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, 8th March 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 46.00%
2 ATT 6389, 7018, 7132 54.44%
3 KDDI 2516 28.02%
4 RELIANCE JIO INFOCOMM LTD 55836, 64049 77.23%
5 Verizon Wireless 6167, 22394 84.36%
6 Charter Communications 7843, 10796, 11351, 11426, 11427, 12271, 20001, 20115, 33363 20.67%
7 SoftBank 17676 19.61%
8 T-Mobile USA 21928 81.15%
9 Deutsche Telekom AG 3320 36.28%
10 British Sky Broadcasting 5607 74.30%
11 OTE SA 6799 43.91%
12 SKTelecom 9644 44.98%
13 Cox Communications 22773 27.93%
14 AT&T Wireless 20057 30.42%
15 Liberty Global 5089, 6830, 20825, 29562 9.52%
16 Vivo 10429, 11419, 19182, 26599, 27699 21.86%
17 GVT 18881 21.08%
18 FPT Telecom 18403 22.96%
19 Rogers Communications 812, 20453 45.44%
20 TELUS 852 48.66%
21 Orange Business Services 3215 16.56%
22 Sprint Wireless 3651, 10507 45.31%
23 Free 12322 28.46%
24 Telekom Malaysia 4788 16.83%
25 Orange Poland 5617, 43447 12.97%
26 Chubu Telecommunications 18126 49.31%
27 Telenet 6848 54.45%
28 Telefonica del Peru 6147 15.63%
29 Belgacom 5432 34.80%
30 O2 Czech Republic 5610 31.17%
31 Forthnet 1241 40.31%
32 Swisscom 3303, 6837 46.00%
33 CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 27.59%
34 RCS & RDS 8708 12.85%
35 Telenor Nordic 2119 19.62%
36 TIM Brasil 26615 30.41%
37 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 46.47%
38 STNet 7522 49.77%
39 Mediacom Communications 30036 27.82%
40 KPN 1136 16.06%
41 Saudi Telecom Company (STC) 25019, 31177, 39386, 39891, 41426 3.14%
42 VOO 12392 62.76%
43 Telecentro S.A. 27747 24.74%
44 Google Fiber 16591 62.93%
45 DNA 16086 27.67%
46 Fastweb Spa 12874 6.66%
47 Midcontinent Communications 11232 36.66%
48 XS4ALL 3265 61.93%
49 kt 4766 0.63%
50 Elion 3249 25.21%
51 Tele2 AB 1257 50.33%
52 Hughes Network Systems 6621 20.71%
53 Ziggo 9143 7.39%
54 MTC-Mobile Telecommunications Company-Zain-KSA 43766 12.18%
55 Xfone 018 47956 33.76%
56 Maxis Broadband Sdn Bhd 9534 4.49%
57 Copel Telecomunicacoes S/A 14868 21.27%
58 its communications Inc.(iTSCOM) 9365 9.66%
59 M1 Limited 4773, 17547 7.97%
60 Cisco 109 63.97%
61 Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.27%
62 BH Telecom d.d. Sarajevo 9146 8.70%
63 Janet 786 3.54%
64 Internode 4739 3.91%
65 T-Mobile Czech Republic, a.s. 13036 7.69%
66 EE 12576 2.98%
67 EPT Luxembourg 6661 24.53%
68 TELMEX 8151 0.23%
69 Comteco Ltda 27839 28.55%
70 CESNET 2852 13.73%
71 Get AS, Norway 25400, 41164, 47853, 49455, 51135 6.08%
72 inexio KGaA 42652 27.13%
73 Cosmote Mobile Telecommunications S.A 29247 10.51%
74 Indiana University 87 54.01%
75 Dialog Axiata PLC 18001 5.09%
76 University of Minnesota 57, 217 52.81%
77 FasterNet Internet Service Provider 28580 26.34%
78 Liquid Telecommunications 30844, 30969 12.17%
79 UNINETT 224 18.03%
80 StarHub 4657, 55430 1.70%
81 OVH 16276 9.25%
