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 January 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 41.39%
2 ATT 6389, 7018, 7132 52.71%
3 KDDI 2516 22.79%
4 Verizon Wireless 6167, 22394 68.60%
5 Time Warner Cable 7843, 10796, 11351, 11426, 11427, 12271, 20001 24.70%
6 T-Mobile USA 21928 47.39%
7 Deutsche Telekom AG 3320 24.44%
8 SoftBank 17676 9.13%
9 TELUS 852 45.45%
10 GVT 18881 16.33%
11 Liberty Global 5089, 6830, 20825, 29562 7.14%
12 OTE SA 6799 30.68%
13 Free 12322 22.16%
14 Telefonica del Peru 6147 19.58%
15 Chubu Telecommunications 18126 45.93%
16 Telekom Malaysia 4788 15.92%
17 Telenet 6848 53.83%
18 SKTelecom 9644 23.55%
19 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 57.68%
20 Belgacom 5432 28.33%
21 Swisscom 3303 41.73%
22 Forthnet 1241 36.41%
23 British Sky Broadcasting 5607 11.63%
24 CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 21.46%
25 RCS & RDS 8708 11.70%
26 O2 Czech Republic 5610 31.32%
27 Sprint Wireless 3651 11.76%
28 Orange Poland 5617, 43447 5.10%
29 AT&T Wireless 20057 7.07%
30 STNet 7522 38.77%
31 VOO 12392 61.17%
32 Telenor Nordic 2119 7.71%
33 Cox Communications 22773 2.56%
34 Vivo 10429, 11419, 19182, 26599, 27699 2.58%
35 XS4ALL 3265 58.39%
36 DNA 16086 24.55%
37 Get AS, Norway 25400, 41164, 47853, 49455, 51135 19.77%
38 KPN 1136 5.92%
39 Hughes Network Systems 6621 20.43%
40 Google Fiber 16591 62.43%
41 Mediacom Communications 30036 10.76%
42 Midcontinent Communications 11232 24.81%
43 Tele2 AB 1257 21.75%
44 Elion 3249 15.83%
45 Orange Business Services 3215 0.80%
46 its communications Inc.(iTSCOM) 9365 10.61%
47 Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.19%
48 BH Telecom d.d. Sarajevo 9146 7.84%
49 Cisco 109 41.36%
50 Copel Telecomunicacoes S/A 14868 11.87%
51 Init7 13030 27.38%
52 Fastweb Spa 12874 1.12%
53 Janet 786 3.50%
54 Saudi Telecom Company (STC) 25019, 31177, 39386, 39891, 41426 0.11%
55 Energy Group Networks 18779 0.24%
56 EPT Luxembourg 6661 18.47%
57 M1 Limited 4773, 17547 3.77%
58 Comteco Ltda 27839 21.01%
59 StarHub 4657, 55430 3.25%
60 Internode 4739 1.73%
61 inexio KGaA 42652 23.37%
62 CESNET 2852 15.93%
63 UNINETT 224 14.62%
64 Indiana University 87 32.68%
65 University of Pennsylvania 55 53.41%
66 T-Mobile Czech Republic, a.s. 13036 4.75%
67 TUBITAK ULAKBIM / ULAKNET 8517 1.50%
68 MediaCat Div./Community Netowork Center Inc. 17529 7.99%
69 RedIRIS 766 5.50%
70 FasterNet Internet Service Provider 28580 19.38%
71 Altibox AS 29695 1.51%
72 Deutsche Glasfaser 60294 40.07%
73 Choopa, LLC 20473 2.37%
74 OVH 16276 10.73%
75 Xfone 018 47956 5.19%
76 Louisiana State University 2055 72.63%
77 ARNES 2107 20.13%
78 FCCN 1930 14.82%
79 Leibniz Supercomputing Centre 12816 24.48%
80 University of Minnesota 57, 217 28.17%
81 Greek Student Network 197121 22.09%
82 Belnet 2611 6.95%
83 SWITCH 559 8.56%
84 Ziggo 9143 0.37%
85 Virginia Tech 1312 71.77%
86 Greek Research & Technology Network 5408 20.30%
87 BelWue 553 5.76%
88 University of South Florida 5661 32.96%
