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 April 2019

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 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 67.11%
2 KDDI 2516 48.70%
3 RELIANCE JIO INFOCOMM LTD 55836, 64049 90.25%
4 Charter Communications 7843, 10796, 11351, 11426, 11427, 12271, 20001, 20115, 33363 45.66%
5 SoftBank 17676 43.14%
6 ATT 6389, 7018, 7132 59.45%
7 TELMEX 8151 45.15%
8 Verizon Wireless 6167, 22394 86.65%
9 Deutsche Telekom AG 3320 64.28%
10 Claro Brasil 4230, 28573 51.54%
11 Chunghwa Telecom (Mobile) 17421 75.52%
12 Vivo 10429, 11419, 18881, 19182, 26599, 27699 50.13%
13 British Sky Broadcasting 5607 86.81%
14 T-Mobile USA 21928 91.71%
15 Chunghwa Telecom (HiNet) 3462, 9680, 17419 19.59%
16 SKTelecom 9644 39.44%
17 VNPT 45899 35.32%
18 Liberty Global 5089, 6830, 20825, 29562 21.85%
19 AT&T Wireless 20057 74.32%
20 Orange Business Services 3215 41.46%
21 BT 2856, 25127 43.10%
22 Cox Communications 22773 51.67%
23 Rogers Communications 812, 20453 53.38%
24 Orange Poland 5617, 43447 24.14%
25 Sprint Wireless 3651, 10507 77.59%
26 OTE SA 6799 56.15%
27 TELUS 852 53.04%
28 Free 12322 45.61%
29 FPT Telecom 18403 26.56%
30 Telekom Malaysia 4788 34.91%
31 Telenet 6848 70.49%
32 Saudi Telecom Company (STC) 25019, 31177, 39386, 39891, 41426 22.07%
33 NTT Docomo 9605 10.68%
34 Belgacom 5432 50.52%
35 Chubu Telecommunications 18126 56.39%
36 Telecentro S.A. 27747 62.44%
37 RCS & RDS 8708 28.83%
38 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 68.42%
39 TIM Brasil 26615 58.24%
40 Telefonica del Peru 6147 8.15%
41 O2 Czech Republic 5610 32.81%
42 Swisscom 3303, 6837 49.28%
43 Forthnet 1241 56.34%
44 Maxis Broadband Sdn Bhd 9534 40.78%
45 PJSC Mobile TeleSystems 8359, 28884, 29497, 35473, 39811 31.77%
46 Mega Cable 13999 26.03%
47 Fastweb Spa 12874 27.88%
48 DNA 16086 60.77%
49 Telenor Nordic 2119 22.93%
50 Mediacom Communications 30036 49.45%
51 EE 12576 39.62%
52 KPN 1136 28.06%
53 STNet 7522 55.34%
54 Hughes Network Systems 6621 66.21%
55 kt 4766 1.04%
56 VOO 12392 78.81%
57 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 12.69%
58 Google Fiber 16591 71.70%
59 StarHub 4657, 55430 31.30%
60 Xfone 018 47956 49.88%
61 eircom 5466 50.68%
62 Dialog Axiata PLC 18001 37.41%
63 Elion 3249 38.58%
64 Copel Telecomunicacoes S/A 14868 47.02%
65 Cosmote Mobile Telecommunications S.A 29247 70.30%
66 Bell Mobility 36522 54.11%
67 Midcontinent Communications 11232 51.69%
68 its communications Inc.(iTSCOM) 9365 19.27%
69 XS4ALL 3265 72.44%
70 Tele2 AB 1257 24.98%
71 BH Telecom d.d. Sarajevo 9146 19.45%
72 M1 Limited 4773, 17547 18.00%
73 TekSavvy Solutions 5645 20.99%
74 3 Scandinavia 44034 59.31%
75 Cablevisión Fibertel 10318 4.37%
76 Hyperoptic 56478 63.75%
77 Cisco 109 53.39%
78 T-Mobile Czech Republic, a.s. 13036 8.63%
79 EPT Luxembourg 6661 45.33%
80 Cabo Telecom 28220 38.73%
81 VM OPENLINK/Sumicity 28210 50.94%
82 MediaCat Div./Community Netowork Center Inc. 17529 28.80%
83 CESNET 2852 23.60%
84 Internode 4739 8.88%
85 Comteco Ltda 27839 37.76%
86 inexio KGaA 42652 47.35%
87 Sri Lanka Telecom PLC 9329 9.29%
