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, 14th July 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 90.90%
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 71.65%
3 Combined US Mobile Carriers 3651, 6167, 10507, 20057, 21928, 22394 87.22%
4 Charter Communications 7843, 10796, 11351, 11426, 11427, 12271, 20001, 20115, 33363 51.62%
5 ATT 6389, 7018, 7132 68.23%
6 T-Mobile USA 21928 91.22%
7 KDDI 2516 67.71%
8 Deutsche Telekom AG 3320 70.74%
9 Viettel Group 7552 53.50%
10 SoftBank 17676 54.62%
11 Claro Brasil 4230, 28573 70.72%
12 Verizon Wireless 6167, 22394 84.03%
13 Orange Business Services 3215 70.41%
14 TELMEX 8151 59.47%
15 Vivo 10429, 11419, 18881, 19182, 26599, 27699 66.50%
16 British Sky Broadcasting 5607 82.62%
17 VNPT 45899 36.54%
18 AT&T Wireless 20057 84.30%
19 Cox Communications 22773 60.10%
20 Saudi Telecom Company (STC) 25019, 31177, 39386, 39891, 41426 44.88%
21 BT 2856, 25127 63.99%
22 Free 12322 88.05%
23 Rogers Communications 812, 20453 76.37%
24 Chunghwa Telecom (Mobile) 17421 89.85%
25 Telekom Malaysia 4788 45.05%
26 TELUS 852 62.04%
27 FPT Telecom 18403 36.08%
28 Chunghwa Telecom (HiNet) 3462, 9680, 17419 32.25%
29 OTE SA 6799 73.18%
30 KPN 1136, 2043, 5615, 8737, 13111, 21286, 59524 60.13%
31 Mega Cable 13999 42.23%
32 Liberty Global 5089, 6830, 20825, 29562 8.30%
33 Telenet 6848 75.35%
34 PJSC Mobile TeleSystems 8359, 28884, 29497, 35473, 39811 69.87%
35 Belgacom 5432 53.95%
36 Maxis Broadband Sdn Bhd 9534 58.75%
37 Telecentro S.A. 27747 75.59%
38 Fastweb Spa 12874 42.74%
39 RCS & RDS 8708 37.57%
40 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 77.32%
41 kt 4766 13.04%
42 Etihad Etisalat Company (Mobily) 35819 23.80%
43 TIM Brasil 26615 56.25%
44 MTC-Mobile Telecommunications Company-Zain-KSA 43766 40.47%
45 Mediacom Communications 30036 51.86%
46 Orange Poland 5617, 43447 40.03%
47 Swisscom 3303, 6837 52.05%
48 Chubu Telecommunications 18126 63.58%
49 EE 12576 62.40%
50 DNA 16086 73.92%
51 LG TELECOM 17853 46.19%
52 StarHub 4657, 55430 47.76%
53 Dialog Axiata PLC 18001 59.66%
54 Telenor Nordic 2119 26.86%
55 Elisa 719 55.67%
56 Vodafone Portugal 12353 54.04%
57 SKTelecom 9644 54.02%
58 NTT Docomo 9605 11.20%
59 Midcontinent Communications 11232 57.99%
60 Google Fiber 16591 39.01%
61 Telefonica del Peru 6147 10.10%
62 O2 Czech Republic 5610 47.83%
63 eircom 5466 64.29%
64 Forthnet 1241 62.16%
65 VOO 12392 76.46%
66 Bell Canada Wireline 577 10.29%
67 3 Scandinavia 44034 72.42%
68 PT. TELKOMSEL 23693 3.93%
69 Sunrise Communications AG 5426, 6730, 9214 41.55%
70 Hughes Network Systems 6621 72.14%
71 Cosmote Mobile Telecommunications S.A 29247 82.28%
72 Verizon Communications Inc. 701, 702 1.68%
73 WorldLink Communications Pvt Ltd 17501 36.62%
74 Tele2 AB 1257 29.95%
75 CloudFlare, Inc. 13335 17.02%
76 STNet 7522 53.62%
77 Hyperoptic 56478 74.69%
78 Copel Telecomunicacoes S/A 14868 56.63%
79 VM OPENLINK/Sumicity 28210 57.58%
80 its communications Inc.(iTSCOM) 9365 34.95%
81 Xfone 018 47956 53.60%
82 Digicel Trinidad & Tobago 27800 68.79%
83 M1 Limited 4773, 17547 22.02%
84 OVH 16276 4.13%
85 XS4ALL 3265 76.49%
86 Elion 3249 48.86%
