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, 11th May 2016

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 45.72%
2 KDDI 2516 28.02%
3 ATT 6389, 7018, 7132 59.03%
4 SoftBank 17676 12.46%
5 Verizon Wireless 6167, 22394 72.21%
6 Time Warner Cable 7843, 10796, 11351, 11426, 11427, 12271, 20001 26.60%
7 Deutsche Telekom AG 3320 29.33%
8 T-Mobile USA 21928 48.99%
9 British Sky Broadcasting 5607 42.60%
10 TELUS 852 47.99%
11 Chubu Telecommunications 18126 47.71%
12 Liberty Global 5089, 6830, 20825, 29562 8.44%
13 OTE SA 6799 38.70%
14 GVT 18881 21.46%
15 Free 12322 22.35%
16 Orange Business Services 3215 12.07%
17 Cox Communications 22773 16.80%
18 SKTelecom 9644 28.76%
19 Telekom Malaysia 4788 22.79%
20 Telefonica del Peru 6147 18.83%
21 Telenet 6848 58.08%
22 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 61.75%
23 CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 42.62%
24 Belgacom 5432 31.18%
25 Swisscom 3303, 6837 43.64%
26 Forthnet 1241 40.54%
27 RCS & RDS 8708 12.07%
28 Orange Poland 5617, 43447 6.46%
29 O2 Czech Republic 5610 33.31%
30 STNet 7522 44.04%
31 AT&T Wireless 20057 10.22%
32 Sprint Wireless 3651 23.30%
33 Vivo 10429, 11419, 19182, 26599, 27699 7.61%
34 FPT Telecom 18403 4.71%
35 Saudi Telecom Company (STC) 25019, 31177, 39386, 39891, 41426 4.23%
36 VOO 12392 57.53%
37 Rogers Communications 812, 20453 5.65%
38 Mediacom Communications 30036 20.76%
39 Telenor Nordic 2119 7.77%
40 DNA 16086 26.34%
41 Ziggo 9143 8.58%
42 XS4ALL 3265 63.71%
43 KPN 1136 6.28%
44 Choopa, LLC 20473 23.37%
45 Google Fiber 16591 65.04%
46 Get AS, Norway 25400, 41164, 47853, 49455, 51135 20.70%
47 Midcontinent Communications 11232 33.17%
48 its communications Inc.(iTSCOM) 9365 8.83%
49 Tele2 AB 1257 24.90%
50 Hughes Network Systems 6621 16.10%
51 Elion 3249 19.86%
52 TIM Brasil 26615 10.75%
53 BH Telecom d.d. Sarajevo 9146 9.33%
54 Fastweb Spa 12874 1.88%
55 Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.20%
56 Copel Telecomunicacoes S/A 14868 19.86%
57 Comteco Ltda 27839 26.29%
58 Internode 4739 2.41%
59 EPT Luxembourg 6661 21.99%
60 StarHub 4657, 55430 3.07%
61 M1 Limited 4773, 17547 3.94%
62 Init7 13030 31.89%
63 MediaCat Div./Community Netowork Center Inc. 17529 8.35%
64 inexio KGaA 42652 23.36%
65 Janet 786 3.73%
66 kt 4766 0.11%
67 Xfone 018 47956 8.37%
68 T-Mobile Czech Republic, a.s. 13036 4.84%
69 Dialog Axiata PLC 18001 3.28%
70 Cisco 109 48.49%
71 Deutsche Glasfaser 60294 40.97%
72 FasterNet Internet Service Provider 28580 21.58%
73 OVH 16276 10.34%
74 CESNET 2852 16.26%
75 UNINETT 224 16.61%
76 Altibox AS 29695 1.66%
77 Maxis Broadband Sdn Bhd 9534 0.53%
78 Elisa 719 9.31%
79 Greek Student Network 197121 25.06%
80 Kasetsart University 9411 34.65%
81 NYNEX satellite OHG 62023, 200519 60.61%
82 Rensselaer Polytechnic Institute 91 74.19%
83 Belnet 2611 7.63%
84 UniNet 4621 10.93%
85 University of Minnesota 57, 217 52.57%
86 Leibniz Supercomputing Centre 12816 24.93%
87 BelWue 553 7.15%
88 FCCN 1930 18.29%
89 Brno University of Technology 197451 59.46%
90 TekSavvy Solutions 5645 0.41%
91 ZeelandNet 15542 2.89%
92 University of Twente 1133 69.62%
93 University of Buffalo 3685 50.19%
94 University of Pennsylvania 55 58.21%