88 Companhia de Telecomunicações de Macau S.A.R.L. 4609 9.76%
89 NIIF/Hungarnet 1955 19.00%
90 Janet 786 3.82%
91 Liquid Telecommunications 30844, 30969 14.48%
92 Vodafone Portugal 12353 4.17%
93 Deutsche Glasfaser 60294 34.21%
94 YTL Communications Sdn Bhd 45960 30.01%
95 Indiana University 87 63.41%
96 University of Minnesota 57, 217 67.43%
97 UNINETT 224 17.60%
98 BVNET S.A. 27833 34.46%
99 University of Pennsylvania 55 79.11%
100 Choopa, LLC 20473 6.83%
101 Virginia Tech 1312 89.14%
102 Georgia Institute of Technology 2637 72.76%
103 ARNES 2107 34.81%
104 Elisa 719 28.22%
105 Bell Canada Wireline 577 1.25%
106 Altibox AS 29695 1.99%
107 University of Buffalo 3685 73.80%
108 University of Iowa 3676 63.68%
109 SuperCSI 2506 36.02%
110 Brno University of Technology 197451 46.30%
111 PoP-SP RNP 1916 5.06%
112 University of South Florida 5661 61.24%
113 SWITCH 559 8.78%
114 RedIRIS 766 4.37%
115 FCCN 1930 11.62%
116 CNGI-CERNET2/6IX 23910, 23911 99.00%
117 Get AS, Norway 25400, 41164, 47853, 49455, 51135 2.16%
118 University of California, San Diego 7377 27.96%
119 Universidad de Guadalajara 2549 22.36%
120 Belnet 2611 6.51%
121 NYNEX satellite OHG 62023, 200519 68.05%
122 Louisiana State University 2055 54.61%
123 next layer Telekommunikationsdienstleistungs- und BeratungsGmbH 1764 14.84%
124 Leibniz Supercomputing Centre 12816 27.08%
125 Kasetsart University 9411 28.39%
126 Monash University 56132 17.22%
127 University of Vermont 1351 68.27%
128 Centurylink 209 0.14%
129 National Informatics Centre 4758 3.33%
130 University of Twente 1133 87.12%
131 UNAM 278 7.56%
132 BelWue 553 5.21%
133 SURFnet 1103 9.12%
134 Ponto de Presença da RNP na Bahia 53164 15.31%
135 University Of Hawaii System 6360 28.41%
136 Universidade Federal de Santa Catarina 263300 64.31%
137 OVH 16276 3.16%
138 Solcon 12414 13.15%
139 University of California, Los Angeles 52 11.01%
140 CNM 10036 0.47%
141 PoP-RS 2716 11.90%
142 UNESP 53166 32.78%
143 Justweb Telecomunicacoes LTDA 264552 30.59%
144 Rensselaer Polytechnic Institute 91 41.77%
145 Aristotle University of Thessaloniki 5470 64.94%
146 RENATER 2200 2.59%
147 ZeelandNet 15542 6.37%
148 Funet 1741 7.52%
149 TNET PARTICIPAÇÕES INTERNET 263655 20.88%
150 Init7 13030 18.50%
151 GARR 137 1.29%
152 GITN Sdn Berhad 38044 4.51%
153 TDC Sverige AB 3292 0.17%
154 Defense Research and Engineering Network 668 6.41%
155 Skymesh 7477 23.51%
156 TUBITAK ULAKBIM / ULAKNET 8517 0.53%
157 Jiří štrohalm 197307 61.23%
158 Marist College 6124 88.64%
159 AMRES - Serbian National Research and Education Network 13092 6.24%
160 Karlsruhe Institute of Technology (KIT) 34878 47.78%
161 HEAnet 1213 1.71%
162 Electronic Box 1403 3.17%
163 Sonera 1759 0.35%
164 kwaoo.com 24904 22.06%
165 Greek Research & Technology Network 5408 6.07%
166 Unetvale 53175 27.22%
167 SPAWAR 22 85.00%
168 Coriolis Telecom 60032 28.21%
169 Alcom 3238 24.10%
170 Amber IT Limited 23956 3.07%
171 SoftLayer Technologies 36351 0.61%
172 Nettel Telecomunicações Ltda 53135 11.84%
173 Premier Communications 53347 20.26%
