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, 8th September 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 91.22%
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 71.95%
3 Combined US Mobile Carriers 3651, 6167, 10507, 20057, 21928, 22394 87.26%
4 Charter Communications 7843, 10796, 11351, 11426, 11427, 12271, 20001, 20115, 33363 52.79%
5 ATT 6389, 7018, 7132 70.33%
6 T-Mobile USA 21928 91.64%
7 Deutsche Telekom AG 3320 71.68%
8 KDDI 2516 66.87%
9 Claro Brasil 4230, 28573 71.49%
10 Verizon Wireless 6167, 22394 83.67%
11 TELMEX 8151 63.10%
12 Orange Business Services 3215 69.46%
13 Viettel Group 7552 54.51%
14 Vivo 10429, 11419, 18881, 19182, 26599, 27699 67.55%
15 SoftBank 17676 51.81%
16 British Sky Broadcasting 5607 82.71%
17 Cox Communications 22773 59.89%
18 AT&T Wireless 20057 84.49%
19 Saudi Telecom Company (STC) 25019, 31177, 39386, 39891, 41426 48.93%
20 BT 2856, 25127 66.86%
21 Free 12322 88.09%
22 VNPT 45899 38.17%
23 Rogers Communications 812, 20453 76.56%
24 Chunghwa Telecom (Mobile) 17421 90.47%
25 OTE SA 6799 74.44%
26 TELUS 852 62.51%
27 Telekom Malaysia 4788 43.99%
28 Chunghwa Telecom (HiNet) 3462, 9680, 17419 28.74%
29 PJSC Mobile TeleSystems 8359, 28884, 29497, 35473, 39811 70.47%
30 FPT Telecom 18403 38.19%
31 KPN 1136, 2043, 5615, 8737, 13111, 21286, 59524 62.03%
32 Mega Cable 13999 43.17%
33 Telenet 6848 75.32%
34 Belgacom 5432 57.07%
35 Liberty Global 5089, 6830, 20825, 29562 16.52%
36 Telecentro S.A. 27747 75.94%
37 Fastweb Spa 12874 41.41%
38 Maxis Broadband Sdn Bhd 9534 60.17%
39 RCS & RDS 8708 38.41%
40 kt 4766 13.32%
41 TIM Brasil 26615 57.68%
42 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 78.27%
43 Etihad Etisalat Company (Mobily) 35819 26.42%
44 Mediacom Communications 30036 54.28%
45 Orange Poland 5617, 43447 40.89%
46 MTC-Mobile Telecommunications Company-Zain-KSA 43766 39.90%
47 Swisscom 3303, 6837 50.27%
48 EE 12576 56.01%
49 LG TELECOM 17853 47.63%
50 Dialog Axiata PLC 18001 59.82%
51 Chubu Telecommunications 18126 60.89%
52 Telenor Nordic 2119 25.37%
53 DNA 16086 72.20%
54 StarHub 4657, 55430 44.15%
55 Elisa 719 52.40%
56 Vodafone Portugal 12353 54.19%
57 SKTelecom 9644 58.68%
58 Midcontinent Communications 11232 57.90%
59 Telefonica del Peru 6147 10.09%
60 Forthnet 1241 62.11%
61 Google Fiber 16591 37.55%
62 O2 Czech Republic 5610 48.83%
63 3 Scandinavia 44034 74.39%
64 eircom 5466 62.88%
65 Bell Canada Wireline 577 9.92%
66 Cosmote Mobile Telecommunications S.A 29247 84.82%
67 VOO 12392 75.65%
68 NTT Docomo 9605 10.34%
69 PT. TELKOMSEL 23693 3.73%
70 Hughes Network Systems 6621 73.98%
71 Sunrise Communications AG 5426, 6730, 9214 37.65%
72 Verizon Communications Inc. 701, 702 1.77%
73 Tele2 AB 1257 26.07%
74 WorldLink Communications Pvt Ltd 17501 38.26%
75 STNet 7522 51.59%
76 Copel Telecomunicacoes S/A 14868 56.19%
77 CloudFlare, Inc. 13335 29.05%
78 VM OPENLINK/Sumicity 28210 55.66%
79 Hyperoptic 56478 74.32%
80 Mytel (Telecom International Myanmar Co., Ltd.) 136255 63.57%
81 Altibox AS 29695 17.13%
82 Xfone 018 47956 55.26%
83 M1 Limited 4773, 17547 22.29%
84 Digicel Trinidad & Tobago 27800 67.40%
85 Globe Telecom 4775 2.00%
86 Elion 3249 48.54%
87 XS4ALL 3265 75.47%
88 OVH 16276 14.67%
89 Deutsche Glasfaser 60294 46.57%
90 its communications Inc.(iTSCOM) 9365 36.09%
