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, 13th January 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 Combined US Mobile Carriers 3651, 6167, 10507, 20057, 21928, 22394 87.29%
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 76.30%
3 RELIANCE JIO INFOCOMM LTD 55836, 64049 92.87%
4 Charter Communications 7843, 10796, 11351, 11426, 11427, 12271, 20001, 20115, 33363 55.48%
5 T-Mobile USA 21928 92.63%
6 ATT 6389, 7018, 7132 77.42%
7 Verizon Wireless 6167, 22394 83.66%
8 TELMEX 8151 56.29%
9 Deutsche Telekom AG 3320 72.08%
10 AT&T Wireless 20057 84.21%
11 Cox Communications 22773 63.11%
12 British Sky Broadcasting 5607 87.23%
13 Claro Brasil 4230, 28573 67.41%
14 Orange Business Services 3215 68.03%
15 Vivo 10429, 11419, 18881, 19182, 26599, 27699 66.40%
16 BT 2856, 25127 65.42%
17 Liberty Global 5089, 6830, 20825, 29562 25.82%
18 Free 12322 88.67%
19 Viettel Group 7552 57.71%
20 Saudi Telecom Company (STC) 25019, 31177, 39386, 39891, 41426 43.88%
21 KDDI 2516 66.56%
22 Rogers Communications 812, 20453 77.60%
23 Mega Cable 13999 42.34%
24 SoftBank 17676 55.21%
25 VNPT 45899 38.28%
26 PJSC Mobile TeleSystems 8359, 28884, 29497, 35473, 39811 71.20%
27 TELUS 852 61.91%
28 Telekom Malaysia 4788 44.26%
29 Fastweb Spa 12874 44.18%
30 Telenet 6848 76.08%
31 Telecentro S.A. 27747 75.36%
32 Belgacom 5432 59.95%
33 OTE SA 6799 79.86%
34 KPN 1136, 2043, 5615, 8737, 13111, 21286, 59524 39.88%
35 Chunghwa Telecom (Mobile) 17421 90.03%
36 Swisscom 3303, 6837 57.64%
37 TIM Brasil 26615 63.89%
38 Maxis Broadband Sdn Bhd 9534 57.84%
39 Mediacom Communications 30036 56.38%
40 EE 12576 47.62%
41 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 78.39%
42 Chunghwa Telecom (HiNet) 3462, 9680, 17419 28.95%
43 RCS & RDS 8708 37.03%
44 Telenor Nordic 2119 24.42%
45 FPT Telecom 18403 32.18%
46 Orange Poland 5617, 43447 33.92%
47 Google Fiber 16591 47.53%
48 Vodafone Portugal 12353 52.42%
49 Mytel (Telecom International Myanmar Co., Ltd.) 136255 65.87%
50 DNA 16086 61.73%
51 StarHub 4657, 55430 45.70%
52 Sunrise Communications AG 5426, 6730, 9214 48.25%
53 eircom 5466 63.62%
54 Midcontinent Communications 11232 58.65%
55 Elisa 719 49.53%
56 VOO 12392 78.98%
57 Bell Canada Wireline 577 9.10%
58 Dialog Axiata PLC 18001 58.32%
59 kt 4766 8.73%
60 Chubu Telecommunications 18126 64.66%
61 3 Scandinavia 44034 66.83%
62 Forthnet 1241 61.43%
63 Verizon Communications Inc. 701, 702 1.83%
64 O2 Czech Republic 5610 44.14%
65 Tele2 AB 1257 7.94%
66 Telefonica del Peru 6147 5.13%
67 Hughes Network Systems 6621 78.52%
68 Hyperoptic 56478 77.82%
69 Copel Telecomunicacoes S/A 14868 53.37%
70 PT. TELKOMSEL 23693 2.18%
71 WorldLink Communications Pvt Ltd 17501 28.48%
72 VM OPENLINK/Sumicity 28210 50.73%
73 XS4ALL 3265 78.61%
74 Xfone 018 47956 57.55%
75 NTT Docomo 9605 11.70%
76 Deutsche Glasfaser 60294 44.68%
77 Cosmote Mobile Telecommunications S.A 29247 86.38%
78 Altibox AS 29695 11.78%
79 MTC-Mobile Telecommunications Company-Zain-KSA 43766 10.32%
80 DIRECTV COLOMBIA LTDA 262928 68.78%
81 Digicel Trinidad & Tobago 27800 65.88%
82 inexio KGaA 42652 64.36%
83 M1 Limited 4773, 17547 25.44%
84 OVH 16276 1.89%
85 EPT Luxembourg 6661 59.20%
86 SKTelecom 9644 1.24%
87 CloudFlare, Inc. 13335 40.02%
88 Elion 3249 50.31%
