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 August 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 48.30%
2 ATT 6389, 7018, 7132 60.30%
3 KDDI 2516 26.06%
4 Verizon Wireless 6167, 22394 75.03%
5 Time Warner Cable 7843, 10796, 11351, 11426, 11427, 12271, 20001 30.00%
6 SoftBank 17676 14.52%
7 T-Mobile USA 21928 67.33%
8 Deutsche Telekom AG 3320 30.94%
9 British Sky Broadcasting 5607 71.69%
10 SKTelecom 9644 31.41%
11 Cox Communications 22773 21.17%
12 GVT 18881 15.56%
13 Liberty Global 5089, 6830, 20825, 29562 9.64%
14 Chubu Telecommunications 18126 49.52%
15 TELUS 852 46.98%
16 OTE SA 6799 35.07%
17 Telekom Malaysia 4788 14.88%
18 Orange Business Services 3215 12.41%
19 Free 12322 23.56%
20 Telenet 6848 56.08%
21 Telefonica del Peru 6147 15.93%
22 Orange Poland 5617, 43447 9.38%
23 CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 45.38%
24 AT&T Wireless 20057 12.65%
25 Sprint Wireless 3651, 10507 26.56%
26 RCS & RDS 8708 11.74%
27 Belgacom 5432 33.92%
28 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 56.20%
29 Vivo 10429, 11419, 19182, 26599, 27699 6.85%
30 Swisscom 3303, 6837 43.34%
31 O2 Czech Republic 5610 30.02%
32 Forthnet 1241 39.19%
33 STNet 7522 48.04%
34 Rogers Communications 812, 20453 10.84%
35 Saudi Telecom Company (STC) 25019, 31177, 39386, 39891, 41426 4.15%
36 Mediacom Communications 30036 23.08%
37 VOO 12392 60.20%
38 Google Fiber 16591 66.43%
39 DNA 16086 27.58%
40 Telenor Nordic 2119 5.35%
41 FPT Telecom 18403 2.63%
42 Tele2 AB 1257 25.56%
43 XS4ALL 3265 62.34%
44 Hughes Network Systems 6621 17.26%
45 Ziggo 9143 8.36%
46 Midcontinent Communications 11232 36.65%
47 KPN 1136 6.59%
48 its communications Inc.(iTSCOM) 9365 10.15%
49 Elion 3249 22.62%
50 Copel Telecomunicacoes S/A 14868 17.09%
51 Fastweb Spa 12874 2.90%
52 kt 4766 0.28%
53 Get AS, Norway 25400, 41164, 47853, 49455, 51135 8.85%
54 Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.17%
55 Cisco 109 47.86%
56 TIM Brasil 26615 3.23%
57 OVH 16276 12.44%
58 BH Telecom d.d. Sarajevo 9146 8.14%
59 M1 Limited 4773, 17547 4.28%
60 Comteco Ltda 27839 22.83%
61 Internode 4739 2.76%
62 EPT Luxembourg 6661 21.19%
63 Xfone 018 47956 9.45%
64 StarHub 4657, 55430 2.47%
65 inexio KGaA 42652 24.21%
66 Maxis Broadband Sdn Bhd 9534 1.67%
67 T-Mobile Czech Republic, a.s. 13036 5.62%
68 MediaCat Div./Community Netowork Center Inc. 17529 7.64%
69 Janet 786 4.25%
70 FasterNet Internet Service Provider 28580 19.59%
71 Dialog Axiata PLC 18001 4.58%
72 Deutsche Glasfaser 60294 40.37%
73 Altibox AS 29695 1.61%
74 UNINETT 224 14.51%
75 Elisa 719 16.46%
76 NYNEX satellite OHG 62023, 200519 62.64%
77 University of Minnesota 57, 217 43.83%
78 Choopa, LLC 20473 6.14%
79 Indiana University 87 24.58%
80 CESNET 2852 11.90%
81 SWITCH 559 10.47%
82 University of Pennsylvania 55 46.57%
83 TUBITAK ULAKBIM / ULAKNET 8517 1.09%
84 Virginia Tech 1312 71.11%
85 Kasetsart University 9411 38.06%
86 Belnet 2611 4.77%
87 Leibniz Supercomputing Centre 12816 21.23%
88 Universidade Federal de Santa Catarina 263300 30.74%
89 University of Iowa 3676 30.84%
90 UNESP 53166 27.51%
91 BelWue 553 7.53%
92 BVNET S.A. 27833 5.34%
93 Greek Student Network 197121 25.25%