89 Brno University of Technology 197451 58.26%
90 Kasetsart University 9411 31.24%
91 Elisa 719 5.32%
92 UniNet 4621 22.36%
93 RENATER 2200 1.59%
94 NIIF/Hungarnet 1955 17.47%
95 GITN Sdn Berhad 38044 5.00%
96 University of Iowa 3676 31.89%
97 Monash University 56132 55.93%
98 Hurricane Electric 6939 19.53%
99 LITNET 2847 11.39%
100 Universidad de Guadalajara 2549 47.31%
101 Funet 1741 5.95%
102 ZeelandNet 15542 3.21%
103 GARR 137 1.45%
104 UNESP 53166 16.80%
105 SPAWAR 22 84.14%
106 Tulane University 10349 5.86%
107 SoftLayer Technologies 36351 5.19%
108 University Of Hawaii System 6360 15.59%
109 Australian Academic and Research Network (AARNet) 7575 7.91%
110 University of Twente 1133 23.67%
111 Aristotle University of Thessaloniki 5470 33.50%
112 Maxis Broadband Sdn Bhd 9534 0.21%
113 TekSavvy Solutions 5645 0.33%
114 SURFnet 1103 1.35%
115 University of Buffalo 3685 34.31%
116 University of California, Los Angeles 52 2.92%
117 Solcon 12414 3.94%
118 AMRES - Serbian National Research and Education Network 13092 13.45%
119 University of California, San Diego 7377 6.10%
120 Universidade Federal de Santa Catarina 263300 39.91%
121 NTT Communications 2914 0.49%
122 PT Cyberindo Aditama (CBN Internet) 4787 1.84%
123 PoP-RS 2716 12.89%
124 Jazz Telecom, S.A. 12715 0.10%
125 Sonera 1759 0.25%
126 University of Wisconsin - Madison 59 5.69%
127 Premier Communications 53347 11.38%
128 Jiří štrohalm 197307 37.61%
129 AAISP 20712 19.36%
130 Opera Software ASA 39832 0.16%
131 Karlsruhe Institute of Technology (KIT) 34878 21.96%
132 Gustavus Adolphus College 17234 79.23%
133 HEAnet 1213 2.69%
134 Telecentro S.A. 27747 0.14%
135 PoP-SP RNP 1916 0.54%
136 Electronic Box 1403 2.04%
137 National Technical University of Athens 3323 25.69%
138 CICA/Junta de Andalucía 198096 0.21%
139 PowerTech Information Systems AS 5381 2.87%
140 Rensselaer Polytechnic Institute 91 72.26%
141 Academia Sinica Network 9264 1.19%
142 LENTEL 44030 8.89%
143 Georgia Institute of Technology 2637 5.75%
144 GlobalConnect 42525 1.60%
145 UFSCar 52888 36.92%
146 University of Vermont 1351 24.30%
147 US Dept of Transportation 2576 27.04%
148 Nettel Telecomunicações Ltda 53135 1.82%
149 Starlink 34602 2.67%
150 Universidad Panamericana 13679 72.41%
151 Sudanese Research and Education Network 37197 18.29%
152 Edutel 39309 1.45%
153 green.ch AG 1836 4.11%
154 The Tertiary Education and Research Network of South Africa (TENET) 2018 0.79%
155 CJSC Progressive Technologies 35475 4.37%
156 kwaoo.com 24904 8.26%
157 Ponto de Presença da RNP na Bahia 53164 3.84%
158 Bredband2 AB 29518 0.42%
159 Free University of Bozen-Bolzano 51708 26.72%
160 XO Communications 2828 0.27%
161 Fundacao Parque Tecnologico Itaipu - Brasil 263083 70.19%
162 RESTENA 2602 5.29%
163 NetAssist 29632 10.51%
164 Marist College 6124 66.23%
165 Exponential-e 25180 0.28%
166 Integra 7385 0.26%
167 DegNet GmbH 20902 18.47%
168 ATM S.A. 15694 0.40%
169 Claranet 8426 0.49%
170 iway AG 8758 3.38%
171 Storm Internet 13319 2.64%
