Top organizations by netblock count

The largest organisations in our index, ranked by number of registered netblocks. Last computed 2026-09-06.

This ranks individual registry-name clusters. Where one organisation holds space under several different names, browse organisation entities to see them grouped.

# Organisation Attribution Netblocks
801 Equinix, Inc. GLEIF verified 473
802 NTT PC Communications, Inc. 472
803 FASTMOS CO., LIMITED 472
804 FR-U-GIE-IRIS--LB_INTERNET 472
805 VITEBSK-BYFLY 472
806 HOS-219294 470
807 MIROGLIOSPA 470
808 AS8048 469
809 Rackspace Hosting GLEIF verified 469
810 Volvo Information Technology AB 469
811 PJSC MegaFon ORG-OM1-RIPE 468
812 Partner Communications Ltd. GLEIF verified 466
813 PlusServer GmbH GLEIF verified 465
814 FR-CNAF 465
815 FBFIVEZEROZERO 465
816 BLACKSMITH SOFTWARE INC BLACKSMITH-SOFTWARE-INC 464
817 ST-NET-NL 463
818 KABINET 463
819 AS28202 463
820 AS18678 462
821 GPON_FTTH_SERVICES 462
822 ORG-De8-RIPE 462
823 LPP 461
824 HOS-585343 461
825 Quality Service Provider BV 461
826 Air Force Systems Networking 460
827 OCTOPUS WEB SOLUTION INC 460
828 REXEL FRANCE SASU 459
829 XTRA TELECOM S.A. 458
830 F5, Inc. 457
831 CDNetworks Russia 457
832 SINGNET-PTE-SG 456
833 InterLIR LLC 455
834 Quality Net General Trading & Contracting Company 454
835 Mobilink GSM, Pakistan Mobile Communication Ltd. 453
836 Internet Utilities NA LLC 453
837 Hot-Net internet services Ltd. 453
838 China Education and Research Network (CERNET) 453
839 JSC Avantel GLEIF verified 452
840 NSS S.A. GLEIF verified 452
841 Clarity Telecom LLC GLEIF verified 452
842 Open Fiber S.P.A. GLEIF verified 450
843 G-Core Labs S.A. ORG-WIG6-RIPE 450
844 LGA-iFibrePre-SG 450
845 EDIS GmbH GLEIF verified 449
846 Starbow Ltd. 449
847 Beanfield Technologies Inc. GLEIF verified 449
848 LLC Vpsville 448
849 STARNETMD 448
850 PT Mora Telematika Indonesia 447
851 LLC "KomTehCentr" 447
852 Accenture UK Limited GLEIF verified 447
853 China Telecom Next Generation Carrier Network 446
854 Netflix Inc GLEIF verified 446
855 Misaka Network, Inc. 445
856 Chiron Management Company Limited 445
857 AS272809 445
858 DXTNET 443
859 BroadbandONE, LLC 443
860 Tose'h Fanavari Ertebabat Pasargad Arian Co. PJS 443
861 HP Inc. 443
862 HOS-694574 442
863 AS14259 442
864 ASTRAZENECASPA 441
865 AS27843 441
866 FR-GIE-AXA-TECHNOLOGY-SERVICES-FRANCE--LB_INTERNET 440
867 GIS Technologies LLC 438
868 Gradwell Communications Limited ORG-GDCL2-RIPE 438
869 TURKCELL ILETISIM HIZMETLERI A.S. GLEIF verified 438
870 ALIEN GAIN OUE ALIEN-GAIN-OUE 437
871 Sharktech Inc. 437
872 OVH BE 436
873 ECO-D4417584-NET 436
874 Coreix Ltd 436
875 RICH-AUDIENCE-TECHNOLOGIES-SL 435
876 Kamatera, Inc. 434
877 Syrian Telecommunication Private Closed Joint Stock Company 433
878 Xplore Inc. GLEIF verified 432
879 RoyaleHosting BV 432
880 IT_HOST_BKPL 431
881 AS11888 430
882 Cyberia 430
883 Scancom Limited GLEIF verified 429
884 Fidelity Communication International Inc. 429
885 SUPERLOOP (AUSTRALIA) PTY LTD GLEIF verified 428
886 Netplus Broadband Services Private Limited GLEIF verified 427
887 DIS KK GLEIF verified 427
888 AS52228 427
889 AS27738 426
890 Zoom Video Communications, Inc GLEIF verified 426
891 Qnet LLC 425
892 AS28548 425
893 SOK 424
894 AS28403 424
895 Gilat Telecom Ltd. 423
896 National Bank Limited , Head Office 423
897 a38762501 423
898 Primus Telecommunications Canada Inc. GLEIF verified 422
899 FASTWEB-GPON 421
900 Tier.Net Technologies LLC 421
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