82 MediaCat Div./Community Netowork Center Inc. 17529 10.76%
83 Deutsche Glasfaser 60294 36.62%
84 RedIRIS 766 5.02%
85 Choopa, LLC 20473 5.44%
86 YTL Communications Sdn Bhd 45960 4.99%
87 Altibox AS 29695 1.89%
88 University of Buffalo 3685 54.81%
89 ARNES 2107 18.37%
90 NYNEX satellite OHG 62023, 200519 78.38%
91 Louisiana State University 2055 54.00%
92 Kasetsart University 9411 25.18%
93 Brno University of Technology 197451 55.43%
94 Companhia de Telecomunicações de Macau S.A.R.L. 4609 2.18%
95 SWITCH 559 9.38%
96 University of Iowa 3676 46.55%
97 BVNET S.A. 27833 11.12%
98 FCCN 1930 11.41%
99 University of South Florida 5661 38.17%
100 PoP-SP RNP 1916 2.43%
101 TekSavvy Solutions 5645 1.49%
102 Monash University 56132 28.81%
103 University of Pennsylvania 55 67.99%
104 Belnet 2611 4.35%
105 University of California, San Diego 7377 23.46%
106 NIIF/Hungarnet 1955 11.30%
107 Leibniz Supercomputing Centre 12816 25.88%
108 University Of Hawaii System 6360 27.55%
109 TUBITAK ULAKBIM / ULAKNET 8517 0.83%
110 Universidad de Guadalajara 2549 28.29%
111 UniNet 4621 11.19%
112 Universidade Federal de Santa Catarina 263300 36.81%
113 University of Twente 1133 83.03%
114 Virginia Tech 1312 76.49%
115 BelWue 553 5.43%
116 University of Vermont 1351 68.35%
117 Aristotle University of Thessaloniki 5470 65.99%
118 Solcon 12414 9.77%
119 GITN Sdn Berhad 38044 3.76%
120 RENATER 2200 1.47%
121 Rensselaer Polytechnic Institute 91 76.59%
122 Greek Research & Technology Network 5408 10.97%
123 Tulane University 10349 44.49%
124 UNESP 53166 35.59%
125 University of California, Los Angeles 52 6.98%
126 SURFnet 1103 1.30%
127 Funet 1741 7.28%
128 Electronic Box 1403 3.99%
129 SPAWAR 22 82.96%
130 Jiří štrohalm 197307 41.18%
131 Init7 13030 34.18%
132 PoP-RS 2716 5.35%
133 Marist College 6124 61.91%
134 kwaoo.com 24904 23.05%
135 AMRES - Serbian National Research and Education Network 13092 12.19%
136 GARR 137 0.93%
137 Sonera 1759 0.31%
138 Karlsruhe Institute of Technology (KIT) 34878 28.93%
139 National Technical University of Athens 3323 39.16%
140 University of Wisconsin - Madison 59 6.00%
141 Makonix 52173 60.79%
142 LITNET 2847 2.33%
143 Premier Communications 53347 12.70%
144 NTT Communications 2914 2.08%
145 SoftLayer Technologies 36351 0.69%
146 ZeelandNet 15542 2.67%
147 HEAnet 1213 1.93%
148 AAISP 20712 19.42%
149 Gustavus Adolphus College 17234 78.67%
150 Hurricane Electric 6939 0.55%
151 Universidad Panamericana 13679 86.28%
152 Georgia Institute of Technology 2637 4.21%
153 UFSCar 52888 22.18%
154 Universidade Estadual de Ponta Grossa 53046 86.64%
155 Sudanese Research and Education Network 37197 25.42%
156 iway AG 8758 4.79%
157 GlobalConnect 42525 1.03%
158 CJSC Progressive Technologies 35475 4.04%
159 Colt 8220 0.16%
160 XO Communications 2828 0.25%
161 MonkeyBrains 32329 5.18%
162 Fundacao Parque Tecnologico Itaipu - Brasil 263083 76.45%