95 RedIRIS 766 6.07%
96 ARNES 2107 21.06%
97 Jiří štrohalm 197307 43.69%
98 CNM 10036 0.27%
99 Sonera 1759 0.30%
100 Monash University 56132 8.08%
101 Solcon 12414 4.03%
102 Indiana University 87 23.65%
103 GITN Sdn Berhad 38044 4.25%
104 Virginia Tech 1312 72.24%
105 SoftLayer Technologies 36351 2.14%
106 University of Iowa 3676 49.72%
107 Hurricane Electric 6939 8.34%
108 Aristotle University of Thessaloniki 5470 45.37%
109 Greek Research & Technology Network 5408 21.48%
110 University of California, San Diego 7377 10.92%
111 BVNET S.A. 27833 1.57%
112 Jazz Telecom, S.A. 12715 0.13%
113 TUBITAK ULAKBIM / ULAKNET 8517 1.06%
114 SWITCH 559 7.89%
115 Premier Communications 53347 12.45%
116 NIIF/Hungarnet 1955 14.88%
117 AAISP 20712 20.56%
118 Gustavus Adolphus College 17234 79.79%
119 AMRES - Serbian National Research and Education Network 13092 11.30%
120 Funet 1741 6.31%
121 GlobalConnect 42525 1.50%
122 kwaoo.com 24904 7.31%
123 LENTEL 44030 9.79%
124 LITNET 2847 3.16%
125 University of California, Los Angeles 52 3.18%
126 Edutel 39309 1.68%
127 CJSC Progressive Technologies 35475 3.77%
128 UFSCar 52888 50.66%
129 Bredband2 AB 29518 0.36%
130 PoP-SP RNP 1916 1.07%
131 GARR 137 1.27%
132 Universidade Federal de Santa Catarina 263300 45.18%
133 green.ch AG 1836 4.79%
134 UNESP 53166 33.76%
135 CAT TELECOM PCL. 9931 0.49%
136 Storm Internet 13319 3.92%
137 Spectrum Networks 11404 0.22%
138 Electronic Box 1403 0.59%
139 HEAnet 1213 3.95%
140 TeliaSonera International Carrier 1299 0.55%
141 Tulane University 10349 38.00%
142 iway AG 8758 4.56%
143 Saturn-Internet, ISP 31692 6.92%
144 Karlsruhe Institute of Technology (KIT) 34878 25.22%
145 Louisiana State University 2055 79.03%
146 University of South Florida 5661 16.73%
147 RENATER 2200 1.63%
148 Universidad de Guadalajara 2549 28.45%
149 Sudanese Research and Education Network 37197 19.36%
150 PowerTech Information Systems AS 5381 3.11%
151 DegNet GmbH 20902 21.60%
152 Digicel Trinidad & Tobago 27800 65.43%
153 NETIS TELECOM 25592 6.21%
154 SURFnet 1103 1.23%
155 AMS-IX 1200 68.48%
156 ATM S.A. 15694 0.17%
157 Academia Sinica Network 9264 2.11%
158 Alcom 3238 1.40%
159 Alhambra Eidos 15450 0.26%
160 Alog Data Centers do Brasil 16397, 26592 0.81%
161 Association tetaneutral.net 197422 6.60%
162 Atlas Networks 21743 0.25%
163 Australian Academic and Research Network (AARNet) 7575 4.21%
164 BIT BV 12859 0.50%
165 Bulgaria NREN 6802 5.19%
166 CESCA 13041 0.23%
167 CZ.NIC 25192 93.96%
168 China Telecom 4134, 4809 0.20%
169 Claranet 8426 0.30%
170 CloudFlare, Inc. 13335 25.52%
171 Cybernet1 21632 3.54%
172 DataChambers 29765 2.91%
173 Datametrix AS 200168 40.24%
174 Defense Research and Engineering Network 668 100.00%
175 DreamHost 26347 58.28%
176 Duocast BV 31477 0.42%
177 E-Werk Wels AG - it&tel 21013 0.15%
178 Energy Group Networks 18779 0.40%
179 Exponential-e 25180 0.25%
180 FX Networks 9503 1.59%
181 Faculdade de Ciências Aplicadas da Unicamp 53187 1.32%
182 Faroese Telecom 15389 0.14%
183 Fibertech Networks 16657 0.27%
184 FirstDigital Telecom 13415 0.99%
185 FranTech Solutions 53667 0.69%
186 Free University of Bozen-Bolzano 51708 7.52%
187 Fundacao Parque Tecnologico Itaipu - Brasil 263083 89.02%
