaciones S.L. | 512 | — | 2 |
| AS209235ES | fibercli Fibercli Proyectos e Innovacion S.L. | 512 | 65.5K | 3 |
| AS25261ES | IBERIA IBERIA LINEAS AEREAS DE ESPANA SOCIEDAD ANONIMA OPERADORA | 512 | — | 2 |
| AS41418ES | AS-SATELVEX AVATEL TELECOM, SA | 512 | — | 2 |
| AS16203ES | NCG Banco SA | 512 | — | 2 |
| AS207367ES | NipponGases NIPPON SANSO EURO-HOLDING SL | 512 | 524.3K | 3 |
| AS206208ES | PUSIC-JURAJ-AS Pusic Jurai | 512 | — | 2 |
| AS206268ES | guifibages Associacio Usuaris Guifibages | 512 | — | 2 |
| AS200290ES | AUSTRALTEL AVATEL TELECOM, SA | 512 | — | 1 |
| AS202550ES | GLUTEC GLU TECHNOLOGIES, S.L.U | 512 | 524.3K | 3 |
| AS199685ES | FIRST-SERVER-EU-WEST FIRST SERVER, SOCIEDAD LIMITADA | 512 | 2 | 3 |