The measurement activities below track different aspects of IPv6 deployment on the global Internet. The different measurements show various dimensions of the answer to the question of how broadly IPv6 is being used on the global Internet. The tables, charts, and links provide answers to questions such as: which websites have enabled IPv6, how many visitors to a specific website are using IPv6, how many networks have significant IPv6 deployment, and how much traffic at an Internet exchange is using IPv6?


Network operator measurements, 10th March 2021

To understand our IPv6 Deployment metric, please read the notes below. Results are ranked by overall traffic volume. Click on Participating Network name to view a longitudinal deployment graph for that network.

Rank Participating Network ASN(s) IPv6 deployment
1 RELIANCE JIO INFOCOMM LTD 55836, 64049 91.44%
2 Comcast 7015, 7016, 7725, 7922, 11025, 13367, 13385, 20214, 21508, 22258, 22909, 33287, 33489, 33490, 33491, 33650, 33651, 33652, 33653, 33654, 33655, 33656, 33657, 33659, 33660, 33661, 33662, 33664, 33665, 33666, 33667, 33668, 36732, 36733 73.22%
3 Combined US Mobile Carriers 3651, 6167, 10507, 20057, 21928, 22394 87.06%
4 Charter Communications 7843, 10796, 11351, 11426, 11427, 12271, 20001, 20115, 33363 53.66%
5 ATT 6389, 7018, 7132 75.24%
6 T-Mobile USA 21928 92.41%
7 Deutsche Telekom AG 3320 69.63%
8 TELMEX 8151 55.39%
9 Claro Brasil 4230, 28573 69.24%
10 KDDI 2516 63.88%
11 Viettel Group 7552 55.99%
12 Verizon Wireless 6167, 22394 83.36%
13 Orange Business Services 3215 67.58%
14 Cox Communications 22773 61.84%
15 British Sky Broadcasting 5607 85.53%
16 Vivo 10429, 11419, 18881, 19182, 26599, 27699 66.13%
17 Liberty Global 5089, 6830, 20825, 29562 29.19%
18 SoftBank 17676 54.25%
19 AT&T Wireless 20057 83.52%
20 BT 2856, 25127 65.20%
21 Saudi Telecom Company (STC) 25019, 31177, 39386, 39891, 41426 46.24%
22 Free 12322 87.94%
23 VNPT 45899 37.05%
24 Rogers Communications 812, 20453 74.01%
25 Chunghwa Telecom (Mobile) 17421 90.15%
26 OTE SA 6799 78.22%
27 PJSC Mobile TeleSystems 8359, 28884, 29497, 35473, 39811 71.77%
28 Telekom Malaysia 4788 43.43%
29 TELUS 852 61.60%
30 Chunghwa Telecom (HiNet) 3462, 9680, 17419 28.66%
31 KPN 1136, 2043, 5615, 8737, 13111, 21286, 59524 52.91%
32 Mega Cable 13999 35.95%
33 Fastweb Spa 12874 42.75%
34 Belgacom 5432 56.51%
35 Telenet 6848 73.54%
36 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 76.59%
37 Telecentro S.A. 27747 73.80%
38 Maxis Broadband Sdn Bhd 9534 56.65%
39 RCS & RDS 8708 35.21%
40 TIM Brasil 26615 58.39%
41 Orange Poland 5617, 43447 35.45%
42 FPT Telecom 18403 32.16%
43 Swisscom 3303, 6837 52.32%
44 MTC-Mobile Telecommunications Company-Zain-KSA 43766 44.21%
45 kt 4766 11.08%
46 Mediacom Communications 30036 55.07%
47 Chubu Telecommunications 18126 63.71%
48 DNA 16086 70.17%
49 Vodafone Portugal 12353 55.89%
50 Telenor Nordic 2119 24.42%
51 EE 12576 47.15%
52 SKTelecom 9644 60.42%
53 Elisa 719 49.38%
54 Google Fiber 16591 45.67%
55 Dialog Axiata PLC 18001 58.31%
56 StarHub 4657, 55430 44.63%
