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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 |
| 2K |
| 524.3K |
| 4 |
| AS42241ES | SODEFESA Mairena del Aljarafe city council | 2K | — | 1 |
| AS24830ES | INTEREC-AS CIRCUITOS ALJARAFE, S.L. | 2K | — | 8 |
| AS212714ES | CANALPOZUELOASN Canal Pozuelo S.L. | 2K | 524.3K | 5 |
| AS28971ES | MEDIAFUSION-ES-AS D-MOBILELAB SPAIN S.A. | 2K | — | 1 |
| AS40973ES | JCCM Junta de Comunidades de Castilla-La Mancha | 2K | — | 1 |
| AS44278ES | GRANACABLE GRANACABLE S.L | 2K | — | 4 |
| AS39838ES | as-peering_latam Valor Information Technologies, S.L. | 2K | 65.5K | 2 |
| AS209478ES | SYSPROVIDER Leyre Rivera Martin | 2K | 524.3K | 6 |
| AS205289ES | ES-FOFNET-AS FIBRA OPTICA FILABRES S.L | 2K | 524.3K | 3 |
| AS207185ES | airconect Free Technologies Excom S.L. | 2K | — | 5 |
| AS206886ES | QPB CYBERMAN INFORMATICA Y COMUNICACIONES, SRLL | 2K | 2 | 7 |
| AS208597ES | ES-NASERTIC-AS NAVARRA DE SERVICIOS Y TECNOLOGIAS S.A. | 2K | 524.3K | 4 |
| AS200695ES | onwifitgn OnWifi Tarragona SLU | 2K | — | 5 |
| AS206565ES | IKAI IKAI Tecnologias Avanzadas, S.L. | 2K | — | 5 |
| AS2606ES | wifiberes Wifiber.es SL | 2K | — | 5 |
| AS202608ES | UNILAN-AS UNILAN TELECOM SL | 2K | — | 5 |
| AS207026ES | QUOPIAM Quopiam Informatica SL | 2K | 524.3K | 6 |
| AS203280ES | andaina Jose Antonio Vazquez Quian | 2K | — | 5 |
| AS206602ES | tvtcable TVT TECNICENTRO, SL UNIP | 2K | — | 2 |
| AS215714ES | codipro CONTROL DIGITAL DE PROCESOS SL | 2K | — | 6 |
| AS205057ES | oka OKA Servicios Internet SL | 2K | — | 5 |
| AS205575ES | VEO-TV-Alameda Veo Telecomunicaciones SL | 2K | — | 8 |
| AS208596ES | VERIMAX Verimax Telecom SL | 2K | — | 3 |
| AS60917ES | TEDRA TEDRA GLOBAL SOLUTIONS S.L. | 2K | 65.5K | 9 |
| AS205506ES | AS-SAYTEL-01 Seidor Soluciones Globales SL | 2K | — | 7 |
| AS213475ES | TMB-AS TRANSPORTS DE BARCELONA, S.A. | 2K | — | 5 |
| AS48864ES | CEMI-MALAGA-AS Centro Municipal de Informatica de Malaga | 2K | — | 1 |
| AS202047ES | ipsecurity BREAK FREE TELECOM SL | 2K | — | 8 |
| AS201105ES | INTERSUR WIFI INTERSUR S.L. | 2K | — | 2 |
| AS214636ES | fibrasur Fibrasur Operadores S.L. | 2K | — | 2 |
| AS48221ES | CASSI EMPRESAS MUNICIPALES DE SEVILLA, A.I.E. | 2K | — | 1 |
| AS215029ES | OXGDC-AS OXIGEN Data Center S.L. | 2K | — | 5 |
| AS5505ES | VADAVO VADAVO SOLUCIONES SL | 2K | 65.5K | 9 |
| AS208170ES | FIBRESPEED FIBRESPEED, S.L. | 2K | — | 5 |
| AS57929ES | OCTANIO-1 Octanio Sistemas Informaticos SL | 2K | — | 1 |
| AS205241ES | Vunkers VUNKERS IT EXPERTS S.L. | 2.3K | 65.5K | 7 |
| AS33932ES | EVERYWAN-AS Minorisa de Sistemas Informaticos y de Gestion, S.L. | 2.3K | 524.3K | 10 |
| AS213006ES | NSFTELECOM Invermae Solutions SL | 2.3K | — | 8 |
| AS210007ES | IFEMA INSTITUCION FERIAL DE MADRID | 2.3K | — | 4 |
| AS202375ES | DIGITALBOX Digital Albox SL | 2.3K | — | 9 |
| AS212849ES | jctecnics J.C. TECNICS, S.L. | 2.3K | — | 6 |
| AS208569ES | NORVOZ Norvoz Telecom, S.L. | 2.3K | 196.6K | 9 |
| AS199904ES | ODC-AS OLIVENET DATA CENTERS SPAIN S.L. | 2.3K | — | 5 |
| AS20905ES | BancoEspanaAS Banco de Espana | 2.3K | 131.1K | 8 |
| AS204858ES | voipminic VOIPMINIC, S.L. | 2.3K | — | 6 |
| AS208222ES | BULLHOST Bullhost Cloud Services, SL | 2.3K | — | 6 |