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 May 2017

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 54.09%
2 ATT 6389, 7018, 7132 65.97%
3 RELIANCE JIO INFOCOMM LTD 55836, 64049 81.39%
4 KDDI 2516 35.28%
5 Verizon Wireless 6167, 22394 83.84%
6 Charter Communications 7843, 10796, 11351, 11426, 11427, 12271, 20001, 20115, 33363 23.99%
7 SoftBank 17676 27.96%
8 T-Mobile USA 21928 80.74%
9 Deutsche Telekom AG 3320 43.11%
10 British Sky Broadcasting 5607 76.19%
11 SKTelecom 9644 39.21%
12 AT&T Wireless 20057 35.79%
13 OTE SA 6799 53.02%
14 GVT 18881 30.62%
15 Vivo 10429, 11419, 19182, 26599, 27699 25.98%
16 Cox Communications 22773 31.08%
17 Liberty Global 5089, 6830, 20825, 29562 12.36%
18 Rogers Communications 812, 20453 50.49%
19 Orange Business Services 3215 19.96%
20 FPT Telecom 18403 23.10%
21 Sprint Wireless 3651, 10507 47.26%
22 TELUS 852 55.95%
23 Orange Poland 5617, 43447 10.20%
24 Free 12322 27.28%
25 Telekom Malaysia 4788 21.16%
26 Chubu Telecommunications 18126 61.52%
27 Telefonica del Peru 6147 18.95%
28 Telenet 6848 66.23%
29 Forthnet 1241 46.51%
30 Belgacom 5432 45.72%
31 TIM Brasil 26615 27.74%
32 CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 29.71%
33 O2 Czech Republic 5610 45.30%
34 RCS & RDS 8708 16.06%
35 Swisscom 3303, 6837 58.04%
36 TELMEX 8151 3.59%
37 Telenor Nordic 2119 19.84%
38 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 46.31%
39 STNet 7522 38.21%
40 Telecentro S.A. 27747 37.31%
41 KPN 1136 15.79%
42 Mediacom Communications 30036 31.22%
43 VNPT 45899 1.73%
44 VOO 12392 70.91%
45 Saudi Telecom Company (STC) 25019, 31177, 39386, 39891, 41426 5.38%
46 Google Fiber 16591 73.74%
47 kt 4766 0.57%
48 DNA 16086 37.69%
49 Tele2 AB 1257 21.17%
50 Fastweb Spa 12874 6.79%
51 Hughes Network Systems 6621 26.17%
52 Copel Telecomunicacoes S/A 14868 19.77%
53 XS4ALL 3265 71.23%
54 MTC-Mobile Telecommunications Company-Zain-KSA 43766 11.90%
55 Elion 3249 27.86%
56 EE 12576 4.77%
57 Ziggo 9143 8.49%
58 Midcontinent Communications 11232 35.18%
59 Xfone 018 47956 23.92%
60 Maxis Broadband Sdn Bhd 9534 3.86%
61 its communications Inc.(iTSCOM) 9365 6.63%
62 Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.47%
63 Cisco 109 53.03%
64 Cosmote Mobile Telecommunications S.A 29247 15.59%
65 Internode 4739 3.47%
66 Comteco Ltda 27839 31.00%
67 M1 Limited 4773, 17547 5.73%
68 EPT Luxembourg 6661 40.29%
69 Janet 786 3.38%
70 T-Mobile Czech Republic, a.s. 13036 8.20%
71 Dialog Axiata PLC 18001 9.69%
72 CESNET 2852 10.86%
73 MediaCat Div./Community Netowork Center Inc. 17529 8.99%
74 Companhia de Telecomunicações de Macau S.A.R.L. 4609 3.33%
75 inexio KGaA 42652 37.58%
76 Get AS, Norway 25400, 41164, 47853, 49455, 51135 6.69%
77 Liquid Telecommunications 30844, 30969 14.89%
78 FasterNet Internet Service Provider 28580 31.21%
79 UNINETT 224 23.32%
80 OVH 16276 7.02%
81 StarHub 4657, 55430 1.52%
82 BH Telecom d.d. Sarajevo 9146 2.78%
83 University of Minnesota 57, 217 60.51%
84 Elisa 719 1.94%
85 YTL Communications Sdn Bhd 45960 5.47%
86 University of Buffalo 3685 68.52%
87 NYNEX satellite OHG 62023, 200519 58.50%
88 Altibox AS 29695 1.47%
89 Deutsche Glasfaser 60294 21.32%
90 University of Pennsylvania 55 72.70%
91 PoP-SP RNP 1916 3.55%
92 eircom 5466 3.08%
93 RedIRIS 766 4.97%
94 Virginia Tech 1312 80.83%
95 ARNES 2107 12.00%
96 SWITCH 559 7.37%
97 TekSavvy Solutions 5645 1.56%
98 Choopa, LLC 20473 3.66%
99 Leibniz Supercomputing Centre 12816 22.04%
100 FCCN 1930 18.09%