57 eircom 5466 60.58%
58 O2 Czech Republic 5610 44.32%
59 Forthnet 1241 64.35%
60 NTT Docomo 9605 11.69%
61 VOO 12392 78.08%
62 Telefonica del Peru 6147 9.18%
63 Sunrise Communications AG 5426, 6730, 9214 46.20%
64 3 Scandinavia 44034 66.26%
65 Bell Canada Wireline 577 7.92%
66 Midcontinent Communications 11232 48.74%
67 Hughes Network Systems 6621 77.32%
68 Verizon Communications Inc. 701, 702 1.74%
69 Tele2 AB 1257 9.96%
70 PT. TELKOMSEL 23693 3.29%
71 STNet 7522 55.48%
72 Copel Telecomunicacoes S/A 14868 53.41%
73 Hyperoptic 56478 76.19%
74 Xfone 018 47956 52.16%
75 Cosmote Mobile Telecommunications S.A 29247 81.15%
76 VM OPENLINK/Sumicity 28210 49.35%
77 XS4ALL 3265 74.44%
78 Elion 3249 50.15%
79 DIRECTV COLOMBIA LTDA 262928 70.83%
80 M1 Limited 4773, 17547 25.14%
81 Digicel Trinidad & Tobago 27800 66.15%
82 Deutsche Glasfaser 60294 43.63%
83 WorldLink Communications Pvt Ltd 17501 29.78%
84 Altibox AS 29695 13.71%
85 its communications Inc.(iTSCOM) 9365 32.43%
86 Mytel (Telecom International Myanmar Co., Ltd.) 136255 73.59%
87 CloudFlare, Inc. 13335 34.15%
88 OVH 16276 3.78%
89 inexio KGaA 42652 59.67%
90 EPT Luxembourg 6661 58.90%
91 Mob Telecom 28598 48.26%
92 YTL Communications Sdn Bhd 45960 56.32%
93 Er-Telecom 9049, 12768, 31363, 31483, 31692, 34533, 34590, 39028, 39435, 41661, 41668, 41682, 41727, 41733, 41754, 41786, 41843, 41854, 42116, 42682, 42683, 43478, 47659, 49048, 50498, 50512, 50542, 50543, 50544, 51035, 51570, 51604, 51645, 51819, 52207, 56330, 56377, 56420, 56981, 57026, 57044, 57378, 59713 6.33%
94 Sky Italia 210278 77.87%
95 TekSavvy Solutions 5645 13.18%
96 T-Mobile Czech Republic, a.s. 13036 13.16%
97 TARR Kft. 8462 45.65%
98 MediaCat Div./Community Netowork Center Inc. 17529 51.03%
99 Comteco Ltda 27839 47.90%
100 BH Telecom d.d. Sarajevo 9146 20.62%
101 Cablevisión Fibertel 10318 3.49%
102 Companhia de Telecomunicações de Macau S.A.R.L. 4609 12.17%
103 ZeelandNet 15542 33.04%
104 Sri Lanka Telecom PLC 9329 10.86%
105 Community Fibre Ltd. 201838 84.25%
106 Net Barretos 262983 51.96%
107 IPLAN 16814 25.00%
108 China Mobile 9808, 24059, 24400, 24444, 24445, 24547, 38019, 45120, 56040, 56041, 56042, 56044, 56045, 56046, 56047, 56048, 132525, 134810, 136755 38.20%
109 BVNET S.A. 27833 47.17%
110 Nettel Telecomunicações Ltda 53135 66.01%
111 Internode 4739 4.82%
112 Justweb Telecomunicacoes LTDA 264552 51.13%
113 Mhnet Telecom 28146 10.62%
114 Liquid Telecommunications 30844, 30969 11.45%
115 Janet 786 5.23%
116 Sonera 1759 2.04%
117 MDlink GmbH 43341 43.75%
118 GNC Alfa CJSC 49800 21.79%
119 Solcon 12414 13.91%
120 UNINETT 224 31.25%
121 Choopa, LLC 20473 2.96%
122 Indiana University 87 60.51%
123 Orange Moldova 25454 32.08%
124 Centurylink 209 0.15%
125 Virginia Tech 1312 85.97%
126 SURFnet 1103 15.15%
127 TNET PARTICIPAÇÕES INTERNET 263655 26.09%
128 NET.COM TELECOMUNICAÇÕES LTDA EPP 28131 68.81%
129 Georgia Institute of Technology 2637 75.18%
130 China Unicom 4808, 4837, 9800, 9929, 17621, 17622, 17623, 17816, 63836, 63837, 133118, 133119, 134542, 134543, 135061, 136958, 136959 20.04%