87 Deutsche Glasfaser 60294 48.48%
88 Altibox AS 29695 16.95%
89 Mytel (Telecom International Myanmar Co., Ltd.) 136255 56.68%
90 DIRECTV COLOMBIA LTDA 262928 65.40%
91 YTL Communications Sdn Bhd 45960 54.31%
92 EPT Luxembourg 6661 61.18%
93 BH Telecom d.d. Sarajevo 9146 32.38%
94 inexio KGaA 42652 61.02%
95 Sky Italia 210278 73.91%
96 Mob Telecom 28598 44.83%
97 MediaCat Div./Community Netowork Center Inc. 17529 52.71%
98 TARR Kft. 8462 52.19%
99 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 5.62%
100 Comteco Ltda 27839 45.14%
101 China Mobile 9808, 24059, 24400, 24444, 24445, 24547, 38019, 45120, 56040, 56041, 56042, 56044, 56045, 56046, 56047, 56048, 132525, 134810, 136755 55.30%
102 TekSavvy Solutions 5645 13.04%
103 T-Mobile Czech Republic, a.s. 13036 10.05%
104 Companhia de Telecomunicações de Macau S.A.R.L. 4609 14.44%
105 Net Barretos 262983 55.01%
106 Sri Lanka Telecom PLC 9329 10.49%
107 ZeelandNet 15542 30.84%
108 Community Fibre Ltd. 201838 81.06%
109 IPLAN 16814 37.63%
110 BVNET S.A. 27833 48.85%
111 Nettel Telecomunicações Ltda 53135 69.54%
112 Internode 4739 39.11%
113 Justweb Telecomunicacoes LTDA 264552 52.34%
114 Mhnet Telecom 28146 10.18%
115 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 14.82%
116 Liquid Telecommunications 30844, 30969 11.68%
117 GNC Alfa CJSC 49800 22.58%
118 GLBB Japan 55900 20.35%
119 MDlink GmbH 43341 44.67%
120 Orange Moldova 25454 26.76%
121 Sonera 1759 1.56%
122 NET.COM TELECOMUNICAÇÕES LTDA EPP 28131 70.84%
123 Solcon 12414 14.37%
124 Centurylink 209 0.14%
125 Unetvale 53175 50.95%
126 Choopa, LLC 20473 13.94%
127 Sea Net 53222 51.82%
128 TNET PARTICIPAÇÕES INTERNET 263655 27.20%
129 Premier Communications 53347 29.39%
130 Cisco 109 57.08%
131 Tele2 Kazakhstan, Altel Kazakhstan 29555, 48503 2.14%
132 Coriolis Telecom 60032 22.37%
133 BelWue 553 10.57%
134 Bredband2 AB 29518 2.10%
135 Alcom 3238 39.66%
136 Janet 786 5.10%
137 Cabo Telecom 28220 3.72%
138 CESNET 2852 23.69%
139 Skymesh 7477 21.57%
140 Init7 13030 28.92%
141 Indiana University 87 62.77%
142 NineStar Connect 11525 20.19%
143 Voax Provedor de Internet 53093 27.48%
144 Georgia Institute of Technology 2637 69.04%
145 University of Minnesota 57, 217 67.48%
146 MD Brasil Ti & Telecom 28657 34.29%
147 Instituto Costarricense de Electricidad y Telecomunicaciones 11830 0.58%
148 PAM Pepe Antenas Telecomunicações e Multimidia Ltda ME 263388 43.82%
149 Bhutan Telecom 17660, 18024, 18025 15.70%
150 kwaoo.com 24904 10.69%
151 Get AS, Norway 25400, 41164, 47853, 49455, 51135 0.49%
152 Certto Telecomunicações 28130 11.51%
153 Jiří štrohalm 197307 53.51%
154 UNINETT 224 22.52%
155 Bangalore Broadband Network Pvt Ltd 55947 1.90%
156 University of Pennsylvania 55 79.77%
157 NYNEX satellite OHG 62023, 200519 75.84%
158 Virginia Tech 1312 82.56%
159 Leibniz Supercomputing Centre 12816 17.01%
160 Vmax Net Telecomunicacoes do Brasil 28277 24.78%
161 University of Iowa 3676 38.02%
162 FirstDigital Telecom 13415 4.88%
163 Deakin University 7645 68.93%
164 Storm Internet 13319 14.38%
165 Speedyway 265185 16.08%
166 Belnet 2611 5.20%
167 D-Vois Broadband Pvt. Ltd. 45769 0.30%
168 AAISP 20712 26.57%
169 SWITCH 559 7.60%
