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How Spain ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
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 |
| AS29119ES | SERVIHOSTING-AS AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL | 688.4K | 400 |
| AS12338ES | EUSKALTEL Euskaltel S.A. | 658.4K | 117 |
| AS12334ES | R Cable y Telecable Telecomunicaciones, S.A.U. | 443.4K | 37 |
| AS200845ES | AVATEL-AS AVATEL TELECOM, SA | 363.3K | 472 |
| 256 |
| — |
| 1 |
| AS44989ES | AERNNOVA-AS AERNNOVA AEROSPACE SA Unipersonal | 256 | — | 1 |
| AS201359ES | YMEDIANET IPROSPECT ADVERTISING S.A. | 256 | — | 1 |
| AS208726ES | ASFIATC FIATC MUTUA DE SEGUROS Y REASEGUROS | 256 | — | 1 |
| AS203012ES | gestioniza FIBRITEL TELECOMUNICACIONES SL | 256 | — | 1 |
| AS197483ES | ADSYSTEMS-AS SYSAD IT SERVICES SL | 256 | 16 | 2 |
| AS25544ES | EROSKI Eroski Scoop. | 256 | — | 1 |
| AS29117ES | ChatHispano Asociacion IRC Hispano | 256 | 1 | 2 |
| AS214080ES | TRANSPARENT-EDGE Transparent Edge Services S.L. | 256 | — | 1 |
| AS212963ES | SERGIOB Sergio Bejarano Romero | 256 | — | 1 |
| AS49212ES | REALE-SEGUROS-AS REALE SEGUROS GENERALES, S.A | 256 | — | 1 |
| AS13137ES | AGENCIAEFE-AS AGENCIA EFE SA | 256 | — | 1 |
| AS207191ES | T2OAS T2O AD MEDIA SERVICES S.L. | 256 | — | 1 |
| AS202210ES | Renta4_AS RENTA 4 BANCO S.A. | 256 | — | 1 |
| AS210605ES | ITENCORE IT ENCORE TECNOLOGIA SL | 256 | — | 1 |
| AS9052ES | Unidad Editorial SA | 256 | — | 1 |
| AS206041ES | NETWORKHERO Network Hero, S.L. | 256 | — | 1 |
| AS199772ES | Fontventa FONTVENTA SL | 256 | — | 1 |
| AS216003ES | TVTRUJILLO TELEVISION TRUJILLO S.L. | 256 | — | 1 |
| AS218918ES | DATA-INNOVATION-SL DATA INNOVATION S.L. | 256 | — | 1 |
| AS50816ES | INESCOP-AS INSTITUTO TECNOLOGICO DEL CALZADO Y CONEXAS INESCOP | 256 | — | 1 |
| AS211074ES | ESPUBLICO ESPUBLICO SERVICIOS PARA LA ADMINISTRACION SA | 256 | — | 1 |
| AS219161ES | TEUIT-AS Teuit Sociedad Limitada | 256 | 524.3K | 2 |
| AS199329ES | MEDIOLANUM BANCO MEDIOLANUM SA | 256 | — | 1 |
| AS214855ES | ROBOTSTXT Robotstxt S.L | 256 | — | 1 |
| AS210790ES | coloriuris COLORIURIS S.L. | 256 | — | 1 |
| AS212332ES | THINCO-TELECOM-AS Agustin Lorenzo Sempere trading as Thinco Telecom | 256 | — | 1 |
| AS210189ES | AS_IGUALATORIOMEDICOQUIRURGICO IGUALATORIO MEDICO QUIRURGICO S.A. DE SEGUROS Y REASEGUROS | 256 | — | 1 |
| AS41287ES | IPEOPLE Adjenet Networks SL | 256 | — | 1 |
| AS207628ES | ESTYA-AS Eduardo Senin Herrero | 256 | 524.3K | 2 |
| AS207008ES | FIBRANOSTRA Fibra Nostra, SL | 256 | — | 1 |
| AS208027ES | GESTAMP GESTAMP SERVICIOS, S.A. | 256 | — | 1 |
| AS202018ES | Servinet Servinet Sistemas y Comunicacion S.L. | 256 | — | 1 |
| AS16299ES | XFERA XFERA Moviles S.A. | 512 | — | 2 |
| AS214678ES | TOTALWIFI-AS Total WiFi SL | 512 | — | 2 |
| AS199171ES | GRUPOSMS Systems Maintenance Service EUROPA S.A. | 512 | — | 2 |
| AS59772ES | fluidra FLUIDRA SA | 512 | — | 2 |
| AS199272ES | Accelya Accelya World SLU | 512 | — | 2 |
| AS200937ES | as-novatio NOVATIO COMUNICACIONES AVANZADAS, S.L. | 512 | — | 2 |
| AS214103ES | dmg-usa DIGITAL MEDIA GROWING CLOUD, SL | 512 | — | 2 |
| AS200290ES | AUSTRALTEL AVATEL TELECOM, SA | 512 | — | 1 |
| AS209521ES | cadenaeneregia Cadena Energia Radio S.L. | 512 | — | 1 |
| AS202531ES | gastecom GASTECOM, SL | 512 | — | 2 |
| AS64397ES | euromadi-asn EUROMADI IBERICA SA | 512 | — | 2 |
| AS25412ES | CCMA-AS CORPORACIO CATALANA DE MITJANS AUDIOVISUALS, S.A. | 512 | — | 2 |
| AS206404ES | Altercom21 ALTERCOM-21 SL | 512 | — | 2 |
| AS41418ES | AS-SATELVEX AVATEL TELECOM, SA | 512 | — | 2 |