131 University of Minnesota 57, 217 73.51%
132 CESNET 2852 22.73%
133 Unetvale 53175 53.75%
134 Hurricane Electric 6939 0.63%
135 Sea Net 53222 49.72%
136 Cisco 109 63.34%
137 ARNES 2107 41.24%
138 Bredband2 AB 29518 1.86%
139 University of Iowa 3676 55.62%
140 Premier Communications 53347 30.42%
141 Alcom 3238 41.64%
142 Init7 13030 24.13%
143 BelWue 553 10.23%
144 GLBB Japan 55900 13.00%
145 Coriolis Telecom 60032 25.82%
146 China Telecom 4134, 4809, 4812, 4816, 4835, 4847, 17638, 23650, 23724, 38283, 58461, 58466, 58539, 58540, 58541, 58542, 58543, 58563, 63835, 63836, 131325, 133774, 133775, 133776, 134238, 134418, 134419, 134420, 134756, 134761, 134762, 134763, 134764, 134765, 134766, 134768, 134769, 134770, 134771, 134772, 136188, 136190, 136191, 136192, 136193, 136194, 136195, 137687 3.36%
147 Cabo Telecom 28220 3.28%
148 University of Buffalo 3685 74.56%
149 Get AS, Norway 25400, 41164, 47853, 49455, 51135 0.56%
150 University of Pennsylvania 55 77.72%
151 NineStar Connect 11525 20.42%
152 Voax Provedor de Internet 53093 21.85%
153 University of Vermont 1351 76.44%
154 University of South Florida 5661 73.67%
155 Belnet 2611 5.70%
156 MD Brasil Ti & Telecom 28657 36.01%
157 Instituto Costarricense de Electricidad y Telecomunicaciones 11830 0.53%
158 Bhutan Telecom 17660, 18024, 18025 12.52%
159 RedIRIS 766 2.09%
160 SWITCH 559 12.64%
161 kwaoo.com 24904 10.04%
162 Kasetsart University 9411 39.21%
163 Skymesh 7477 19.05%
164 Jiří štrohalm 197307 47.66%
165 Louisiana State University 2055 5.56%
166 University of Twente 1133 76.60%
167 Marist College 6124 73.96%
168 UniNet 4621 3.91%
169 Certto Telecomunicações 28130 10.69%
170 D-Vois Broadband Pvt. Ltd. 45769 0.56%
171 NYNEX satellite OHG 62023, 200519 72.41%
172 MonkeyBrains 32329 10.96%
173 Deakin University 7645 67.47%
174 AAISP 20712 36.82%
175 NIIF/Hungarnet 1955 8.16%
176 Bangalore Broadband Network Pvt Ltd 55947 1.39%
177 Karlsruhe Institute of Technology (KIT) 34878 66.00%
178 Storm Internet 13319 14.46%
179 Portal Itaipu 262841 41.91%
180 PAM Pepe Antenas Telecomunicações e Multimidia Ltda ME 263388 25.29%
181 FirstDigital Telecom 13415 4.68%
182 Speedyway 265185 13.16%
183 Gesatel - Villa Gesell Televisión Comunitaria S.A. 263834 33.81%
184 Electronic Box 1403 0.95%
185 iway AG 8758 3.10%
186 edpnet 9031 2.23%
187 National Informatics Centre 4758 2.73%
188 Airtek Solutions 61461 0.58%
189 Leibniz Supercomputing Centre 12816 4.35%
190 Gustavus Adolphus College 17234 90.67%
191 Rensselaer Polytechnic Institute 91 82.49%
192 Tulane University 10349 36.84%
193 Gotalandsnatet AB 12597 23.63%
194 SoftLayer Technologies 36351 0.51%
195 Micro Logic Systems 56055 3.78%
196 Sikkanet - Gomti Cable and Broadband 45942 3.29%
197 PoP-SP RNP 1916 4.08%
198 RENATER 2200 0.95%
199 Niss Broadband 132774 6.70%
200 GARR 137 2.20%
201 Vmax Net Telecomunicacoes do Brasil 28277 2.17%
202 University of California, San Diego 7377 13.56%
203 FCCN 1930 9.58%
204 Aristotle University of Thessaloniki 5470 66.01%
205 RESTENA 2602 6.02%