101 Monash University 56132 28.71%
102 BVNET S.A. 27833 15.74%
103 University of Iowa 3676 68.04%
104 Belnet 2611 4.65%
105 University of California, San Diego 7377 18.38%
106 Indiana University 87 55.67%
107 Universidade Federal de Santa Catarina 263300 64.05%
108 Kasetsart University 9411 20.50%
109 China Telecom 4134, 4809 0.11%
110 Brno University of Technology 197451 66.92%
111 BelWue 553 3.82%
112 NIIF/Hungarnet 1955 3.82%
113 Universidad de Guadalajara 2549 28.48%
114 Aristotle University of Thessaloniki 5470 43.07%
115 Centurylink 209 0.12%
116 TUBITAK ULAKBIM / ULAKNET 8517 0.40%
117 University of Vermont 1351 47.28%
118 UNESP 53166 18.64%
119 University of Twente 1133 55.41%
120 Rensselaer Polytechnic Institute 91 78.94%
121 SURFnet 1103 1.26%
122 Greek Research & Technology Network 5408 7.62%
123 University Of Hawaii System 6360 28.78%
124 RENATER 2200 0.74%
125 AMRES - Serbian National Research and Education Network 13092 12.15%
126 Louisiana State University 2055 49.78%
127 Solcon 12414 6.37%
128 University of the Philippines Diliman 23862 16.93%
129 PoP-RS 2716 4.46%
130 University of California, Los Angeles 52 6.96%
131 Funet 1741 4.88%
132 Tulane University 10349 30.33%
133 SPAWAR 22 53.78%
134 Jiří štrohalm 197307 30.44%
135 Marist College 6124 83.30%
136 National Technical University of Athens 3323 24.23%
137 Init7 13030 11.67%
138 UniNet 4621 2.01%
139 Electronic Box 1403 2.07%
140 GARR 137 0.55%
141 University of South Florida 5661 1.99%
142 Sonera 1759 0.20%
143 Karlsruhe Institute of Technology (KIT) 34878 17.59%
144 NTT Communications 2914 0.58%
145 AAISP 20712 18.93%
146 UFSCar 52888 14.17%
147 Universidade Estadual de Ponta Grossa 53046 92.10%
148 University of Wisconsin - Madison 59 3.88%
149 kwaoo.com 24904 9.83%
150 ZeelandNet 15542 2.59%
151 SoftLayer Technologies 36351 0.64%
152 Premier Communications 53347 16.22%
153 Gustavus Adolphus College 17234 89.17%
154 UNAM 278 2.18%
155 RESTENA 2602 2.80%
156 Sudanese Research and Education Network 37197 31.96%
157 HEAnet 1213 1.07%
158 Georgia Institute of Technology 2637 8.01%
159 Universidad Panamericana 13679 55.41%
160 GITN Sdn Berhad 38044 1.68%
161 Association tetaneutral.net 197422 49.93%
162 Fundacao Parque Tecnologico Itaipu - Brasil 263083 52.40%
163 LITNET 2847 1.72%
164 Spectrum Networks 11404 0.54%
165 Digicel Trinidad & Tobago 27800 9.36%
166 MonkeyBrains 32329 3.89%
167 Makonix 52173 8.91%
168 Academia Sinica Network 9264 1.39%
169 Alcom 3238 5.27%
170 Storm Internet 13319 4.40%
171 iway AG 8758 3.21%
172 GlobalConnect 42525 0.86%
173 Ponto de Presença da RNP na Bahia 53164 1.15%
174 Colt 8220 0.11%
175 The Tertiary Education and Research Network of South Africa (TENET) 2018 0.24%
176 Universidad de Ibague 52467 56.10%
177 XO Communications 2828 0.16%
178 Bangalore Broadband Network Pvt Ltd 55947 0.45%
179 Edutel 39309 1.34%
180 LENTEL 44030 5.14%
181 PowerTech Information Systems AS 5381 1.17%
182 Justweb Telecomunicacoes LTDA 264552 5.80%
183 guifi.net 49835 3.52%
184 Active Network S.p.A. 197075 8.61%
185 National Informatics Centre 4758 0.27%
186 CJSC Progressive Technologies 35475 1.04%
187 Vodafone Portugal 12353 0.15%
188 Faroese Telecom 15389 1.66%
189 Starlink 34602 0.96%
190 PT Cyberindo Aditama (CBN Internet) 4787 0.68%
191 Exponential-e 25180 0.21%
192 green.ch AG 1836 2.54%
193 NetAssist 29632 6.80%
194 ATM S.A. 15694 0.19%


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.

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.