163 Storm Internet 13319 5.40%
164 Edutel 39309 2.04%
165 Ponto de Presença da RNP na Bahia 53164 1.23%
166 Universidad de Ibague 52467 79.10%
167 Alcom 3238 5.30%
168 The Tertiary Education and Research Network of South Africa (TENET) 2018 0.29%
169 Starlink 34602 1.38%
170 RESTENA 2602 6.36%
171 China Telecom 4134, 4809 0.19%
172 Exponential-e 25180 0.41%
173 Active Network S.p.A. 197075 13.57%
174 National Informatics Centre 4758 0.18%
175 Academia Sinica Network 9264 0.27%
176 PT Cyberindo Aditama (CBN Internet) 4787 0.76%
177 LENTEL 44030 5.04%
178 green.ch AG 1836 3.85%
179 PowerTech Information Systems AS 5381 1.43%
180 Australian Academic and Research Network (AARNet) 7575 0.21%
181 guifi.net 49835 3.36%
182 TeliaSonera International Carrier 1299 0.75%
183 ATM S.A. 15694 0.41%
184 Faroese Telecom 15389 1.66%
185 Saturn-Internet, ISP 31692 7.20%
186 Nettel Telecomunicações Ltda 53135 1.23%
187 NETIS TELECOM 25592 7.72%
188 Fibertech Networks 16657 0.29%
189 Opera Software ASA 39832 0.88%
190 AMS-IX 1200 81.18%
191 AdNet Telecom 5541 1.70%
192 BIT BV 12859 1.59%
193 Bangalore Broadband Network Pvt Ltd 55947 0.56%
194 Bulgaria NREN 6802 1.37%
195 CESCA 13041 0.55%
196 CZ.NIC 25192 74.70%
197 Claranet 8426 0.36%
198 CloudFlare, Inc. 13335 45.14%
199 Critical Colocation 52342 71.95%
200 Custodian Data Centre 50300 0.24%
201 DataChambers 29765 3.35%
202 DegNet GmbH 20902 16.67%
203 DreamHost 26347 41.58%
204 Duocast BV 31477 0.64%
205 ENTANET International Ltd. 8468 0.12%
206 FirstDigital Telecom 13415 1.29%
207 Free University of Bozen-Bolzano 51708 11.70%
208 IKS GmbH 15725 40.75%
209 ITsjefen AS 44381 1.94%
210 Iowa Network Services 5056 0.13%
211 Jaguar Network 30781 0.13%
212 NAITWAYS 57119 0.69%
213 Neo Telecoms 8218 2.67%
214 NetAssist 29632 10.89%
215 NetNam Corporation 24173 0.20%
216 Netnod 8674 12.91%
217 NineWire Pty LTd 132020 94.19%
218 Opensvit - PEF Fenix VT 39399 1.75%
219 Oquei Provedor 262761 1.28%
220 PCextreme B.V. 48635 34.09%
221 PREGINET 9821 0.99%
222 PT Melvar Lintasnusa 9657 0.30%
223 Quonix Networks 17185 0.89%
224 RAU - UdelaR 1797 2.80%
225 Remex Consulting Pty Limited 55328 62.12%
226 SARENET 3262 0.16%
227 SIDN 1140 68.88%
228 Sauk Valley Community College 13953 90.57%
229 Sify Technologies Limited 9583 0.18%
230 Sistemas Fratec S.A. 262149 10.69%
231 Solido Networks ApS 12617 3.10%
232 SpeedPartner GmbH 34225 99.41%
233 ThaiSarn 3836 94.56%
234 The Kansas Research and Education Network 2495 3.00%
235 Trunk Networks Limited 49375 28.90%
236 University of New Hampshire 11745 1.77%
237 VentraIP Group (Australia) Pty Ltd 45638 72.39%
238 iNES Group 12310 0.84%
239 internet4YOU GmbH & Co. KG 29014 8.35%
240 interscholz Internet Services GmbH & Co. KG 33843 15.35%
241 manitu GmbH 34240 65.55%
242 snowflake productions gmbh 198249 93.61%


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.