Top organizations by netblock count

The largest organisations in our index, ranked by number of registered netblocks. Last computed 2026-11-01.

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
701 InterLIR LLC 567
702 FR-MAIRIE--LB_INTERNET 567
703 FR-ORANGE--LB_INTERNET 566
704 Corbina Telecom AS48438 564
705 JSC "Ufanet" 561
706 BEDGE CO LIMITED 560
707 WorldStream B.V. GLEIF verified 560
708 Hydra Communications Ltd GLEIF verified 558
709 RETELIT-X S.R.L. ORG-RS521-RIPE 557
710 InterBS S.R.L. (BAEHOST) 556
711 Melbikomas UAB 555
712 Desktop Sigmanet Comunicação Multimídia SA 554
713 netcup GmbH GLEIF verified 554
714 Telecentro S.A. 552
715 Vodafone Romania S.A. GLEIF verified 551
716 HOS-794811 551
717 VODAFONE-DYN-IP 549
718 Movitel, SA 549
719 Accenture LLP GLEIF verified 549
720 Nova Telecommunications & Media Single Member S.A GLEIF verified 546
721 PUNTONET S.A. 545
722 Neterra Ltd. 542
723 MTN Rwandacell ORG-MTN1-AFRINIC 542
724 Hrvatski Telekom d.d. GLEIF verified 542
725 Cyberzone S.A. GLEIF verified 541
726 GTHost 541
727 TIANJIN Provincial Net of CT 540
728 NTTCINS 539
729 CONG-TY-TNHH-GIAI-PHAP-MAY-CHU-VIETNAM 538
730 nestle 536
731 Afilias, Inc. GLEIF verified 536
732 Vox Telecom Ltd GLEIF verified 536
733 IE-RIPPLECOM 535
734 SARAASSICURAZIONISPA 535
735 Hong Kong Broadband Network Limited GLEIF verified 534
736 Anexia Cloud Solutions GmbH GLEIF verified 533
737 x_GRAD_BEOGRAD_GRADSKA_UPRAVA_GRADA_x 533
738 vodafone-Data-Routes 533
739 Core-Backbone GmbH GLEIF verified 531
740 Internet Thailand Company Ltd. 530
741 Telecom Argentina S.A. GLEIF verified 529
742 Ethio Telecom GLEIF verified 528
743 ASLINE LIMITED 528
744 ONEZEROZEROZEROS 528
745 SKYLINKNET-BD 527
746 FIRSTNET SA GLEIF verified 526
747 TOKALA COMMUNICATIONS INC. GLEIF verified 524
748 Trossamfundet Svenska Kyrkan GLEIF verified 524
749 TELEFONICA GLEIF verified 524
750 Planetel Nordest SRL ORG-TS13-RIPE 523
751 GENERALIOPERATIONSSERVICEPLATFORMSRL 522
752 HOS-468873 521
753 GENOTEC-DHS 521
754 Unica Telecomunicazioni s.r.l. ORG-UTS8-RIPE 521
755 Fortinet Inc. GLEIF verified 519
756 Branch of Netnam Company in Ho Chi Minh City 519
757 CETINDOO-NET 518
758 WebStream llc GLEIF verified 518
759 COLT Technology Services Group Limited GLEIF verified 517
760 MTN SA GLEIF verified 517
761 Hargray Communications Group, Inc. GLEIF verified 516
762 PT Remala Abadi 516
763 GENOTEC-DHS-IPV6 516
764 Bell DSL Internet Ontario 516
765 VISIBLE-ALPHA-LLC GLEIF verified 514
766 Nos Communications GLEIF verified 513
767 FR-PROXAD-WIFI 512
768 Singapore Telecommunications Ltd, Magix Services 512
769 SoftBank Mobile Corp. 511
770 Horry Telephone Cooperative, Inc. 509
771 Optimum international co GLEIF verified 509
772 ZONETEL-INTERNET 509
773 IPX - FZCO 508
774 Company 65b37b600Ckqg4YI 508
775 L295P3403 507
776 AIRESPRING, INC. 507
777 NForce Entertainment B.V. 507
778 DIS KK GLEIF verified 506
779 TWT-CUST-P-106932 506
780 RAWAFED 505
781 Huawei 505
782 Next Limited GLEIF verified 505
783 SIFYNET 505
784 TDC-BREDBAANDS-TELEFONI 504
785 ECO-D1102623-NET 504
786 Aussie Fibre Pty Ltd 504
787 UK-PRIVAX-20120608 504
788 CANTV Servicios, Venezuela 503
789 TRACESRL 502
790 RACKTECH CO., LTD. 501
791 ONLINE TELECOMUNICACOES LTDA 500
792 INNOVASPA 499
793 ATELEKOMAUST-HWY-AT 499
794 kbro CO. Ltd. 498
795 DB3 SERVICOS DE TELECOMUNICACOES S.A 498
796 L64858 498
797 ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES LTDA 496
798 Ziggo Services B.V. 495
799 TerraTransit AG GLEIF verified 495
800 NWTBB-HK 495
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