188 Georgia Institute of Technology 2637 6.80%
189 Georgian College of AA&T 19764 0.40%
190 Gotalandsnatet AB 12597 0.65%
191 Host Virtual, Inc 36236 6.68%
192 IKS GmbH 15725 7.80%
193 Jaguar Network 30781 2.49%
194 Jolokia Networks? 12182 1.19%
195 KINBER 14877 0.83%
196 KaseNet 199087 10.99%
197 Layer42 Networks 8121 0.62%
198 MDlink GmbH 43341 0.16%
199 Makonix 52173 2.16%
200 Marist College 6124 68.00%
201 Miconet Sp. z o.o. 35007 0.32%
202 NAITWAYS 57119 0.11%
203 NBI Systems (NBIS) Ltd. 39396 7.92%
204 NTT Communications 2914 1.10%
205 NYI 11403 1.42%
206 Neo Telecoms 8218 1.57%
207 Neology 37105 0.30%
208 NetAssist 29632 38.53%
209 Netnod 8674 76.93%
210 Nettel Telecomunicações Ltda 53135 0.85%
211 NineWire Pty LTd 132020 97.53%
212 Oxilion B.V. 48539 0.32%
213 PCextreme B.V. 48635 33.57%
214 PREGINET 9821 0.33%
215 PT Cyberindo Aditama (CBN Internet) 4787 0.97%
216 PoP-RS 2716 12.55%
217 Ponto de Presença da RNP na Bahia 53164 6.13%
218 Quonix Networks 17185 0.11%
219 RESTENA 2602 4.38%
220 Red Académica de Centros de Investigación y Universidades Nacionales REACCIUN 20312, 27807 7.02%
221 Region 7 ESC 30350 6.23%
222 Remex Consulting Pty Limited 55328 79.45%
223 SPAWAR 22 70.06%
224 Sauk Valley Community College 13953 94.53%
225 Signet B.V. 28878 0.36%
226 Sistemas Fratec S.A. 262149 38.03%
227 Solido Networks ApS 12617 2.45%
228 SpeedPartner GmbH 34225 99.80%
229 Starlink 34602 0.24%
230 SupraNet Communications, Inc 4150 0.30%
231 TB Telecom Sp. z o.o. 51155 0.77%
232 TOP-IX Consortium 25309 71.20%
233 ThaiSarn 3836 99.40%
234 The Kansas Research and Education Network 2495 0.73%
235 The Tertiary Education and Research Network of South Africa (TENET) 2018 0.12%
236 Trunk Networks Limited 49375 27.22%
237 UNAM 278 0.49%
238 US Dept of Transportation 2576 0.22%
239 Universidad Panamericana 13679 46.64%
240 Universidad de Ibague 52467 75.49%
241 Universidade Estadual de Ponta Grossa 53046 73.24%
242 University Of Hawaii System 6360 16.48%
243 University of New Hampshire 11745 2.02%
244 University of Vermont 1351 50.37%
245 University of Wisconsin - Madison 59 3.25%
246 VentraIP Group (Australia) Pty Ltd 45638 47.68%
247 Vescnet 262792 2.85%
248 Vmax Net Telecomunicacoes do Brasil 28277 2.30%
249 Xirra GmbH 51191 1.24%
250 Zimcom Internet Solutions, Inc 30059 11.15%
251 domainfactory GmbH 34011 0.57%
252 edpnet 9031 0.89%
253 guifi.net 49835 3.08%
254 iNES Group 12310 0.33%
255 interscholz Internet Services GmbH & Co. KG 33843 52.85%


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.

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.

LinkedIn: Our adoption numbers are based on the percentage of page view requests made by LinkedIn members over IPv6 connections for select Autonomous System numbers. We measure this by adding JavaScript to select LinkedIn pages and the data represents our global member base.

Yahoo!: We are reporting adoption rates based on the percentage of IPv6 requests we receive on our Content Distribution Network (CDN). Yahoo!'s CDN is responsible for serving images, JavaScript, and other static images on behalf of most Yahoo! products world wide. This provides a view across diverse markets and interest groups.