91 TRIPLET BROADBAND 45758 35.67%
92 Sky Italia 210278 77.52%
93 Mob Telecom 28598 45.70%
94 YTL Communications Sdn Bhd 45960 50.34%
95 EPT Luxembourg 6661 59.42%
96 DIRECTV COLOMBIA LTDA 262928 58.65%
97 inexio KGaA 42652 55.49%
98 Comteco Ltda 27839 44.83%
99 PT Telekomunikasi Indonesia 7713 0.92%
100 China Mobile 9808, 24059, 24400, 24444, 24445, 24547, 38019, 45120, 56040, 56041, 56042, 56044, 56045, 56046, 56047, 56048, 132525, 134810, 136755 46.42%
101 MediaCat Div./Community Netowork Center Inc. 17529 48.16%
102 BH Telecom d.d. Sarajevo 9146 30.80%
103 Tele2 Kazakhstan, Altel Kazakhstan 29555, 48503 15.31%
104 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 5.38%
105 TekSavvy Solutions 5645 13.32%
106 TARR Kft. 8462 49.93%
107 Community Fibre Ltd. 201838 83.10%
108 IPLAN 16814 39.22%
109 Net Barretos 262983 55.75%
110 T-Mobile Czech Republic, a.s. 13036 9.85%
111 Companhia de Telecomunicações de Macau S.A.R.L. 4609 13.14%
112 ZeelandNet 15542 30.47%
113 Nettel Telecomunicações Ltda 53135 71.14%
114 Sri Lanka Telecom PLC 9329 9.76%
115 BVNET S.A. 27833 51.09%
116 Internode 4739 34.77%
117 China Unicom 4808, 4837, 9800, 9929, 17621, 17622, 17623, 17816, 63836, 63837, 133118, 133119, 134542, 134543, 135061, 136958, 136959 28.05%
118 Mhnet Telecom 28146 10.58%
119 Justweb Telecomunicacoes LTDA 264552 56.61%
120 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 13.99%
121 Hurricane Electric 6939 5.54%
122 Liquid Telecommunications 30844, 30969 11.95%
123 Indiana University 87 75.06%
124 GLBB Japan 55900 18.13%
125 NET.COM TELECOMUNICAÇÕES LTDA EPP 28131 76.19%
126 Sonera 1759 1.65%
127 Unetvale 53175 51.42%
128 MDlink GmbH 43341 45.04%
129 Orange Moldova 25454 26.19%
130 Sea Net 53222 53.93%
131 GNC Alfa CJSC 49800 22.43%
132 Solcon 12414 13.58%
133 University of Minnesota 57, 217 80.62%
134 Centurylink 209 0.15%
135 Virginia Tech 1312 87.93%
136 Certto Telecomunicações 28130 31.48%
137 Subisu Cablenet Pvt .Ltd. 4007 7.15%
138 University of Iowa 3676 70.44%
139 Georgia Institute of Technology 2637 69.68%
140 Premier Communications 53347 27.36%
141 UNINETT 224 20.84%
142 TNET PARTICIPAÇÕES INTERNET 263655 29.88%
143 University of Buffalo 3685 77.80%
144 Cabo Telecom 28220 3.64%
145 Choopa, LLC 20473 9.15%
146 Instituto Costarricense de Electricidad y Telecomunicaciones 11830 0.76%
147 CESNET 2852 23.24%
148 University of Pennsylvania 55 85.83%
149 Bredband2 AB 29518 1.81%
150 Cisco 109 61.58%
151 Coriolis Telecom 60032 20.73%
152 Janet 786 3.77%
153 Alcom 3238 41.44%
154 NIIF/Hungarnet 1955 15.30%
155 Init7 13030 28.41%
156 NineStar Connect 11525 21.29%
157 Voax Provedor de Internet 53093 26.67%
158 PAM Pepe Antenas Telecomunicações e Multimidia Ltda ME 263388 47.87%
159 University of Vermont 1351 63.12%
160 Skymesh 7477 17.52%
161 VTR Banda Acha 22047 0.21%
162 BelWue 553 13.12%
163 ARNES 2107 42.29%
164 Bhutan Telecom 17660, 18024, 18025 12.81%
165 SURFnet 1103 3.06%
166 Bangalore Broadband Network Pvt Ltd 55947 1.92%
167 Vmax Net Telecomunicacoes do Brasil 28277 29.98%
168 Marist College 6124 74.74%
169 Get AS, Norway 25400, 41164, 47853, 49455, 51135 0.45%
170 University of Twente 1133 77.57%
171 Belnet 2611 7.58%
172 kwaoo.com 24904 11.09%
173 Louisiana State University 2055 15.94%
174 NYNEX satellite OHG 62023, 200519 67.82%
