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
101 Shenzhen Tencent Computer Systems Company Limited GLEIF verified 3,477
102 Vodafone Data 3,464
103 HostRoyale Technologies Pvt Ltd 3,461
104 Korea Telecom 3,436
105 Claro NXT Telecomunicacoes Ltda GLEIF verified 3,431
106 Oxylabs, UAB 3,412
107 metro_ethernet_alsat_coklu_IP 3,369
108 GINERNET S.L. GINERNET 3,322
109 NONE 3,320
110 NINENINENINES 3,312
111 FR-CREDIT-AGRICOLE-TECHNOLOGIES--LB_INTERNET 3,309
112 O2 Czech Republic, a.s. ORG-STaN1-RIPE 3,255
113 ORG-FDiS1-RIPE 3,238
114 GLOBALCONNECT AS ORG-BNA1-RIPE 3,217
115 AAPT Limited GLEIF verified 3,211
116 Alibaba (US) Technology Co., Ltd. 3,210
117 IPP-L-CUST-LINKS 3,156
118 a79700936 3,155
119 Lyse Tele AS ORG-LEA1-RIPE 3,151
120 Bharat Sanchar Nigam Ltd GLEIF verified 3,148
121 Mega Cable, S.A. de C.V. 3,134
122 Tata Communications Limited GLEIF verified 3,128
123 Transtelco Inc GLEIF verified 3,089
124 MIKRK_GCHP 3,041
125 FR-CARREFOUR-SYSTEMES-D-INFORMATION--LB_INTERNET 3,017
126 Techtel LMDS Comunicaciones Interactivas S.A. 2,993
127 TOTAL PLAY TELECOMUNICACIONES, S.A.P.I. DE C.V. GLEIF verified 2,942
128 No.31,Jin-rong Street 2,932
129 Direct Communications Cable LLC 2,889
130 DIGI ROMANIA S.A. ORG-RA18-RIPE 2,846
131 ABONENTMGTS-MINSK 2,805
132 Clouvider Limited 2,797
133 Free SAS ORG-PISP1-RIPE 2,761
134 SimbaNET_TZ_1 2,759
135 GTT Communications Inc. GLEIF verified 2,758
136 Telstra International Limited GLEIF verified 2,686
137 NOERDNET-KUNDEPREFIX 2,683
138 HGC Global Communications Limited GLEIF verified 2,678
139 MAYBANK KIM ENG SECURITIES PTE. LTD 2,642
140 Fluency Communications Ltd GLEIF verified 2,628
141 TRIOLAN 2,628
142 Deutsche Telekom AG GLEIF verified 2,607
143 GSSGENERALISHAREDSERVICESSCARL 2,600
144 SMARTLYIO-SOLUTIONS-OY GLEIF verified 2,597
145 Kcell JSC GLEIF verified 2,594
146 CNCGROUP IP network of ShangHai IDC 2,585
147 Fastly, Inc. GLEIF verified 2,584
148 Apple Inc. GLEIF verified 2,574
149 Rogers Communications Canada Inc. GLEIF verified 2,571
150 CUP2000SPA 2,565
151 Reliance Jio Infocomm Limited GLEIF verified 2,542
152 Zenlayer Inc GLEIF verified 2,519
153 Orange S.A. GLEIF verified 2,510
154 HOS-369046 2,506
155 EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC GLEIF verified 2,496
156 NL-SNEL 2,481
157 TELEFÔNICA BRASIL S.A GLEIF verified 2,465
158 LGTELECOM 2,436
159 FR-CREDIT-LYONNAIS--LB_INTERNET 2,429
160 KCOM Group Limited ORG-MI5-RIPE 2,358
161 Hutchison Drei Austria GmbH ORG-CAGf1-RIPE 2,357
162 JSC "TIMEWEB" 2,355
163 Servers.com, Inc. 2,344
164 Telconet S.A 2,322
165 China Telecom (Group) GLEIF verified 2,320
166 Zayo Bandwidth GLEIF verified 2,286
167 American Data Networks 2,258
168 Sify Limited 2,233
169 iiNetLimited 2,208
170 Royal Thai Armed Force Headquarters 2,183
171 LG HelloVision Corp. 2,180
172 ADVANCED WIRELESS NETWORK COMPANY LIMITED ORG-AWNC1-AP 2,179
173 Cogeco Cable Canada Inc. 2,172
174 Convergence Group (Wireless) Networks Limited ORG-MML1-RIPE 2,160
175 Internet Vikings International AB GLEIF verified 2,145
176 Dimension Data GLEIF verified 2,117
177 SK Broadband Co Ltd GLEIF verified 2,087
178 OCULUS NETWORKS INC 2,080
179 NTT America, Inc. GLEIF verified 2,079
180 FBONEZERO 2,073
181 Signet B.V. GLEIF verified 2,047
182 PACIFIC-INTERNET-BB 2,046
183 PJSC MegaFon GLEIF verified 2,035
184 Wave Broadband 2,029
185 TE-AS 2,027
186 Beam-CLIPS-PPPoE 2,024
187 MTS PJSC GLEIF verified 2,011
188 B3G-SANS-CLS 2,010
189 Aptum Technologies (UK) Limited 2,001
190 SFR-USER-DATA 1,990
191 HKBNCORP 1,981
192 Team Blue Carrier Limited ORG-PIS3-RIPE 1,962
193 TOT Public Company Limited ORG-TPCL1-AP 1,956
194 RO-RCS-RDS 1,945
195 Tele2 Sverige AB ORG-TA44-RIPE 1,942
196 V tal 1,924
197 Sunrise GmbH GLEIF verified 1,921
198 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 1,919
199 Instituto Costarricense de Electricidad y Telecom. 1,914
200 BEYON B.S.C. 1,905
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