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 January 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 47.41%
2 ATT 6389, 7018, 7132 54.00%
3 KDDI 2516 26.78%
4 Verizon Wireless 6167, 22394 82.39%
5 Charter Communications 7843, 10796, 11351, 11426, 11427, 12271, 20001, 20115, 33363 20.31%
6 T-Mobile USA 21928 79.25%
7 SoftBank 17676 18.04%
8 British Sky Broadcasting 5607 73.71%
9 Deutsche Telekom AG 3320 33.02%
10 Cox Communications 22773 28.43%
11 OTE SA 6799 45.65%
12 Rogers Communications 812, 20453 44.10%
13 AT&T Wireless 20057 26.70%
14 SKTelecom 9644 39.48%
15 TELUS 852 48.02%
16 FPT Telecom 18403 24.30%
17 Liberty Global 5089, 6830, 20825, 29562 8.43%
18 Vivo 10429, 11419, 19182, 26599, 27699 21.65%
19 Orange Business Services 3215 16.21%
20 GVT 18881 21.07%
21 Sprint Wireless 3651, 10507 41.62%
22 Free 12322 26.46%
23 Telekom Malaysia 4788 15.34%
24 Telenet 6848 55.99%
25 Chubu Telecommunications 18126 46.04%
26 Orange Poland 5617, 43447 10.85%
27 Telefonica del Peru 6147 15.74%
28 Belgacom 5432 34.60%
29 Forthnet 1241 41.90%
30 CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 29.10%
31 Swisscom 3303, 6837 43.87%
32 O2 Czech Republic 5610 32.31%
33 RCS & RDS 8708 13.05%
34 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 47.45%
35 Mediacom Communications 30036 25.01%
36 STNet 7522 45.08%
37 Telenor Nordic 2119 12.90%
38 Saudi Telecom Company (STC) 25019, 31177, 39386, 39891, 41426 3.37%
39 VOO 12392 58.89%
40 KPN 1136 14.67%
41 Google Fiber 16591 64.65%
42 Telecentro S.A. 27747 26.01%
43 TIM Brasil 26615 15.01%
44 Fastweb Spa 12874 6.40%
45 DNA 16086 26.66%
46 Hughes Network Systems 6621 20.67%
47 XS4ALL 3265 60.99%
48 Midcontinent Communications 11232 31.23%
49 Tele2 AB 1257 24.07%
50 Elion 3249 25.22%
51 Ziggo 9143 7.75%
52 kt 4766 0.47%
53 Xfone 018 47956 26.26%
54 MTC-Mobile Telecommunications Company-Zain-KSA 43766 8.57%
55 its communications Inc.(iTSCOM) 9365 10.68%
56 Copel Telecomunicacoes S/A 14868 19.79%
57 Cisco 109 65.01%
58 Maxis Broadband Sdn Bhd 9534 3.39%
59 BH Telecom d.d. Sarajevo 9146 9.08%
60 Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.33%
61 M1 Limited 4773, 17547 7.95%
62 Internode 4739 3.47%
63 Janet 786 3.55%
64 EPT Luxembourg 6661 22.99%
65 T-Mobile Czech Republic, a.s. 13036 7.57%
66 Get AS, Norway 25400, 41164, 47853, 49455, 51135 6.50%
67 CESNET 2852 14.91%
68 OVH 16276 6.66%
69 Indiana University 87 48.17%
70 inexio KGaA 42652 23.09%
71 Liquid Telecommunications 30844, 30969 12.49%
72 EE 12576 2.01%
73 Dialog Axiata PLC 18001 5.18%
74 FasterNet Internet Service Provider 28580 28.20%
75 UNINETT 224 15.68%
76 University of Pennsylvania 55 72.49%
77 MediaCat Div./Community Netowork Center Inc. 17529 12.98%
78 Cosmote Mobile Telecommunications S.A 29247 7.72%
79 StarHub 4657, 55430 1.72%
80 TELMEX 8151 0.10%
81 ARNES 2107 19.28%