89 Internode 4739 21.57%
90 YTL Communications Sdn Bhd 45960 59.67%
91 Mob Telecom 28598 43.62%
92 STNet 7522 56.24%
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 7.08%
94 China Mobile 9808, 24059, 24400, 24444, 24445, 24547, 38019, 45120, 56040, 56041, 56042, 56044, 56045, 56046, 56047, 56048, 132525, 134810, 136755 32.74%
95 TekSavvy Solutions 5645 13.75%
96 Comteco Ltda 27839 53.23%
97 Cablevisión Fibertel 10318 3.84%
98 Sky Italia 210278 83.53%
99 T-Mobile Czech Republic, a.s. 13036 12.71%
100 its communications Inc.(iTSCOM) 9365 32.73%
101 Community Fibre Ltd. 201838 86.51%
102 ZeelandNet 15542 32.48%
103 Net Barretos 262983 52.38%
104 BVNET S.A. 27833 47.11%
105 BH Telecom d.d. Sarajevo 9146 19.93%
106 IPLAN 16814 29.87%
107 Companhia de Telecomunicações de Macau S.A.R.L. 4609 13.66%
108 TARR Kft. 8462 47.35%
109 Nettel Telecomunicações Ltda 53135 63.29%
110 Sri Lanka Telecom PLC 9329 11.52%
111 MediaCat Div./Community Netowork Center Inc. 17529 47.37%
112 Justweb Telecomunicacoes LTDA 264552 46.90%
113 SURFnet 1103 3.23%
114 Orange Moldova 25454 30.61%
115 Sonera 1759 2.14%
116 MDlink GmbH 43341 46.76%
117 Mhnet Telecom 28146 11.60%
118 Choopa, LLC 20473 2.05%
119 GNC Alfa CJSC 49800 19.53%
120 Solcon 12414 13.51%
121 Janet 786 6.92%
122 Centurylink 209 0.18%
123 Liquid Telecommunications 30844, 30969 11.93%
124 China Unicom 4808, 4837, 9800, 9929, 17621, 17622, 17623, 17816, 63836, 63837, 133118, 133119, 134542, 134543, 135061, 136958, 136959 13.96%
125 Cisco 109 61.54%
126 TNET PARTICIPAÇÕES INTERNET 263655 32.04%
127 NET.COM TELECOMUNICAÇÕES LTDA EPP 28131 74.04%
128 Bredband2 AB 29518 3.62%
129 Premier Communications 53347 30.16%
130 Unetvale 53175 53.07%
131 UNINETT 224 14.61%
132 Sea Net 53222 44.93%
133 Init7 13030 26.90%
134 Georgia Institute of Technology 2637 70.72%
135 CESNET 2852 26.38%
136 Skymesh 7477 33.71%
137 BelWue 553 16.25%
138 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 1.77%
139 Coriolis Telecom 60032 16.70%
140 Alcom 3238 41.91%
141 Get AS, Norway 25400, 41164, 47853, 49455, 51135 0.65%
142 University of Minnesota 57, 217 69.89%
143 NineStar Connect 11525 19.60%
144 kwaoo.com 24904 12.17%
145 Bhutan Telecom 17660, 18024, 18025 16.07%
146 Cabo Telecom 28220 3.12%
147 MD Brasil Ti & Telecom 28657 34.02%
148 University of South Florida 5661 56.44%
149 Faroese Telecom 15389 10.82%
150 Belnet 2611 8.43%
151 NIIF/Hungarnet 1955 17.19%
152 Certto Telecomunicações 28130 14.02%
153 Indiana University 87 48.51%
154 University of Pennsylvania 55 85.20%
155 PAM Pepe Antenas Telecomunicações e Multimidia Ltda ME 263388 48.93%
156 Voax Provedor de Internet 53093 20.18%
157 Gesatel - Villa Gesell Televisión Comunitaria S.A. 263834 33.43%
158 Instituto Costarricense de Electricidad y Telecomunicaciones 11830 0.46%
159 Louisiana State University 2055 30.82%
160 AAISP 20712 33.88%
161 GLBB Japan 55900 7.60%
162 University of Twente 1133 81.67%
163 D-Vois Broadband Pvt. Ltd. 45769 0.53%
164 SWITCH 559 7.65%
165 Virginia Tech 1312 80.42%
166 Storm Internet 13319 14.15%
167 MonkeyBrains 32329 8.88%
168 Electronic Box 1403 0.36%
169 Jiří štrohalm 197307 61.92%
170 NYNEX satellite OHG 62023, 200519 84.29%
171 iway AG 8758 3.60%
172 FirstDigital Telecom 13415 5.47%
173 University of Iowa 3676 31.60%