170 Louisiana State University 2055 64.23%
171 Karlsruhe Institute of Technology (KIT) 34878 79.57%
172 TCA INFORMATICA LTDA 53137 9.49%
173 University of South Florida 5661 57.43%
174 FCCN 1930 9.08%
175 MonkeyBrains 32329 6.23%
176 Gesatel - Villa Gesell Televisión Comunitaria S.A. 263834 41.06%
177 PoP-SP RNP 1916 5.47%
178 Niss Broadband 132774 7.07%
179 University of Buffalo 3685 63.42%
180 University of Twente 1133 70.28%
181 edpnet 9031 2.57%
182 University of California, San Diego 7377 19.72%
183 Portal Itaipu 262841 25.03%
184 Universidad de Guadalajara 2549 24.64%
185 iway AG 8758 2.88%
186 Electronic Box 1403 0.92%
187 Cape Connect Internet (Pty) Ltd 37640 40.12%
188 ARNES 2107 25.42%
189 RedIRIS 766 4.04%
190 Micro Logic Systems 56055 4.42%
191 Kasetsart University 9411 26.59%
192 Saturno Comunicações Ltda 262784 4.21%
193 Sikkanet - Gomti Cable and Broadband 45942 2.15%
194 GARR 137 2.09%
195 Gotalandsnatet AB 12597 18.41%
196 NIIF/Hungarnet 1955 7.57%
197 Waverly Utilities 20298 13.47%
198 Rensselaer Polytechnic Institute 91 73.02%
199 UniNet 4621 3.99%
200 FranTech Solutions 53667 4.27%
201 Foxx Provider Telecom ME 264084 13.41%
202 RESTENA 2602 14.09%
203 University of California, Los Angeles 52 5.31%
204 National Informatics Centre 4758 3.08%
205 A DO NASCIMENTO SANTOS INFORMATICA ME 267343 7.36%
206 JIFFY CABLE AND DATACOM 134944 45.22%
207 University Of Hawaii System 6360 24.60%
208 green.ch AG 1836 2.74%
209 UNET 29396 2.85%
210 Cooperativa Telefónica de Villa Gdor. Galvez Ltda. 11815 2.83%
211 Universidade Federal de Santa Catarina 263300 43.99%
212 Aristotle University of Thessaloniki 5470 64.64%
213 University of Vermont 1351 52.10%
214 ADDIX Internet Services 25415 4.09%
215 Colt 8220 0.24%
216 CZ.NIC 25192 96.95%
217 PT.MEDIA SARANA DATA(GMEDIA) 55666 0.73%
218 Brno University of Technology 197451 28.60%
219 guifi.net 49835 9.80%
220 Tulane University 10349 15.92%
221 Amber IT Limited 23956 0.51%
222 Marist College 6124 66.46%
223 CENIC / CalREN 2152, 2153 0.76%
224 SouthTech Telecom 25933 0.59%
225 VentraIP Group (Australia) Pty Ltd 45638 85.85%
226 NetAssist 29632 6.15%
227 Funet 1741 2.52%
228 ENTANET International Ltd. 8468 0.35%
229 SPAWAR 22 64.45%
230 University of Wisconsin - Madison 59 1.19%
231 National Knowledge Network 9885, 55824, 55847 0.10%
232 UFSCar 52888 52.31%
233 Atlas Networks 21743 3.45%
234 JT 8681 0.28%
235 SpeedWeb Telecom 262896 17.21%
236 Maxiweb Internet Provider 28140 4.83%
237 DreamHost 26347 61.42%
238 Ponto de Presença da RNP na Bahia 53164 6.73%
239 LENTEL 44030 3.42%
240 MaineREN - University of Maine System 557 2.45%
241 Fundacao Parque Tecnologico Itaipu - Brasil 263083 82.81%
242 Sistemas Fratec S.A. 262149 32.18%
243 Gustavus Adolphus College 17234 64.80%
244 Viva Tecnologia Telecom 266413 8.21%
245 Trunk Networks Limited 49375 20.71%
246 Konecta de Mexico 262913 2.44%
247 MARK-ITT 3226 1.42%
248 Association tetaneutral.net 197422 60.72%
249 ARCKANET Internet Services 29727 37.94%
250 GITN Sdn Berhad 38044 0.96%
251 Free University of Bozen-Bolzano 51708 40.45%
252 Universidade Estadual de Ponta Grossa 53046 82.80%
253 KaseNet 199087 13.94%