206 Waverly Utilities 20298 16.06%
207 Foxx Provider Telecom ME 264084 22.61%
208 Cape Connect Internet (Pty) Ltd 37640 45.59%
209 BV Networks 53190 1.72%
210 FranTech Solutions 53667 1.90%
211 Obenetwork AB 197595 9.95%
212 University of California, Los Angeles 52 6.23%
213 AMRES - Serbian National Research and Education Network 13092 2.24%
214 TDC Sverige AB 3292 0.37%
215 University Of Hawaii System 6360 15.65%
216 UNET 29396 4.01%
217 JIFFY CABLE AND DATACOM 134944 33.53%
218 A DO NASCIMENTO SANTOS INFORMATICA ME 267343 3.85%
219 Funet 1741 2.99%
220 MaineREN - University of Maine System 557 2.33%
221 Universidad de Guadalajara 2549 32.17%
222 green.ch AG 1836 2.07%
223 Brno University of Technology 197451 28.07%
224 Saturno Comunicações Ltda 262784 2.25%
225 CZ.NIC 25192 68.43%
226 Australian Academic and Research Network (AARNet) 7575 1.16%
227 PT.MEDIA SARANA DATA(GMEDIA) 55666 1.99%
228 guifi.net 49835 7.58%
229 Amber IT Limited 23956 1.29%
230 Gdlicanet 28408 32.75%
231 GITN Sdn Berhad 38044 2.80%
232 TUBITAK ULAKBIM / ULAKNET 8517 0.29%
233 Defense Research and Engineering Network 668 6.86%
234 CNGI-CERNET2/6IX 23910, 23911 100.00%
235 CENIC / CalREN 2152, 2153 0.30%
236 UFSCar 52888 53.02%
237 Atlas Networks 21743 6.13%
238 Viva Tecnologia Telecom 266413 12.98%
239 ENTANET International Ltd. 8468 0.37%
240 Association tetaneutral.net 197422 62.27%
241 UNESP 53166 19.54%
242 LENTEL 44030 0.82%
243 Exponential-e 25180 0.39%
244 Colt 8220 0.30%
245 Sistemas Fratec S.A. 262149 36.66%
246 University of Wisconsin - Madison 59 0.71%
247 SPAWAR 22 58.44%
248 Ponto de Presença da RNP na Bahia 53164 6.53%
249 PoP-RS 2716 3.40%
250 JT 8681 0.27%
251 Universidade Federal de Santa Catarina 263300 19.42%
252 ARCKANET Internet Services 29727 42.19%
253 NetAssist 29632 5.45%
254 Grenode 51083 60.57%
255 SpeedWeb Telecom 262896 16.82%
256 Makonix 52173 2.94%
257 MARK-ITT 3226 1.55%
258 University of the Philippines Diliman 23862 19.74%
259 Vescnet 262792 5.56%
260 HEAnet 1213 0.83%
261 Cybernet1 21632 2.07%
262 Chalmers Studentbostäder 48514 4.20%
263 Zapelini & Cia. Ltda 263018 26.99%
264 Trunk Networks Limited 49375 54.10%
265 Free University of Bozen-Bolzano 51708 52.07%
266 Universidade Estadual de Ponta Grossa 53046 83.79%
267 CESCA 13041 0.67%
268 The Kansas Research and Education Network 2495 2.70%
269 DreamHost 26347 56.56%
270 PT Pasifik Satelit Nusantara 9875 2.28%
271 KaseNet 199087 11.11%
272 PowerTech Information Systems AS 5381 86.58%
273 AT BROADBAND PVT LTD 135876 1.19%
274 Critical Colocation 52342 90.30%
275 Fundacao Parque Tecnologico Itaipu - Brasil 263083 71.82%
276 ADDIX Internet Services 25415 2.28%
277 Xirra GmbH 51191 60.60%
278 Host Virtual, Inc 36236 15.88%
279 DegNet GmbH 20902 19.51%
280 Greek Research & Technology Network 5408 0.55%
281 Claranet 8426 0.22%
282 SuomiCom 16302 1.36%
283 Thammasat University 37992 2.87%
284 Entel 6471, 27925 5.54%
285 Solido Networks ApS 12617 10.77%
286 Maxiweb Internet Provider 28140 3.70%
287 PCextreme B.V. 48635 30.30%
288 SouthTech Telecom 25933 0.27%