174 RedIRIS 766 2.62%
175 FCCN 1930 6.70%
176 edpnet 9031 2.69%
177 Portal Itaipu 262841 9.09%
178 SoftLayer Technologies 36351 0.41%
179 UniNet 4621 1.87%
180 Karlsruhe Institute of Technology (KIT) 34878 66.40%
181 Speedyway 265185 11.42%
182 Gotalandsnatet AB 12597 27.02%
183 ARNES 2107 31.96%
184 Niss Broadband 132774 8.24%
185 Gustavus Adolphus College 17234 84.86%
186 Vmax Net Telecomunicacoes do Brasil 28277 12.77%
187 Leibniz Supercomputing Centre 12816 10.67%
188 Kasetsart University 9411 33.27%
189 University of California, San Diego 7377 11.73%
190 Sikkanet - Gomti Cable and Broadband 45942 0.86%
191 PoP-SP RNP 1916 5.43%
192 University of Buffalo 3685 75.24%
193 Common Networks, Inc. 397046 18.70%
194 GARR 137 2.22%
195 Micro Logic Systems 56055 4.37%
196 Waverly Utilities 20298 27.80%
197 Obenetwork AB 197595 10.34%
198 A DO NASCIMENTO SANTOS INFORMATICA ME 267343 15.99%
199 Tulane University 10349 19.92%
200 PT.MEDIA SARANA DATA(GMEDIA) 55666 3.15%
201 Funet 1741 3.90%
202 RESTENA 2602 7.79%
203 Cape Connect Internet (Pty) Ltd 37640 52.18%
204 Viva Tecnologia Telecom 266413 21.91%
205 Brno University of Technology 197451 33.58%
206 University of California, Los Angeles 52 5.35%
207 green.ch AG 1836 3.54%
208 Deakin University 7645 67.95%
209 UNET 29396 3.88%
210 Foxx Provider Telecom ME 264084 13.75%
211 University Of Hawaii System 6360 15.54%
212 RENATER 2200 0.90%
213 National Informatics Centre 4758 2.84%
214 Aristotle University of Thessaloniki 5470 80.77%
215 JIFFY CABLE AND DATACOM 134944 25.04%
216 University of Vermont 1351 45.43%
217 DreamHost 26347 8.02%
218 Atlas Networks 21743 9.32%
219 Amber IT Limited 23956 0.49%
220 National Knowledge Network 9885, 55824, 55847 0.25%
221 LENTEL 44030 4.50%
222 TUBITAK ULAKBIM / ULAKNET 8517 0.75%
223 ENTANET International Ltd. 8468 0.38%
224 GITN Sdn Berhad 38044 1.39%
225 NetAssist 29632 4.68%
226 Universidad de Guadalajara 2549 17.07%
227 guifi.net 49835 8.18%
228 MARK-ITT 3226 1.31%
229 KaseNet 199087 21.35%
230 Defense Research and Engineering Network 668 7.89%
231 Universidade Federal de Santa Catarina 263300 34.82%
232 CZ.NIC 25192 78.51%
233 Rensselaer Polytechnic Institute 91 58.12%
234 UNESP 53166 23.64%
235 ARCKANET Internet Services 29727 57.32%
236 CENIC / CalREN 2152, 2153 0.65%
237 Colt 8220 0.26%
238 Ponto de Presença da RNP na Bahia 53164 7.47%
239 Marist College 6124 61.91%
240 JT 8681 0.39%
241 AMRES - Serbian National Research and Education Network 13092 1.68%
242 MaineREN - University of Maine System 557 1.21%
243 Sistemas Fratec S.A. 262149 43.72%
244 FranTech Solutions 53667 0.15%
245 Host Virtual, Inc 36236 25.82%
246 Fundacao Parque Tecnologico Itaipu - Brasil 263083 85.48%
247 University of Wisconsin - Madison 59 0.86%
248 Grenode 51083 54.21%
249 Airtek Solutions 61461 0.50%
250 Association tetaneutral.net 197422 53.68%
251 PoP-RS 2716 6.01%
252 Australian Academic and Research Network (AARNet) 7575 1.32%
253 SPAWAR 22 42.16%
254 Trunk Networks Limited 49375 35.05%
255 Cybernet1 21632 3.10%
256 Zapelini & Cia. Ltda 263018 19.80%
257 Free University of Bozen-Bolzano 51708 31.46%
258 PCextreme B.V. 48635 3.18%
259 SpeedWeb Telecom 262896 20.88%
260 Gdlicanet 28408 52.45%
261 PowerTech Information Systems AS 5381 88.72%