254 Cybernet1 21632 1.28%
255 Host Virtual, Inc 36236 29.13%
256 Zapelini & Cia. Ltda 263018 16.26%
257 Exponential-e 25180 0.10%
258 Xirra GmbH 51191 56.45%
259 PoP-RS 2716 2.57%
260 Gdlicanet 28408 36.01%
261 Grenode 51083 37.65%
262 HEAnet 1213 1.99%
263 TUBITAK ULAKBIM / ULAKNET 8517 0.32%
264 Greek Research & Technology Network 5408 1.17%
265 CESCA 13041 0.98%
266 Active Network S.p.A. 197075 1.16%
267 Oquei Provedor 262761 0.74%
268 SuomiCom 16302 2.09%
269 PT Pasifik Satelit Nusantara 9875 1.82%
270 AT BROADBAND PVT LTD 135876 0.65%
271 Critical Colocation 52342 78.49%
272 EUserv Internet 35366 75.31%
273 Interlan Networks AB 43065 8.03%
274 UNBORN NETWORKS PRIVATE LIMITED 136644 12.34%
275 PowerTech Information Systems AS 5381 83.39%
276 Universidad Panamericana 13679 71.44%
277 Zvezda Telecom 21367 0.63%
278 BIT BV 12859 1.19%
279 Chalmers Studentbostäder 48514 3.55%
280 National Technical University of Athens 3323 8.76%
281 Neo Telecoms 8218 1.37%
282 Southern Online Bio Technologies Limited 17771 0.21%
283 ICT Valle Umbra 15605 0.39%
284 BendTel Inc. 27008 1.42%
285 Region 7 ESC 30350 15.12%
286 prgmr.com 47066 17.85%
287 Sauk Valley Community College 13953 91.83%
288 Ucom LLC 8932 38.18%
289 Signet B.V. 28878 0.16%
290 Sudanese Research and Education Network 37197 15.63%
291 University of Macedonia 12364 34.60%
292 ATM S.A. 15694 0.33%
293 LITNET 2847 0.52%
294 Aptus Solutions 37349 0.39%
295 Thammasat University 37992 2.17%
296 Complex Computers sp. z o.o. sp. k. 196890 9.24%
297 Voxity 57103 16.17%
298 MarwaN 30983 0.64%
299 Sota Solutions Ltd 31742 1.88%
300 NETIS TELECOM 25592 0.95%
301 CICA/Junta de Andalucía 198096 0.70%
302 DataChambers 29765 5.03%
303 Bogons Ltd 3213 1.14%
304 NBI Systems (NBIS) Ltd. 39396 1.60%
305 ITsjefen AS 44381 0.83%
306 RTComm.RU ISP 8342 2.93%
307 The Kansas Research and Education Network 2495 0.61%
308 IKS GmbH 15725 21.39%
309 Universidade Federal do Rio Grande do Sul 19200 2.37%
310 University of New Hampshire 11745 0.92%
311 AMS-IX 1200 77.73%
312 manitu GmbH 34240 38.37%
313 S.P.E.Sistemi e Progetti Elettronici s.a.s. 49640 14.00%
314 iNES Group 12310 0.21%
315 HOTlink Internet 28661 0.33%
316 Masterradius Telecom 262465 2.91%
317 Blue Networks Technologies 50620 4.95%
318 NineWire Pty LTd 132020 85.63%
319 SuperInternet Access Pte Ltd 4844 0.58%
320 mc.net 6479 45.71%
321 Dr.-Ing. Nepustil & Co. GmbH 12502 0.63%
322 Levonet, s.r.o. 50242 0.14%
323 RAU - UdelaR 1797 1.98%
324 Energy Group Networks 18779 0.14%
325 Altitud S.r.l. 57111 0.16%
326 Freethought Internet Limited 41000 12.08%
327 Jolokia Networks? 12182 0.33%
328 SIDN 1140 19.33%
329 Alhambra Eidos 15450 0.71%
330 EGATE Networks Inc. 13657 0.22%
331 Luna.nl BV 12902 6.59%
332 Utility Line Italia srl 9026 0.56%
333 Novso 25358 83.00%
334 Digital Pacific Pty Ltd 55803 0.47%
335 snowflake productions gmbh 198249 91.94%
336 DirectVPS 29028 17.77%
337 SpeedPartner GmbH 34225 85.52%
338 BSO Network Solutions 31216 0.21%
339 Sparkation Pte Ltd 45634 1.53%
340 domainfactory GmbH 34011 0.78%
341 1 Click Services Limited 200552 6.26%


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.