94 SoftLayer Technologies 36351 0.94%
95 University of California, San Diego 7377 14.33%
96 ARNES 2107 14.78%
97 TekSavvy Solutions 5645 0.44%
98 Electronic Box 1403 3.79%
99 SPAWAR 22 57.33%
100 University Of Hawaii System 6360 22.46%
101 Hurricane Electric 6939 11.89%
102 PoP-RS 2716 7.40%
103 UniNet 4621 19.89%
104 Jiří štrohalm 197307 55.42%
105 University of Twente 1133 71.41%
106 ZeelandNet 15542 2.35%
107 GITN Sdn Berhad 38044 3.59%
108 Louisiana State University 2055 71.00%
109 University of Buffalo 3685 38.31%
110 Solcon 12414 5.24%
111 Sonera 1759 0.23%
112 Monash University 56132 24.54%
113 Integra 7385 0.83%
114 PoP-SP RNP 1916 0.88%
115 FCCN 1930 9.83%
116 University of South Florida 5661 24.99%
117 Premier Communications 53347 14.98%
118 Init7 13030 20.17%
119 Universidade Estadual de Ponta Grossa 53046 73.72%
120 GlobalConnect 42525 1.17%
121 University of Wisconsin - Madison 59 5.08%
122 AAISP 20712 24.48%
123 Funet 1741 5.73%
124 UFSCar 52888 16.62%
125 University of California, Los Angeles 52 5.11%
126 AMRES - Serbian National Research and Education Network 13092 10.29%
127 Jazz Telecom, S.A. 12715 0.12%
128 Brno University of Technology 197451 31.89%
129 Karlsruhe Institute of Technology (KIT) 34878 24.72%
130 Universidad Panamericana 13679 79.85%
131 Tulane University 10349 31.76%
132 Greek Research & Technology Network 5408 15.27%
133 Georgia Institute of Technology 2637 8.15%
134 Makonix 52173 26.97%
135 Rensselaer Polytechnic Institute 91 56.36%
136 RENATER 2200 1.97%
137 Cooperativa Telefónica de Villa Gdor. Galvez Ltda. 11815 3.87%
138 Colt 8220 0.11%
139 Digicel Trinidad & Tobago 27800 75.74%
140 RedIRIS 766 2.53%
141 PowerTech Information Systems AS 5381 3.06%
142 University of Vermont 1351 41.82%
143 NIIF/Hungarnet 1955 8.52%
144 LENTEL 44030 6.45%
145 GARR 137 1.31%
146 TeliaSonera International Carrier 1299 4.75%
147 Storm Internet 13319 4.78%
148 MonkeyBrains 32329 5.56%
149 PT Cyberindo Aditama (CBN Internet) 4787 1.04%
150 Ponto de Presença da RNP na Bahia 53164 1.99%
151 CNM 10036 0.11%
152 Edutel 39309 2.09%
153 green.ch AG 1836 4.11%
154 National Knowledge Network 9885, 55824, 55847 0.12%
155 CAT TELECOM PCL. 9931 0.44%
156 iway AG 8758 3.94%
157 The Tertiary Education and Research Network of South Africa (TENET) 2018 2.32%
158 HEAnet 1213 3.47%
159 Fundacao Parque Tecnologico Itaipu - Brasil 263083 74.99%
160 RESTENA 2602 11.72%
161 XO Communications 2828 0.19%
162 CJSC Progressive Technologies 35475 3.02%
163 SURFnet 1103 1.67%
164 ATM S.A. 15694 0.42%
165 Starlink 34602 1.17%
166 NetAssist 29632 15.34%
167 DegNet GmbH 20902 20.52%
168 Saturn-Internet, ISP 31692 3.80%
169 UNAM 278 0.43%
170 Active Network S.p.A. 197075 8.69%
171 Universidad de Ibague 52467 74.02%
172 kwaoo.com 24904 6.05%
173 Exponential-e 25180 0.23%
174 Marist College 6124 74.31%
175 AMS-IX 1200 78.29%
176 ASDASD srl / POPWIFI 28929 0.25%
177 Academia Sinica Network 9264 1.77%
178 Alcom 3238 2.37%
179 Alog Data Centers do Brasil 16397, 26592 0.20%
180 Association tetaneutral.net 197422 0.55%
181 Atlas Networks 21743 0.47%
182 Australian Academic and Research Network (AARNet) 7575 0.96%
183 BIT BV 12859 0.97%
