Top organizations by netblock count

The largest organisations in our index, ranked by number of registered netblocks. Last computed 2026-07-06.

# Organisation Attribution Netblocks
801 Speedsurf 480
802 Belize Telemedia Limited 480
803 FASTWEB-INTERNET-MOA 479
804 Cafe-AFGHANTELECOM-AF 479
805 BOD 479
806 FTTH TELECOM 477
807 Partner Communications Ltd. GLEIF verified 476
808 Shared Services Canada 475
809 Volvo Information Technology AB 474
810 Equidity Technologies LLC 472
811 KATER TELECOMUNICACOES 472
812 Webzilla B.V. 472
813 NTT PC Communications, Inc. 472
814 MIROGLIOSPA 470
815 HOS-219294 470
816 TPx Communications 470
817 FASTMOS CO., LIMITED 469
818 Telecommunicationcompany Suriname - TeleSur 469
819 FR-U-GIE-IRIS--LB_INTERNET 468
820 PJSC MegaFon ORG-OM1-RIPE 468
821 VITEBSK-BYFLY 466
822 GIS INTERNET 466
823 FBFIVEZEROZERO 465
824 ALT / GRUPO BRASIL TECPAR 465
825 BLACKSMITH SOFTWARE INC BLACKSMITH-SOFTWARE-INC 464
826 PlusServer GmbH GLEIF verified 464
827 Quality Service Provider BV 464
828 ST-NET-NL 462
829 VISIBLE-ALPHA-LLC GLEIF verified 462
830 HOS-585343 461
831 ORG-De8-RIPE 459
832 Fortinet Inc. GLEIF verified 459
833 CLOUVIDER-HB-CLIENT-2916 457
834 E-Commerce Park, N.V. 457
835 XTRA TELECOM S.A. 457
836 Core-Backbone GmbH GLEIF verified 456
837 CDNetworks Russia 456
838 REXEL FRANCE SASU 455
839 FR-CNAF 455
840 EDIS GmbH GLEIF verified 453
841 Multiplay UK Ltd 453
842 Telecom Argentina S.A. GLEIF verified 452
843 WoodyNet, Inc. 451
844 JSC Avantel GLEIF verified 451
845 Under Servicos de Internet Ltda 451
846 Quality Net General Trading & Contracting Company 451
847 Connectivity Amber 450
848 TRAFFIC STARS LTD TRAFFIC-STARS-LTD 450
849 LGA-iFibrePre-SG 450
850 Starbow Ltd. 449
851 China Education and Research Network (CERNET) 449
852 RITUALS-COSMETICS-ENTERPRISE-B-V-RETAIL-GTT 448
853 Classic Communications GLEIF verified 448
854 G-Core Labs S.A. ORG-WIG6-RIPE 448
855 STARNETMD 448
856 SINGNET-PTE-SG 445
857 PT Mora Telematika Indonesia 444
858 Desktop Sigmanet Comunicação Multimídia SA 444
859 F5, Inc. 443
860 DXTNET 443
861 Mobilink GSM, Pakistan Mobile Communication Ltd. 443
862 HOS-694574 442
863 Open Fiber S.P.A. GLEIF verified 442
864 Hydra Communications Ltd GLEIF verified 442
865 GPON_FTTH_SERVICES 442
866 Netflix Inc GLEIF verified 442
867 BRASIL DIGITAL SERVIÇOS DE INFORMATICA E COMERCIO 441
868 Chiron Management Company Limited 441
869 ASTRAZENECASPA 441
870 ENGEPLUS INFORMATICA LTDA 440
871 Skycorp S.A. 440
872 TURKCELL ILETISIM HIZMETLERI A.S. GLEIF verified 440
873 FR-GIE-AXA-TECHNOLOGY-SERVICES-FRANCE--LB_INTERNET 439
874 Horry Telephone Cooperative, Inc. 439
875 Gradwell Communications Limited ORG-GDCL2-RIPE 438
876 Coreix Ltd 437
877 ECO-D4417584-NET 436
878 Sharktech Inc. 435
879 RICH-AUDIENCE-TECHNOLOGIES-SL 435
880 INTERNEXA S.A. E.S.P 435
881 Hot-Net internet services Ltd. 435
882 PROXXIMA TELECOMUNICACOES SA 434
883 Rackspace Hosting GLEIF verified 433
884 Manquehuenet 433
885 ING Bank N.V. GLEIF verified 432
886 IT_HOST_BKPL 431
887 Cable Tica GLEIF verified 431
888 Inteliglobe USA, Inc. 430
889 Cyberia 430
890 Telefonica de Costa Rica TC, SA GLEIF verified 429
891 Scalaxy B.V. 427
892 Qnet LLC 426
893 FASTNET DATA INC 426
894 LLC Vpsville 426
895 LLC "KomTehCentr" 425
896 China Telecom Next Generation Carrier Network 424
897 THUNDERNET, C.A. 424
898 SAP SE GLEIF verified 423
899 SOK 422
900 DIS KK GLEIF verified 421
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