Spain
IP address space, AS numbers and the largest networks registered in Spain, based on the delegation records of the regional internet registries.
IPv4 addresses
31.9M
3,780 blocks
IPv6 allocations
890
AS numbers
1,170
Routed AS numbers
957
Largest networks in Spain
By announced prefixes| AS | Name | IPv4 prefixes | IPv6 prefixes |
|---|---|---|---|
| AS12479 | UNI2-AS Orange Espagne SA | 7,008 | 1,537 |
| AS200845 | AVATEL-AS AVATEL TELECOM, SA | 471 | 2 |
| AS29119 | SERVIHOSTING-AS AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL | 396 | 14 |
| AS15704 | AS15704 XTRA TELECOM S.A. | 313 | 53 |
| AS3352 | Telefonica_de_EspaNa TELEFONICA DE ESPANA S.A.U. | 211 | 17 |
| AS34977 | PROCONO-AS PROCONO S.A. | 164 | 2 |
| AS12338 | EUSKALTEL Euskaltel S.A. | 116 | 22 |
| AS2134 | GSVNET-AS Santander Global Technology and Operations, S.L. | 132 | 0 |
| AS57910 | SCIP-AS Soluciones Corporativas IP, SL | 107 | 12 |
| AS8903 | AS8903 LYNTIA NETWORKS S.A. | 111 | 8 |
| AS35699 | ADAMOEU-AS Adamo Telecom Iberia S.A. | 112 | 6 |
| AS16371 | acens_AS acens Technologies, S.L. | 116 | 1 |
| AS205563 | zGato Marc Gomez | 1 | 115 |
| AS12541 | LYNTIA_BB_AS LYNTIA NETWORKS S.A. | 110 | 1 |
| AS34471 | EXCOM-AS Free Technologies Excom S.L. | 91 | 9 |
| AS49635 | CLOUDING CLOUDI NEXTGEN SL | 97 | 0 |
| AS42947 | SKYNETLINK-AS Telfy Telecom S.L. | 70 | 19 |
| AS39155 | JETNET JETNET WIMAX S.A | 88 | 0 |
| AS44051 | FORNEX-AS Fornex Hosting S.L. | 81 | 5 |
| AS201746 | OLIVENET-AS Olivenet Network S.L. | 78 | 0 |
| AS39551 | GENCAT-AS Centre de Telecomunicacions i Tecnologies de la Informacio de la Ge... | 76 | 0 |
| AS41368 | TVALMANSA-ASN Spotting Brands Technologies S.L. | 76 | 0 |
| AS6739 | ONO-AS VODAFONE ONO, S.A. | 68 | 1 |
| AS198760 | QUATTRE-AS Quattre Internet SL | 68 | 0 |
| AS39020 | COMVIVE-AS Comvive Servidores S.L. | 63 | 3 |
| AS201942 | SOLTIA Soltia Consulting SL | 63 | 1 |
| AS212087 | JOTELULU PLENIT TECHNOLOGY, S.L. | 61 | 0 |
| AS13287 | NIXVAL FALBOX S.L. trading as NIXVAL | 53 | 8 |
| AS200521 | SEAP-AGE Ministerio de Transformacion Digital y de la Funcion Publica | 58 | 3 |
| AS16030 | ALTECOM FIBRACAT Telecom, S.L.U. | 55 | 0 |
Delegations by registry: RIPE 4,665, APNIC 3, ARIN 2. Updated 2026-10-04.