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, 9th June 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 46.32%
2 ATT 6389, 7018, 7132 58.86%
3 KDDI 2516 26.78%
4 Verizon Wireless 6167, 22394 72.99%
5 Time Warner Cable 7843, 10796, 11351, 11426, 11427, 12271, 20001 27.30%
6 SoftBank 17676 13.69%
7 Deutsche Telekom AG 3320 30.90%
8 British Sky Broadcasting 5607 61.86%
9 T-Mobile USA 21928 58.20%
10 GVT 18881 20.55%
11 OTE SA 6799 38.12%
12 TELUS 852 45.92%
13 SKTelecom 9644 33.35%
14 Liberty Global 5089, 6830, 20825, 29562 8.93%
15 Cox Communications 22773 18.77%
16 Telekom Malaysia 4788 23.25%
17 Chubu Telecommunications 18126 54.00%
18 Telefonica del Peru 6147 19.61%
19 Orange Business Services 3215 13.21%
20 Free 12322 23.23%
21 CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 41.40%
22 Telenet 6848 57.36%
23 Belgacom 5432 33.84%
24 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 58.25%
25 Forthnet 1241 40.21%
26 Orange Poland 5617, 43447 6.95%
27 RCS & RDS 8708 12.63%
28 Vivo 10429, 11419, 19182, 26599, 27699 6.62%
29 Swisscom 3303, 6837 40.66%
30 AT&T Wireless 20057 11.49%
31 O2 Czech Republic 5610 31.65%
32 STNet 7522 40.78%
33 Sprint Wireless 3651 28.27%
34 FPT Telecom 18403 4.06%
35 Saudi Telecom Company (STC) 25019, 31177, 39386, 39891, 41426 4.50%
36 Rogers Communications 812, 20453 7.00%
37 VOO 12392 63.42%
38 Mediacom Communications 30036 22.03%
39 DNA 16086 26.41%
40 Telenor Nordic 2119 5.82%
41 XS4ALL 3265 61.37%
42 Ziggo 9143 8.32%
43 Google Fiber 16591 66.76%
44 KPN 1136 5.95%
45 Get AS, Norway 25400, 41164, 47853, 49455, 51135 20.32%
46 Hughes Network Systems 6621 17.21%
47 Midcontinent Communications 11232 33.68%
48 TIM Brasil 26615 12.77%
49 Tele2 AB 1257 24.35%
50 Elion 3249 24.31%
51 its communications Inc.(iTSCOM) 9365 9.05%
52 Copel Telecomunicacoes S/A 14868 17.88%
53 Cisco 109 48.03%
54 Fastweb Spa 12874 2.19%
55 Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.18%
56 BH Telecom d.d. Sarajevo 9146 9.50%
57 Comteco Ltda 27839 22.70%
58 M1 Limited 4773, 17547 3.74%
59 Internode 4739 2.60%
60 EPT Luxembourg 6661 22.09%
61 kt 4766 0.13%
62 Janet 786 3.66%
63 StarHub 4657, 55430 2.55%
64 Init7 13030 33.19%
65 Maxis Broadband Sdn Bhd 9534 1.45%
66 CESNET 2852 13.61%
67 inexio KGaA 42652 26.95%
68 T-Mobile Czech Republic, a.s. 13036 5.42%
69 MediaCat Div./Community Netowork Center Inc. 17529 8.45%
70 UNINETT 224 14.85%
71 OVH 16276 8.69%
72 FasterNet Internet Service Provider 28580 29.54%
73 Xfone 018 47956 7.75%
74 Dialog Axiata PLC 18001 4.44%
75 Deutsche Glasfaser 60294 40.31%
76 RedIRIS 766 5.78%
77 Belnet 2611 8.03%
78 Greek Student Network 197121 24.71%
79 ARNES 2107 23.28%
80 FCCN 1930 15.76%
81 TUBITAK ULAKBIM / ULAKNET 8517 1.19%
82 Elisa 719 10.64%
83 Altibox AS 29695 1.60%
84 GITN Sdn Berhad 38044 4.55%
85 NYNEX satellite OHG 62023, 200519 60.33%
86 University of Minnesota 57, 217 41.99%
87 University of Pennsylvania 55 47.78%
88 Indiana University 87 23.57%
89 Leibniz Supercomputing Centre 12816 24.83%
90 SWITCH 559 8.01%
91 Kasetsart University 9411 47.17%
92 BelWue 553 5.59%
93 Universidade Federal de Santa Catarina 263300 56.67%
94 University of California, San Diego 7377 16.57%
95 CAT TELECOM PCL. 9931 1.22%
96 Virginia Tech 1312 68.37%
97 Choopa, LLC 20473 4.85%
98 Brno University of Technology 197451 53.63%
99 NIIF/Hungarnet 1955 16.37%
100 UNESP 53166 32.25%
101 Louisiana State University 2055 75.18%
102 University of Twente 1133 67.79%
103 Greek Research & Technology Network 5408 22.18%
104 RENATER 2200 1.70%
105 University of Iowa 3676 31.09%
106 Universidad de Guadalajara 2549 29.28%
107 Aristotle University of Thessaloniki 5470 42.75%
108 PoP-RS 2716 7.06%
109 UniNet 4621 22.09%
110 GARR 137 1.13%
111 AMRES - Serbian National Research and Education Network 13092 9.37%
112 SPAWAR 22 51.11%
113 SURFnet 1103 1.81%
114 TekSavvy Solutions 5645 0.49%
115 ZeelandNet 15542 2.76%
116 PoP-SP RNP 1916 1.02%
117 UFSCar 52888 57.31%
118 University of South Florida 5661 27.47%