289 LITNET 2847 0.41%
290 Interlan Networks AB 43065 8.90%
291 Aptus Solutions 37349 1.23%
292 Complex Computers sp. z o.o. sp. k. 196890 10.83%
293 Mythic Beasts Ltd 44684 31.60%
294 Thor Datacenter 50613 41.67%
295 Common Networks, Inc. 397046 0.43%
296 Sudanese Research and Education Network 37197 18.67%
297 National Technical University of Athens 3323 4.08%
298 Region 7 ESC 30350 4.83%
299 Jaguar Network 30781 0.16%
300 ICT Valle Umbra 15605 0.57%
301 prgmr.com 47066 18.41%
302 PREGINET 9821 0.26%
303 Etop sp. z o.o. / DataHouse.Pl 20853 11.25%
304 Southern Online Bio Technologies Limited 17771 0.45%
305 BIT BV 12859 0.85%
306 Voxity 57103 12.97%
307 Konecta de Mexico 262913 0.55%
308 Sota Solutions Ltd 31742 2.17%
309 SuperCSI 2506 54.99%
310 ATM S.A. 15694 0.29%
311 CICA/Junta de Andalucía 198096 0.50%
312 Zvezda Telecom 21367 0.33%
313 University of Macedonia 12364 33.31%
314 FX Networks 9503 0.12%
315 BDCOM ONLINE LIMITED 7565, 24122 0.11%
316 NETIS TELECOM 25592 0.84%
317 Signet B.V. 28878 0.15%
318 VentraIP Group (Australia) Pty Ltd 45638 54.24%
319 Bogons Ltd 3213 5.01%
320 Faculdade de Ciências Aplicadas da Unicamp 53187 2.32%
321 Universidad Panamericana 13679 59.63%
322 MarwaN 30983 0.32%
323 HOTlink Internet 28661 0.54%
324 IKS GmbH 15725 25.17%
325 AEPROVI 27814 56.70%
326 S.P.E.Sistemi e Progetti Elettronici s.a.s. 49640 18.19%
327 PAPANET REDESUL INTERNET 61688 2.23%
328 Altitud S.r.l. 57111 0.43%
329 TCA INFORMATICA LTDA 53137 0.15%
330 NBI Systems (NBIS) Ltd. 39396 2.56%
331 Titânia Telecom 262526 0.34%
332 UNBORN NETWORKS PRIVATE LIMITED 136644 6.70%
333 Netwerkvereniging Coloclue 8283 37.65%
334 BendTel Inc. 27008 0.70%
335 HOSTLINE, UAB 198651 21.58%
336 SupraNet Communications, Inc 4150 0.58%
337 Digital Pacific Pty Ltd 55803 1.68%
338 Sauk Valley Community College 13953 90.45%
339 SuperInternet Access Pte Ltd 4844 0.78%
340 Universidade Federal do Rio Grande do Sul 19200 1.35%
341 DataChambers 29765 4.64%
342 Monash University 56132 35.60%
343 EGATE Networks Inc. 13657 0.21%
344 iNES Group 12310 0.21%
345 ITsjefen AS 44381 0.60%
346 Netnod 8674 27.57%
347 RAU - UdelaR 1797 1.74%
348 Jolokia Networks? 12182 0.56%
349 Bulgaria NREN 6802 0.59%
350 EUserv Internet 35366 51.18%
351 Blue Networks Technologies 50620 5.55%
352 US Dept of Transportation 2576 0.44%
353 SIDN 1140 64.17%
354 Energy Group Networks 18779 0.19%
355 Freethought Internet Limited 41000 23.46%
356 NedZone Internet BV 25459 1.14%
357 Dr.-Ing. Nepustil & Co. GmbH 12502 0.65%
358 Alhambra Eidos 15450 2.65%
359 NineWire Pty LTd 132020 94.64%
360 Prolocation 41887 0.16%
361 manitu GmbH 34240 13.85%
362 NYI 11403 2.60%
363 Utility Line Italia srl 9026 0.50%
364 Zimcom Internet Solutions, Inc 30059 0.90%
365 Remex Consulting Pty Limited 55328 15.48%
366 achermann consulting ag 43291 1.62%
367 AMS-IX 1200 53.30%
368 MAEHDROS 49677 1.11%
369 Quonix Networks 17185 1.97%
370 Flying Man Studio, LLC. 393941 33.10%
371 Datahata Ltd 56740 8.89%
372 snowflake productions gmbh 198249 91.17%
373 Luna.nl BV 12902 1.29%