82 Deutsche Glasfaser 60294 37.54%
83 YTL Communications Sdn Bhd 45960 4.73%
84 Altibox AS 29695 1.58%
85 RedIRIS 766 4.07%
86 University of Minnesota 57, 217 32.66%
87 Louisiana State University 2055 77.98%
88 Leibniz Supercomputing Centre 12816 29.36%
89 SWITCH 559 9.83%
90 BelWue 553 5.89%
91 FCCN 1930 11.55%
92 University of South Florida 5661 31.96%
93 NYNEX satellite OHG 62023, 200519 63.29%
94 TUBITAK ULAKBIM / ULAKNET 8517 0.87%
95 TekSavvy Solutions 5645 1.05%
96 Choopa, LLC 20473 1.70%
97 University of California, San Diego 7377 17.89%
98 Brno University of Technology 197451 54.79%
99 Kasetsart University 9411 32.08%
100 GITN Sdn Berhad 38044 3.71%
101 BVNET S.A. 27833 10.75%
102 Belnet 2611 4.24%
103 Monash University 56132 57.65%
104 University of Twente 1133 80.55%
105 University of Iowa 3676 32.89%
106 UniNet 4621 10.69%
107 Virginia Tech 1312 69.99%
108 Universidad de Guadalajara 2549 30.32%
109 NIIF/Hungarnet 1955 12.11%
110 University Of Hawaii System 6360 25.38%
111 PoP-SP RNP 1916 1.91%
112 Solcon 12414 8.57%
113 Electronic Box 1403 4.00%
114 SPAWAR 22 83.08%
115 AMRES - Serbian National Research and Education Network 13092 12.96%
116 UNESP 53166 25.74%
117 GARR 137 1.26%
118 RENATER 2200 1.46%
119 SURFnet 1103 1.30%
120 Funet 1741 6.05%
121 kwaoo.com 24904 27.95%
122 University of Buffalo 3685 35.51%
123 Init7 13030 16.44%
124 Jiří štrohalm 197307 41.74%
125 Premier Communications 53347 12.58%
126 University of California, Los Angeles 52 4.86%
127 Sonera 1759 0.29%
128 Greek Research & Technology Network 5408 4.63%
129 Karlsruhe Institute of Technology (KIT) 34878 21.96%
130 NTT Communications 2914 2.08%
131 Companhia de Telecomunicações de Macau S.A.R.L. 4609 0.58%
132 University of Wisconsin - Madison 59 6.89%
133 Universidade Federal de Santa Catarina 263300 33.08%
134 ZeelandNet 15542 2.76%
135 Jazz Telecom, S.A. 12715 0.16%
136 Hurricane Electric 6939 2.75%
137 SoftLayer Technologies 36351 0.46%
138 AAISP 20712 21.12%
139 Georgia Institute of Technology 2637 6.79%
140 National Technical University of Athens 3323 33.33%
141 Tulane University 10349 27.62%
142 GlobalConnect 42525 1.11%
143 Gustavus Adolphus College 17234 78.80%
144 Rensselaer Polytechnic Institute 91 69.56%
145 Universidad Panamericana 13679 83.42%
146 MonkeyBrains 32329 6.56%
147 PoP-RS 2716 5.75%
148 Aristotle University of Thessaloniki 5470 57.65%
149 HEAnet 1213 2.65%
150 UFSCar 52888 18.53%
151 University of Vermont 1351 50.20%
152 Colt 8220 0.14%
153 Bangalore Broadband Network Pvt Ltd 55947 0.71%
154 LITNET 2847 2.19%
155 XO Communications 2828 0.28%
156 Storm Internet 13319 4.04%
157 Academia Sinica Network 9264 2.13%
158 The Tertiary Education and Research Network of South Africa (TENET) 2018 0.79%
159 iway AG 8758 5.11%
160 Ponto de Presença da RNP na Bahia 53164 2.49%
161 Edutel 39309 2.01%
162 RESTENA 2602 5.94%