119 SoftLayer Technologies 36351 4.12%
120 University of Buffalo 3685 39.57%
121 Solcon 12414 4.86%
122 University Of Hawaii System 6360 18.68%
123 Jiří štrohalm 197307 47.01%
124 NTT Communications 2914 3.38%
125 Universidade Estadual de Ponta Grossa 53046 61.17%
126 Sonera 1759 0.26%
127 CNM 10036 0.30%
128 Funet 1741 6.25%
129 Karlsruhe Institute of Technology (KIT) 34878 23.35%
130 Hurricane Electric 6939 17.13%
131 BVNET S.A. 27833 2.65%
132 University of California, Los Angeles 52 3.69%
133 Jazz Telecom, S.A. 12715 0.11%
134 National Technical University of Athens 3323 25.17%
135 LITNET 2847 3.07%
136 University of Wisconsin - Madison 59 4.98%
137 AAISP 20712 19.72%
138 Tulane University 10349 29.65%
139 Premier Communications 53347 14.67%
140 HEAnet 1213 3.61%
141 Australian Academic and Research Network (AARNet) 7575 4.40%
142 Electronic Box 1403 2.60%
143 Fundacao Parque Tecnologico Itaipu - Brasil 263083 65.47%
144 Academia Sinica Network 9264 2.27%
145 Rensselaer Polytechnic Institute 91 58.30%
146 Georgia Institute of Technology 2637 7.00%
147 Ponto de Presença da RNP na Bahia 53164 1.77%
148 LENTEL 44030 9.12%
149 Universidad Panamericana 13679 83.06%
150 Saturn-Internet, ISP 31692 5.40%
151 University of Vermont 1351 29.85%
152 XO Communications 2828 0.26%
153 PowerTech Information Systems AS 5381 2.68%
154 GlobalConnect 42525 1.15%
155 TeliaSonera International Carrier 1299 1.57%
156 Host Virtual, Inc 36236 7.93%
157 The Tertiary Education and Research Network of South Africa (TENET) 2018 0.24%
158 CJSC Progressive Technologies 35475 3.86%
159 PT Cyberindo Aditama (CBN Internet) 4787 0.98%
160 Sudanese Research and Education Network 37197 17.46%
161 Edutel 39309 1.57%
162 Storm Internet 13319 4.08%
163 ATM S.A. 15694 0.13%
164 NetAssist 29632 18.34%
165 green.ch AG 1836 3.80%
166 Digicel Trinidad & Tobago 27800 62.97%
167 RESTENA 2602 7.41%
168 kwaoo.com 24904 6.31%
169 Exponential-e 25180 0.26%
170 iway AG 8758 4.52%
171 NETIS TELECOM 25592 6.87%
172 Integra 7385 0.23%
173 Red Académica de Centros de Investigación y Universidades Nacionales REACCIUN 20312, 27807 3.79%
174 Marist College 6124 80.54%
175 ASDASD srl / POPWIFI 28929 1.12%
176 Alcom 3238 1.02%
177 Alog Data Centers do Brasil 16397, 26592 0.54%
178 Association tetaneutral.net 197422 19.39%
179 BIT BV 12859 1.45%
180 Bulgaria NREN 6802 3.31%
181 CESCA 13041 0.39%
182 CZ.NIC 25192 75.70%
183 China Telecom 4134, 4809 0.21%
184 Claranet 8426 0.21%
185 Cybernet1 21632 5.79%
186 DataChambers 29765 0.59%
187 Datametrix AS 200168 68.12%
188 DegNet GmbH 20902 23.81%
189 DreamHost 26347 46.24%
190 ENTANET International Ltd. 8468 0.10%
191 Energy Group Networks 18779 0.11%
192 FX Networks 9503 0.32%
193 Faculdade de Ciências Aplicadas da Unicamp 53187 0.58%
194 Fibertech Networks 16657 0.33%
195 FirstDigital Telecom 13415 2.70%
196 Gustavus Adolphus College 17234 83.86%
197 IDM 9051 0.16%
198 Jaguar Network 30781 1.30%
199 Jolokia Networks? 12182 0.43%
200 KINBER 14877 0.49%
201 Layer42 Networks 8121 2.66%
202 Louisiana Optical Network Initiative 32440 0.21%
203 MaineREN - University of Maine System 557 0.12%
204 Makonix 52173 1.37%
205 NBI Systems (NBIS) Ltd. 39396 6.93%
206 NET.COM TELECOMUNICAÇÕES LTDA EPP 28131 0.55%
207 National Informatics Centre 4758 0.12%
208 Neo Telecoms 8218 1.85%
209 PCextreme B.V. 48635 58.96%
210 PT Pasifik Satelit Nusantara 9875 0.14%
211 Sauk Valley Community College 13953 99.22%
212 Signet B.V. 28878 0.50%
213 Sistemas Fratec S.A. 262149 26.53%
214 SpeedPartner GmbH 34225 99.42%
215 Starlink 34602 0.54%
216 TB Telecom Sp. z o.o. 51155 0.98%
217 ThaiSarn 3836 94.02%
218 The Kansas Research and Education Network 2495 1.29%
219 UNAM 278 0.48%
220 UNET 29396 0.11%
221 US Dept of Transportation 2576 0.16%
222 Universidade Federal do Rio Grande do Sul 19200 6.17%
223 University of New Hampshire 11745 3.06%
224 Voxel / Internap 29791 0.42%
225 Xirra GmbH 51191 1.49%
226 edpnet 9031 1.10%
227 guifi.net 49835 2.87%


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.