174 University of the Philippines Diliman 23862 28.85%
175 MARK-ITT 3226 4.00%
176 NET.COM TELECOMUNICAÇÕES LTDA EPP 28131 25.53%
177 UniNet 4621 6.33%
178 IPLAN 16814 1.53%
179 MDlink GmbH 43341 13.29%
180 MonkeyBrains 32329 9.66%
181 National Technical University of Athens 3323 45.46%
182 University of Wisconsin - Madison 59 4.62%
183 Faroese Telecom 15389 6.95%
184 AAISP 20712 31.16%
185 Gustavus Adolphus College 17234 90.17%
186 Colt 8220 0.24%
187 LITNET 2847 5.47%
188 D-Vois Broadband Pvt. Ltd. 45769 0.36%
189 RESTENA 2602 26.22%
190 Tulane University 10349 11.01%
191 Universidad Panamericana 13679 92.40%
192 MaineREN - University of Maine System 557 2.93%
193 Association tetaneutral.net 197422 61.30%
194 UFSCar 52888 33.35%
195 Thammasat University 37992 6.28%
196 Storm Internet 13319 9.13%
197 Obenetwork AB 197595 23.05%
198 NTT Communications 2914 1.74%
199 NetAssist 29632 9.22%
200 UNET 29396 4.29%
201 Mhnet Telecom 28146 1.12%
202 Faculdade de Ciências Aplicadas da Unicamp 53187 17.34%
203 Fundacao Parque Tecnologico Itaipu - Brasil 263083 72.81%
204 FranTech Solutions 53667 4.52%
205 Exponential-e 25180 0.36%
206 Certto Telecomunicações 28130 8.85%
207 PT.MEDIA SARANA DATA(GMEDIA) 55666 2.18%
208 iway AG 8758 2.90%
209 Academia Sinica Network 9264 2.40%
210 Bredband2 AB 29518 0.36%
211 edpnet 9031 2.84%
212 Bhutan Telecom 17660, 18024, 18025 11.87%
213 Starlink 34602 1.42%
214 Niss Broadband 132774 3.40%
215 GlobalConnect 42525 1.15%
216 Gesatel - Villa Gesell Televisión Comunitaria S.A. 263834 26.31%
217 Hurricane Electric 6939 2.13%
218 A DO NASCIMENTO SANTOS INFORMATICA ME 267343 12.10%
219 AMS-IX 1200 84.34%
220 ATM S.A. 15694 0.42%
221 Academic Scientific Research Computer Network of Armenia (ASNET-AM) 47623 1.22%
222 Active Network S.p.A. 197075 6.06%
223 AdNet Telecom 5541 2.84%
224 Alhambra Eidos 15450 1.14%
225 Atlas Networks 21743 1.17%
226 Blue Networks Technologies 50620 4.96%
227 Bulgaria NREN 6802 2.49%
228 CESCA 13041 0.67%
229 CICA/Junta de Andalucía 198096 0.26%
230 CZ.NIC 25192 73.47%
231 Cape Connect Internet (Pty) Ltd 37640 63.97%
232 Chalmers Studentbostäder 48514 6.00%
233 China Mobile 9808, 24059, 24400, 24444, 24445, 24547, 38019, 45120, 56040, 56041, 56042, 56044, 56045, 56046, 56047, 56048, 132525, 134810, 136755 25.07%
234 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, 134768, 134769, 134770, 134771, 134772, 136188, 136190, 136191, 136192, 136193, 136194, 136195, 137687 3.03%
235 China Unicom 4808, 4837, 9800, 9929, 17621, 17622, 17623, 17816, 63836, 63837, 133118, 133119, 134542, 134543, 135061, 136958, 136959 4.15%
236 CloudFlare, Inc. 13335 14.71%
237 Complex Computers sp. z o.o. sp. k. 196890 5.67%
238 Critical Colocation 52342 78.05%
239 Cybernet1 21632 4.72%
240 DataChambers 29765 13.81%
241 Datahata Ltd 56740 4.43%
242 Datametrix AS 200168 21.53%
243 DegNet GmbH 20902 15.64%
244 Digicel Trinidad & Tobago 27800 88.33%
245 DirectVPS 29028 87.16%
246 DreamHost 26347 43.12%
247 EGATE Networks Inc. 13657 0.35%
248 ENTANET International Ltd. 8468 0.22%
249 Ehiweb.it 43989 0.55%
250 Esto Internet 135817 3.26%
