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Country · ISO ES

Spain

Last fetched

Spain (ES) is home to 1,142 Autonomous Systems registered in the WhisperGraph infrastructure dataset. As of Tue, 09 Jun 2026 12:00:44 GMT, networks based in Spain announce 18,627 routed IP prefixes and host approximately 4,236,947 sampled IPv4 addresses across the country's largest operators.

Top operators

ASNs based in Spain ranked by routed-prefix count.

  1. AS12479AS124798,704 prefixes
  2. AS200845AS200845466 prefixes
  3. AS29119AS29119412 prefixes
  4. AS15704AS15704368 prefixes
  5. AS3352AS3352226 prefixes
  6. AS34977AS34977166 prefixes
  7. AS2134AS2134132 prefixes
  8. AS205563AS205563122 prefixes
  9. AS57910AS57910119 prefixes
  10. AS12338AS12338118 prefixes

Top hosting concentrations

ASNs based in Spain ranked by hosted IPv4 count.

  1. AS6739AS67393,357,195 IPs
  2. AS3352AS3352630,453 IPs
  3. AS766AS766248,358 IPs
  4. AS5505AS5505864 IPs
  5. AS3324AS332442 IPs
  6. AS3262AS326221 IPs
  7. AS2114AS211414 IPs
  8. AS3339AS33390 IPs
  9. AS2606AS26060 IPs
  10. AS2134AS21340 IPs

Top 100 operators

The 100 largest ASNs based in Spainby routed-prefix count — a full crawl path into the country’s network operators.

  1. AS12479AS124798,704 prefixes
  2. AS200845AS200845466 prefixes
  3. AS29119AS29119412 prefixes
  4. AS15704AS15704368 prefixes
  5. AS3352AS3352226 prefixes
  6. AS34977AS34977166 prefixes
  7. AS2134AS2134132 prefixes
  8. AS205563AS205563122 prefixes
  9. AS57910AS57910119 prefixes
  10. AS12338AS12338118 prefixes
  11. AS35699AS35699117 prefixes
  12. AS16371AS16371117 prefixes
  13. AS8903AS8903116 prefixes
  14. AS34471AS3447197 prefixes
  15. AS49635AS4963597 prefixes
  16. AS42947AS4294789 prefixes
  17. AS39155AS3915588 prefixes
  18. AS39551AS3955176 prefixes
  19. AS41368AS4136869 prefixes
  20. AS6739AS673969 prefixes
  21. AS198760AS19876068 prefixes
  22. AS44051AS4405167 prefixes
  23. AS13287AS1328766 prefixes
  24. AS39020AS3902066 prefixes
  25. AS201942AS20194263 prefixes
  26. AS200521AS20052161 prefixes
  27. AS201746AS20174659 prefixes
  28. AS212087AS21208756 prefixes
  29. AS16030AS1603055 prefixes
  30. AS50563AS5056352 prefixes
  31. AS12430AS1243049 prefixes
  32. AS209087AS20908745 prefixes
  33. AS60609AS6060945 prefixes
  34. AS199478AS19947844 prefixes
  35. AS208909AS20890944 prefixes
  36. AS200773AS20077343 prefixes
  37. AS48427AS4842743 prefixes
  38. AS35394AS3539441 prefixes
  39. AS60171AS6017141 prefixes
  40. AS211261AS21126141 prefixes
  41. AS50926AS5092640 prefixes
  42. AS201446AS20144640 prefixes
  43. AS57970AS5797040 prefixes
  44. AS16039AS1603939 prefixes
  45. AS200064AS20006437 prefixes
  46. AS48348AS4834837 prefixes
  47. AS12334AS1233437 prefixes
  48. AS8311AS831136 prefixes
  49. AS209535AS20953536 prefixes
  50. AS50564AS5056434 prefixes
  51. AS209835AS20983534 prefixes
  52. AS198731AS19873134 prefixes
  53. AS766AS76633 prefixes
  54. AS198066AS19806633 prefixes
  55. AS60203AS6020333 prefixes
  56. AS15450AS1545033 prefixes
  57. AS205624AS20562433 prefixes
  58. AS201453AS20145332 prefixes
  59. AS12956AS1295631 prefixes
  60. AS48846AS4884631 prefixes
  61. AS41721AS4172131 prefixes
  62. AS56882AS5688230 prefixes
  63. AS201843AS20184330 prefixes
  64. AS202813AS20281329 prefixes
  65. AS16003AS1600329 prefixes
  66. AS58327AS5832728 prefixes
  67. AS200738AS20073828 prefixes
  68. AS198144AS19814428 prefixes
  69. AS206837AS20683728 prefixes
  70. AS3339AS333928 prefixes
  71. AS12521AS1252127 prefixes
  72. AS51678AS5167827 prefixes
  73. AS207714AS20771427 prefixes
  74. AS202513AS20251327 prefixes
  75. AS59432AS5943226 prefixes
  76. AS202636AS20263626 prefixes
  77. AS201735AS20173525 prefixes
  78. AS51151AS5115125 prefixes
  79. AS15699AS1569925 prefixes
  80. AS60458AS6045824 prefixes
  81. AS200810AS20081023 prefixes
  82. AS56571AS5657123 prefixes
  83. AS21193AS2119323 prefixes
  84. AS31577AS3157722 prefixes
  85. AS16383AS1638322 prefixes
  86. AS206757AS20675722 prefixes
  87. AS49835AS4983522 prefixes
  88. AS203600AS20360022 prefixes
  89. AS51487AS5148721 prefixes
  90. AS196713AS19671321 prefixes
  91. AS3262AS326221 prefixes
  92. AS51007AS5100721 prefixes
  93. AS203936AS20393621 prefixes
  94. AS206657AS20665721 prefixes
  95. AS42130AS4213021 prefixes
  96. AS199496AS19949620 prefixes
  97. AS29680AS2968020 prefixes
  98. AS41541AS4154120 prefixes
  99. AS202503AS20250320 prefixes
  100. AS200555AS20055520 prefixes

Sampled IP addresses

A sample of IPv4 addresses hosted in Spain’s largest networks. Each links to its full infrastructure profile.

Top registrars

Registrars seen most often across a sample of domains hosted in Spain’s largest networks. A sampled estimate, not a country-wide total.

  1. iana:2111 sampled
  2. iana:37963 sampled
  3. iana:30346 sampled
  4. iana:11344 sampled
  5. iana:126222 sampled
  6. iana:81817 sampled
  7. iana:69617 sampled
  8. iana:8315 sampled
  9. iana:138312 sampled
  10. iana:14011 sampled

Threat density

IPv4 addresses registered in Spain that appear on at least one threat feed.

93listed IPs (snapshot Tue, 09 Jun 2026 12:00:44 GMT)

Related pages

Every directory page links to related entities so you (and crawlers) can pivot through the graph.

Cypher and MCP

Reproduce the headline metric directly against graph.whisper.security:

MATCH (a:ASN)-[:HAS_COUNTRY]->(c:COUNTRY {name: "ES"})
RETURN count(DISTINCT a) AS asn_count

Or query Whisper from your own LLM workflow via the Whisper MCP server.