184 Bulgaria NREN 6802 0.41%
185 CICA/Junta de Andalucía 198096 0.27%
186 CZ.NIC 25192 98.02%
187 China Telecom 4134, 4809 0.15%
188 Claranet 8426 0.82%
189 CloudFlare, Inc. 13335 21.79%
190 Critical Colocation 52342 69.57%
191 Cybera Inc 15296 0.24%
192 Cybernet1 21632 5.68%
193 DataChambers 29765 3.12%
194 Datametrix AS 200168 36.07%
195 Defense Research and Engineering Network 668 100.00%
196 DreamHost 26347 42.88%
197 Duocast BV 31477 0.70%
198 EGATE Networks Inc. 13657 0.43%
199 ENTANET International Ltd. 8468 0.14%
200 Ehiweb.it 43989 1.43%
201 Energy Group Networks 18779 0.25%
202 Exa Networks Limited 30740 0.63%
203 FX Networks 9503 0.34%
204 Faculdade de Ciências Aplicadas da Unicamp 53187 0.31%
205 Fibertech Networks 16657 0.43%
206 FidoNet 8282 1.19%
207 FirstDigital Telecom 13415 0.70%
208 FranTech Solutions 53667 7.65%
209 Free University of Bozen-Bolzano 51708 38.97%
210 Go6 Institute 198644 50.57%
211 Gotalandsnatet AB 12597 0.36%
212 Gustavus Adolphus College 17234 65.28%
213 Host Virtual, Inc 36236 0.17%
214 ICT Valle Umbra 15605 0.12%
215 IDM 9051 0.26%
216 IKS GmbH 15725 62.67%
217 IP-Max SA 25091 6.90%
218 JT 8681 0.17%
219 Jaguar Network 30781 1.61%
220 Jolokia Networks? 12182 0.80%
221 LITNET 2847 2.04%
222 Layer42 Networks 8121 0.75%
223 MaineREN - University of Maine System 557 0.16%
224 Miconet Sp. z o.o. 35007 0.25%
225 NBI Systems (NBIS) Ltd. 39396 5.90%
226 NET.COM TELECOMUNICAÇÕES LTDA EPP 28131 0.76%
227 NTT Communications 2914 0.85%
228 Neo Telecoms 8218 2.63%
229 Netnod 8674 66.99%
230 Nettel Telecomunicações Ltda 53135 0.77%
231 NineWire Pty LTd 132020 93.68%
232 Opensvit - PEF Fenix VT 39399 2.85%
233 PCextreme B.V. 48635 26.13%
234 PREGINET 9821 0.83%
235 PT Pasifik Satelit Nusantara 9875 1.08%
236 RAU - UdelaR 1797 3.29%
237 Red Académica de Centros de Investigación y Universidades Nacionales REACCIUN 20312, 27807 1.06%
238 Region 7 ESC 30350 6.61%
239 SARENET 3262 0.22%
240 Sauk Valley Community College 13953 94.84%
241 Sify Technologies Limited 9583 0.16%
242 Signet B.V. 28878 0.40%
243 Sistemas Fratec S.A. 262149 14.87%
244 Solido Networks ApS 12617 2.22%
245 SoloGigabit 56934 0.61%
246 SpeedPartner GmbH 34225 98.79%
247 Sudanese Research and Education Network 37197 17.74%
248 SuomiCom 16302 0.94%
249 SuperInternet Access Pte Ltd 4844 0.86%
250 SupraNet Communications, Inc 4150 0.12%
251 ThaiSarn 3836 87.32%
252 Thor Datacenter 50613 7.12%
253 Transmog Inc. SAL CYBERIA 24634 0.10%
254 Trunk Networks Limited 49375 12.86%
255 UNET 29396 0.39%
256 US Dept of Transportation 2576 0.17%
257 Universidad de Guadalajara 2549 8.88%
258 Universidade Federal do Rio Grande do Sul 19200 2.87%
259 University of New Hampshire 11745 10.76%
260 Utility Line Italia srl 9026 0.50%
261 VentraIP Group (Australia) Pty Ltd 45638 53.75%
262 Vescnet 262792 0.12%
263 Vmax Net Telecomunicacoes do Brasil 28277 0.36%
264 Voxel / Internap 29791 0.42%
265 Xirra GmbH 51191 1.23%
266 Zimcom Internet Solutions, Inc 30059 11.15%
267 next layer Telekommunikationsdienstleistungs- und BeratungsGmbH 1764 0.33%
268 snowflake productions gmbh 198249 97.53%


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.