Percentage of Alexa Top 1000 websites currently reachable over IPv6

Measurements every hour from AS35425


IPv6 traffic volume at AMS-IX




Other measurement sites and tools


Notes on network operator measurements

We present measurements of network operator participants in World IPv6 Launch, based on data received from major website participants, as described in more detail below. We present a simple average of the data received, and list all networks with measurements from at least two sources, with a simple average above 0.1%. The network operator participants list includes some networks that measured above the threshold leading up to June 6th 2012, but for which we have insufficient measurement data to list here.

Akamai: We are reporting adoption rates based on the percentage of IPv6 requests we receive to a selection of dual-stacked properties on Akamai's content, site, and application delivery platform. The hundreds of billions of IPv4 and IPv6 requests analyzed across a 24-hour window represent traffic to a diverse set of customer sites across various industries, geographies, and user populations.

APNIC: APNIC recruits random measurements of IPv6 capability and preference through advertisements placed in web sites worldwide. The advert runs specially crafted HTML5/Javascript and measures a range of properties across wired, wireless and cellular networks. Per-Economy and Per-ASN daily totals are calculated through the RIR delegation stats and daily BGP dumps to map origin-as and economy of registration of each tested clients IP addresses. The measurement has run continuously since 2010 and currently collects around 10 million samples per day. Further information is available here.

Facebook: On June 6th, we examined page loads from randomly selected users. For each user we are able to test if they are using IPv6 to communicate with Facebook. We also know which ISP (World IPv6 Launch participant) they are using at their location. After collecting all data for June 6th, we calculated the percent of unique IPv6 users out of total unique users we saw from each ISP. Many millions of page loads were in our 24-hour data capture for these statistics.

Google: We measure IPv6 adoption among Google users by adding measurement JavaScript to a random sample of visits to various Google properties. The methodology is similar to that described in our paper, Evaluating IPv6 adoption in the Internet. The JavaScript uses HTTP to fetch a URL from an IPv4-only hostname and a URL from a dual-stack hostname, in random order, and then reports the results. The measurement is attributed to the ASN that originates the user's IPv4 address. Measurement endpoints use the same infrastructure that serve regular Google traffic.