175 Speedyway 265185 14.40%
176 Rensselaer Polytechnic Institute 91 74.43%
177 FirstDigital Telecom 13415 3.57%
178 Jiří štrohalm 197307 57.86%
179 FranTech Solutions 53667 16.92%
180 Jaguar Network 30781 5.72%
181 Storm Internet 13319 14.93%
182 D-Vois Broadband Pvt. Ltd. 45769 0.36%
183 TCA INFORMATICA LTDA 53137 9.01%
184 SWITCH 559 5.59%
185 MonkeyBrains 32329 5.23%
186 Leibniz Supercomputing Centre 12816 17.11%
187 Gesatel - Villa Gesell Televisión Comunitaria S.A. 263834 37.61%
188 Micro Logic Systems 56055 6.90%
189 AAISP 20712 28.44%
190 edpnet 9031 2.79%
191 RENATER 2200 2.22%
192 Gustavus Adolphus College 17234 84.52%
193 Saturno Comunicações Ltda 262784 10.63%
194 Karlsruhe Institute of Technology (KIT) 34878 69.96%
195 PoP-SP RNP 1916 5.03%
196 FCCN 1930 7.28%
197 RedIRIS 766 2.68%
198 SoftLayer Technologies 36351 0.31%
199 Electronic Box 1403 0.99%
200 Deakin University 7645 55.80%
201 Niss Broadband 132774 6.68%
202 iway AG 8758 3.77%
203 Portal Itaipu 262841 36.62%
204 Australian Academic and Research Network (AARNet) 7575 2.80%
205 University of California, San Diego 7377 11.81%
206 Cape Connect Internet (Pty) Ltd 37640 41.17%
207 CENIC / CalREN 2152, 2153 1.37%
208 JIFFY CABLE AND DATACOM 134944 61.21%
209 GARR 137 1.87%
210 Gotalandsnatet AB 12597 13.49%
211 Kasetsart University 9411 20.92%
212 University of California, Los Angeles 52 10.60%
213 MaineREN - University of Maine System 557 3.33%
214 University Of Hawaii System 6360 13.80%
215 RESTENA 2602 14.09%
216 Sikkanet - Gomti Cable and Broadband 45942 2.27%
217 Funet 1741 3.48%
218 ICT Valle Umbra 15605 12.04%
219 BV Networks 53190 8.37%
220 Greek Research & Technology Network 5408 4.43%
221 CZ.NIC 25192 90.90%
222 Universidad de Guadalajara 2549 26.43%
223 Foxx Provider Telecom ME 264084 13.02%
224 UniNet 4621 4.31%
225 Cooperativa Telefónica de Villa Gdor. Galvez Ltda. 11815 3.36%
226 National Informatics Centre 4758 3.23%
227 Aristotle University of Thessaloniki 5470 65.06%
228 FasterNet Internet Service Provider 28580 0.27%
229 TeliaSonera International Carrier 1299 1.59%
230 A DO NASCIMENTO SANTOS INFORMATICA ME 267343 5.38%
231 Amber IT Limited 23956 1.27%
232 Universidade Federal de Santa Catarina 263300 41.10%
233 green.ch AG 1836 3.93%
234 MARK-ITT 3226 3.79%
235 UFSCar 52888 65.09%
236 Trunk Networks Limited 49375 47.96%
237 UNET 29396 2.78%
238 CNGI-CERNET2/6IX 23910, 23911 83.33%
239 HEAnet 1213 2.46%
240 Sistemas Fratec S.A. 262149 55.66%
241 Maxiweb Internet Provider 28140 4.17%
242 Brno University of Technology 197451 25.76%
243 Atlas Networks 21743 9.53%
244 guifi.net 49835 8.86%
245 Ponto de Presença da RNP na Bahia 53164 8.63%
246 UNESP 53166 33.23%
247 Colt 8220 0.23%
248 ADDIX Internet Services 25415 4.43%
249 Airtek Solutions 61461 0.17%
250 University of Wisconsin - Madison 59 3.62%
251 Universidade Estadual de Ponta Grossa 53046 84.11%
252 Universidad Panamericana 13679 90.92%
253 SPAWAR 22 67.27%
254 Fundacao Parque Tecnologico Itaipu - Brasil 263083 84.42%
255 Defense Research and Engineering Network 668 7.75%
256 Exponential-e 25180 0.28%
257 SpeedWeb Telecom 262896 20.85%
258 LENTEL 44030 3.06%
259 ENTANET International Ltd. 8468 0.27%
260 VentraIP Group (Australia) Pty Ltd 45638 82.57%
261 AMRES - Serbian National Research and Education Network 13092 4.08%