251 FX Networks 9503 0.65%
252 FirstDigital Telecom 13415 3.30%
253 Foxx Provider Telecom ME 264084 4.90%
254 Free University of Bozen-Bolzano 51708 24.52%
255 Freethought Internet Limited 41000 15.28%
256 Go6 Institute 198644 72.88%
257 Grenode 51083 56.45%
258 HOSTLINE, UAB 198651 28.35%
259 HOTlink Internet 28661 0.54%
260 ICT Valle Umbra 15605 0.11%
261 IKS GmbH 15725 47.02%
262 ITsjefen AS 44381 2.78%
263 Integra 7385 0.31%
264 JT 8681 0.29%
265 KaseNet 199087 6.18%
266 Konecta de Mexico 262913 14.96%
267 LENTEL 44030 2.94%
268 LEONIX TELECOM 50628 0.10%
269 MAEHDROS 49677 6.78%
270 MD Brasil Ti & Telecom 28657 6.50%
271 Makonix 52173 6.01%
272 MarwaN 30983 0.66%
273 Maxiweb Internet Provider 28140 0.34%
274 Miconet Sp. z o.o. 35007 0.12%
275 Mythic Beasts Ltd 44684 21.13%
276 NBI Systems (NBIS) Ltd. 39396 5.31%
277 Neo Telecoms 8218 1.23%
278 NetNam Corporation 24173 0.16%
279 Netnod 8674 60.37%
280 Netwerkvereniging Coloclue 8283 65.84%
281 NineWire Pty LTd 132020 91.47%
282 Nominet UK 8683 3.50%
283 OptiTel S/A 28303 0.11%
284 Oquei Provedor 262761 0.29%
285 PCextreme B.V. 48635 43.63%
286 PREGINET 9821 0.81%
287 PT Cyberindo Aditama (CBN Internet) 4787 0.15%
288 PT Pasifik Satelit Nusantara 9875 3.92%
289 Perm State University 8684 7.40%
290 PowerTech Information Systems AS 5381 2.30%
291 Prolocation 41887 0.89%
292 RAU - UdelaR 1797 2.20%
293 Red Nacional Academica de Tecnologia Avanzada - RENATA 27817 0.11%
294 Redstone 5552 0.31%
295 Region 7 ESC 30350 11.18%
296 SIDN 1140 43.82%
297 Sauk Valley Community College 13953 87.21%
298 Sea Net 53222 4.84%
299 Signet B.V. 28878 0.22%
300 Sikkanet - Gomti Cable and Broadband 45942 0.15%
301 Sistemas Fratec S.A. 262149 13.42%
302 Sota Solutions Ltd 31742 2.59%
303 Southern Online Bio Technologies Limited 17771 0.10%
304 TB Telecom Sp. z o.o. 51155 0.37%
305 TCA INFORMATICA LTDA 53137 0.32%
306 TRIPLET BROADBAND 45758 35.24%
307 ThaiSarn 3836 98.04%
308 The Kansas Research and Education Network 2495 2.14%
309 Titânia Telecom 262526 0.19%
310 Trunk Networks Limited 49375 15.70%
311 UFSC - Universidade Federal de Santa Catarina - Brazil 11242 7.00%
312 US Dept of Transportation 2576 6.76%
313 Universidad de Ibague 52467 8.77%
314 Universidade Estadual de Ponta Grossa 53046 58.92%
315 Universidade Federal do Rio Grande do Sul 19200 0.65%
316 University of New Hampshire 11745 0.26%
317 Utility Line Italia srl 9026 0.82%
318 Vescnet 262792 2.43%
319 Viva Tecnologia Telecom 266413 6.21%
320 Vmax Net Telecomunicacoes do Brasil 28277 1.81%
321 Voax Provedor de Internet 53093 2.41%
322 Voxity 57103 12.85%
323 WINTECH Communications, Inc. 17683 0.12%
324 Waverly Utilities 20298 23.71%
325 WideVOIP - WhichWAN 42456 23.58%
326 Xirra GmbH 51191 52.08%
327 Zapelini & Cia. Ltda 263018 15.73%
328 Zvezda Telecom 21367 0.69%
329 green.ch AG 1836 2.59%
330 guifi.net 49835 2.18%
331 iNES Group 12310 0.56%
332 interscholz Internet Services GmbH & Co. KG 33843 0.31%
333 manitu GmbH 34240 10.93%
334 mc.net 6479 7.87%
335 prgmr.com 47066 31.68%


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.