172 Saturn-Internet, ISP 31692 3.57%
173 Neo Telecoms 8218 2.77%
174 Alog Data Centers do Brasil 16397, 26592 0.95%
175 edpnet 9031 0.96%
176 Universidade Estadual de Ponta Grossa 53046 76.92%
177 CESCA 13041 0.33%
178 AMS-IX 1200 55.31%
179 ASDASD srl / POPWIFI 28929 2.05%
180 Alcom 3238 0.69%
181 Association tetaneutral.net 197422 11.16%
182 Atlas Networks 21743 0.45%
183 BIT BV 12859 1.26%
184 Bulgaria NREN 6802 2.24%
185 CZ.NIC 25192 90.06%
186 China Telecom 4134, 4809 0.35%
187 Cooperativa Telefónica de Villa Gdor. Galvez Ltda. 11815 1.09%
188 Critical Colocation 52342 5.51%
189 Cybera Inc 15296 0.23%
190 Cybernet1 21632 2.72%
191 DTS 24183 0.23%
192 DataChambers 29765 3.95%
193 Datametrix AS 200168 45.69%
194 Dhiraagu 7642 0.11%
195 Digicel Trinidad & Tobago 27800 2.24%
196 DirectVPS 29028 30.48%
197 DreamHost 26347 41.66%
198 Duocast BV 31477 0.83%
199 EGATE Networks Inc. 13657 0.81%
200 ENTANET International Ltd. 8468 0.11%
201 Ehiweb.it 43989 0.81%
202 FX Networks 9503 0.52%
203 Faculdade de Ciências Aplicadas da Unicamp 53187 0.75%
204 FidoNet 8282 3.85%
205 FirstDigital Telecom 13415 1.15%
206 FranTech Solutions 53667 1.25%
207 Hivane Networks 34019 89.90%
208 Host Virtual, Inc 36236 4.43%
209 IKS GmbH 15725 48.21%
210 ITsjefen AS 44381 1.02%
211 JT 8681 0.16%
212 Jaguar Network 30781 2.97%
213 Jolokia Networks? 12182 0.83%
214 KINBER 14877 3.21%
215 KaseNet 199087 10.77%
216 Layer42 Networks 8121 2.23%
217 Louisiana Optical Network Initiative 32440 0.52%
218 MDlink GmbH 43341 0.37%
219 MaineREN - University of Maine System 557 0.12%
220 Makonix 52173 2.56%
221 NBI Systems (NBIS) Ltd. 39396 5.29%
222 NetNam Corporation 24173 0.85%
223 Opensvit - PEF Fenix VT 39399 1.10%
224 Oquei Provedor 262761 0.19%
225 Oxilion B.V. 48539 0.65%
226 PCextreme B.V. 48635 8.58%
227 PREGINET 9821 0.50%
228 PT Pasifik Satelit Nusantara 9875 0.24%
229 Quonix Networks 17185 0.98%
230 Region 7 ESC 30350 8.39%
231 Remex Consulting Pty Limited 55328 60.94%
232 SARENET 3262 0.15%
233 Sauk Valley Community College 13953 78.80%
234 Signet B.V. 28878 0.99%
235 Solido Networks ApS 12617 3.60%
236 Spectrum Networks 11404 0.69%
237 SpeedPartner GmbH 34225 99.84%
238 SuomiCom 16302 3.06%
239 SupraNet Communications, Inc 4150 0.31%
240 ThaiSarn 3836 95.92%
241 The Kansas Research and Education Network 2495 0.63%
242 Trunk Networks Limited 49375 29.85%
243 UNAM 278 0.73%
244 Universidade Federal do Rio Grande do Sul 19200 3.47%
245 University of New Hampshire 11745 5.13%
246 VentraIP Group (Australia) Pty Ltd 45638 41.10%
247 Vescnet 262792 0.99%
248 Vmax Net Telecomunicacoes do Brasil 28277 1.66%
249 Zimcom Internet Solutions, Inc 30059 17.03%
250 guifi.net 49835 1.37%
251 iNES Group 12310 0.60%
252 interscholz Internet Services GmbH & Co. KG 33843 40.69%
253 mur.at - Verein zur Frderung von Netzkwerkkunst 39837 57.67%
254 ninux.org 197835 83.87%
255 prgmr.com 47066 36.35%
256 snowflake productions gmbh 198249 83.05%


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.