262 DreamHost 26347 53.74%
263 GITN Sdn Berhad 38044 1.13%
264 Gdlicanet 28408 32.08%
265 Zapelini & Cia. Ltda 263018 11.72%
266 KaseNet 199087 19.13%
267 Viva Tecnologia Telecom 266413 4.95%
268 PoP-RS 2716 2.69%
269 SuomiCom 16302 2.16%
270 Cybernet1 21632 1.74%
271 ARCKANET Internet Services 29727 21.51%
272 National Technical University of Athens 3323 29.10%
273 Association tetaneutral.net 197422 47.91%
274 Xirra GmbH 51191 64.77%
275 PAPANET REDESUL INTERNET 61688 9.19%
276 Free University of Bozen-Bolzano 51708 37.11%
277 Tulane University 10349 13.07%
278 interscholz Internet Services GmbH & Co. KG 33843 54.88%
279 PowerTech Information Systems AS 5381 78.27%
280 UNBORN NETWORKS PRIVATE LIMITED 136644 22.19%
281 JT 8681 0.46%
282 PT.MEDIA SARANA DATA(GMEDIA) 55666 0.29%
283 TUBITAK ULAKBIM / ULAKNET 8517 0.26%
284 AT BROADBAND PVT LTD 135876 0.96%
285 Makonix 52173 20.35%
286 SouthTech Telecom 25933 0.28%
287 Sauk Valley Community College 13953 93.14%
288 PT Pasifik Satelit Nusantara 9875 1.74%
289 Active Network S.p.A. 197075 1.18%
290 Grenode 51083 43.06%
291 Chalmers Studentbostäder 48514 2.21%
292 EUserv Internet 35366 67.39%
293 Zvezda Telecom 21367 0.65%
294 Critical Colocation 52342 86.94%
295 Claranet 8426 0.21%
296 CESCA 13041 0.39%
297 prgmr.com 47066 18.88%
298 BIT BV 12859 0.97%
299 Interlan Networks AB 43065 6.67%
300 NTT Communications 2914 0.14%
301 Konecta de Mexico 262913 0.41%
302 University of Macedonia 12364 48.36%
303 LITNET 2847 0.60%
304 Host Virtual, Inc 36236 9.12%
305 Thammasat University 37992 2.16%
306 The Kansas Research and Education Network 2495 0.33%
307 Sudanese Research and Education Network 37197 17.90%
308 Voxity 57103 13.30%
309 Signet B.V. 28878 0.13%
310 BDCOM ONLINE LIMITED 7565, 24122 0.12%
311 BendTel Inc. 27008 1.07%
312 RTComm.RU ISP 8342 2.96%
313 Southern Online Bio Technologies Limited 17771 0.19%
314 Universidad de Ibague 52467 15.49%
315 Aptus Solutions 37349 0.38%
316 ATM S.A. 15694 0.41%
317 Complex Computers sp. z o.o. sp. k. 196890 6.30%
318 Sota Solutions Ltd 31742 1.48%
319 MarwaN 30983 0.56%
320 Quonix Networks 17185 13.82%
321 University of New Hampshire 11745 0.15%
322 NetAssist 29632 0.19%
323 Masterradius Telecom 262465 2.24%
324 SuperInternet Access Pte Ltd 4844 1.38%
325 NBI Systems (NBIS) Ltd. 39396 1.63%
326 Netwerkvereniging Coloclue 8283 40.46%
327 Region 7 ESC 30350 1.92%
328 achermann consulting ag 43291 4.22%
329 Bogons Ltd 3213 0.89%
330 manitu GmbH 34240 41.94%
331 Radiográfica Costarricense 3790 1.10%
332 HOTlink Internet 28661 0.27%
333 IKS GmbH 15725 17.40%
334 S.P.E.Sistemi e Progetti Elettronici s.a.s. 49640 7.67%
335 Centro di Produzione Spa 57329 25.57%
336 RAU - UdelaR 1797 1.59%
337 Digital Pacific Pty Ltd 55803 0.33%
338 Energy Group Networks 18779 0.23%
339 Altitud S.r.l. 57111 0.29%
340 iNES Group 12310 0.17%
341 Dr.-Ing. Nepustil & Co. GmbH 12502 0.67%
342 CCTBB Conicet Bahia Blanca 28109 27.29%
343 SIDN 1140 65.28%
344 Zimcom Internet Solutions, Inc 30059 2.30%
345 GOLINE SA 202032 21.67%
346 Utility Line Italia srl 9026 0.79%
347 AMS-IX 1200 67.95%
348 Jolokia Networks? 12182 0.22%
349 snowflake productions gmbh 198249 91.15%
350 Luna.nl BV 12902 2.40%


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.