262 Universidade Estadual de Ponta Grossa 53046 85.60%
263 Solido Networks ApS 12617 10.88%
264 The Kansas Research and Education Network 2495 2.50%
265 Makonix 52173 5.51%
266 Vescnet 262792 4.10%
267 National Technical University of Athens 3323 19.47%
268 Critical Colocation 52342 87.88%
269 Chalmers Studentbostäder 48514 3.48%
270 HEAnet 1213 1.20%
271 University of the Philippines Diliman 23862 12.52%
272 Claranet 8426 0.14%
273 CESCA 13041 0.66%
274 Maxiweb Internet Provider 28140 3.10%
275 SuomiCom 16302 1.47%
276 Mythic Beasts Ltd 44684 33.83%
277 DegNet GmbH 20902 19.13%
278 SouthTech Telecom 25933 0.33%
279 Aptus Solutions 37349 1.52%
280 Xirra GmbH 51191 38.71%
281 AT BROADBAND PVT LTD 135876 0.65%
282 UNAM 278 5.16%
283 VentraIP Group (Australia) Pty Ltd 45638 63.43%
284 Sudanese Research and Education Network 37197 13.88%
285 PT Pasifik Satelit Nusantara 9875 2.43%
286 TCA INFORMATICA LTDA 53137 0.25%
287 NetNam Corporation 24173 0.18%
288 Interlan Networks AB 43065 7.37%
289 Southern Online Bio Technologies Limited 17771 0.66%
290 BIT BV 12859 1.13%
291 Bogons Ltd 3213 5.92%
292 Blue Networks Technologies 50620 14.38%
293 Faculdade de Ciências Aplicadas da Unicamp 53187 3.66%
294 Konecta de Mexico 262913 0.82%
295 Complex Computers sp. z o.o. sp. k. 196890 7.94%
296 Etop sp. z o.o. / DataHouse.Pl 20853 13.75%
297 UFSCar 52888 8.55%
298 LITNET 2847 0.38%
299 Region 7 ESC 30350 2.73%
300 Voxity 57103 18.29%
301 CICA/Junta de Andalucía 198096 0.43%
302 ATM S.A. 15694 0.24%
303 Oquei Provedor 262761 0.21%
304 University of Macedonia 12364 60.09%
305 iNES Group 12310 0.25%
306 S.P.E.Sistemi e Progetti Elettronici s.a.s. 49640 12.22%
307 Thammasat University 37992 1.76%
308 Zvezda Telecom 21367 0.31%
309 PREGINET 9821 0.12%
310 Sauk Valley Community College 13953 85.68%
311 NBI Systems (NBIS) Ltd. 39396 1.49%
312 ICT Valle Umbra 15605 0.35%
313 NETIS TELECOM 25592 0.52%
314 Cooperativa Telefónica de Villa Gdor. Galvez Ltda. 11815 0.11%
315 MarwaN 30983 0.42%
316 HOTlink Internet 28661 0.77%
317 Signet B.V. 28878 0.17%
318 Sota Solutions Ltd 31742 2.45%
319 Netnod 8674 27.80%
320 Energy Group Networks 18779 0.15%
321 Freethought Internet Limited 41000 27.56%
322 Netwerkvereniging Coloclue 8283 53.89%
323 Universidade Federal do Rio Grande do Sul 19200 2.52%
324 Academic Scientific Research Computer Network of Armenia (ASNET-AM) 47623 4.81%
325 University of New Hampshire 11745 0.24%
326 BendTel Inc. 27008 1.15%
327 Bulgaria NREN 6802 0.94%
328 next layer Telekommunikationsdienstleistungs- und BeratungsGmbH 1764 0.11%
329 NETHINKS GmbH 8319 0.31%
330 manitu GmbH 34240 27.68%
331 SupraNet Communications, Inc 4150 0.24%
332 ITsjefen AS 44381 0.77%
333 IKS GmbH 15725 32.97%
334 NedZone Internet BV 25459 1.26%
335 Dr.-Ing. Nepustil & Co. GmbH 12502 0.70%
336 Monash University 56132 36.58%
337 EUserv Internet 35366 11.22%
338 Remex Consulting Pty Limited 55328 37.81%
339 EGATE Networks Inc. 13657 0.23%
340 Digital Pacific Pty Ltd 55803 0.53%
341 NineWire Pty LTd 132020 96.28%
342 US Dept of Transportation 2576 0.41%
343 LEONIX TELECOM 50628 0.17%
344 SIDN 1140 73.63%
345 Opera Software ASA 39832 0.24%
346 snowflake productions gmbh 198249 91.86%


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.