163 Australian Academic and Research Network (AARNet) 7575 0.28%
164 CNM 10036 0.12%
165 CJSC Progressive Technologies 35475 4.59%
166 green.ch AG 1836 3.63%
167 Sudanese Research and Education Network 37197 19.13%
168 Fundacao Parque Tecnologico Itaipu - Brasil 263083 77.30%
169 Makonix 52173 37.75%
170 Marist College 6124 78.01%
171 Exponential-e 25180 0.33%
172 Starlink 34602 1.47%
173 PowerTech Information Systems AS 5381 1.66%
174 TeliaSonera International Carrier 1299 1.09%
175 Active Network S.p.A. 197075 12.08%
176 NetAssist 29632 7.49%
177 Alcom 3238 3.51%
178 National Informatics Centre 4758 0.20%
179 ATM S.A. 15694 0.15%
180 PT Cyberindo Aditama (CBN Internet) 4787 0.64%
181 FirstDigital Telecom 13415 1.95%
182 Saturn-Internet, ISP 31692 4.28%
183 Fibertech Networks 16657 0.41%
184 LENTEL 44030 4.79%
185 Complex Computers sp. z o.o. sp. k. 196890 10.93%
186 guifi.net 49835 2.82%
187 NETIS TELECOM 25592 7.60%
188 Opera Software ASA 39832 0.28%
189 AMS-IX 1200 91.75%
190 Atlas Networks 21743 0.39%
191 BDCOM ONLINE LIMITED 7565, 24122 0.20%
192 BIT BV 12859 1.75%
193 CZ.NIC 25192 90.77%
194 China Telecom 4134, 4809 0.15%
195 Claranet 8426 0.34%
196 Critical Colocation 52342 50.83%
197 Datametrix AS 200168 35.46%
198 DegNet GmbH 20902 11.76%
199 DirectVPS 29028 21.16%
200 Duocast BV 31477 0.44%
201 E-Werk Wels AG - it&tel 21013 0.70%
202 EGATE Networks Inc. 13657 0.12%
203 ENTANET International Ltd. 8468 0.10%
204 Free University of Bozen-Bolzano 51708 22.63%
205 IKS GmbH 15725 38.35%
206 Jaguar Network 30781 3.19%
207 Neo Telecoms 8218 2.88%
208 Netnod 8674 63.34%
209 NineWire Pty LTd 132020 95.66%
210 Opensvit - PEF Fenix VT 39399 1.77%
211 PCextreme B.V. 48635 46.42%
212 PREGINET 9821 0.47%
213 RAU - UdelaR 1797 3.32%
214 Region 7 ESC 30350 7.46%
215 SARENET 3262 0.26%
216 SIDN 1140 69.28%
217 Sauk Valley Community College 13953 87.28%
218 Signet B.V. 28878 0.54%
219 Sistemas Fratec S.A. 262149 19.29%
220 SpeedPartner GmbH 34225 98.94%
221 SuperInternet Access Pte Ltd 4844 0.75%
222 SupraNet Communications, Inc 4150 0.46%
223 TB Telecom Sp. z o.o. 51155 0.74%
224 TOP-IX Consortium 25309 80.94%
225 ThaiSarn 3836 98.90%
226 The Kansas Research and Education Network 2495 2.76%
227 Thor Datacenter 50613 0.72%
228 Trunk Networks Limited 49375 12.41%
229 Universidade Estadual de Ponta Grossa 53046 63.71%
230 University of New Hampshire 11745 2.70%
231 VentraIP Group (Australia) Pty Ltd 45638 42.03%
232 Vescnet 262792 3.83%
233 Vmax Net Telecomunicacoes do Brasil 28277 0.71%
234 edpnet 9031 0.64%
235 iNES Group 12310 0.37%
236 interscholz Internet Services GmbH & Co. KG 33843 19.42%
237 manitu GmbH 34240 9.13%
238 mc.net 6479 6.03%
239 next layer Telekommunikationsdienstleistungs- und BeratungsGmbH 1764 0.24%
240 snowflake productions gmbh 198249 90.30%


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.