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 September 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 48.90%
2 ATT 6389, 7018, 7132 60.68%
3 KDDI 2516 25.48%
4 Verizon Wireless 6167, 22394 75.59%
5 Time Warner Cable 7843, 10796, 11351, 11426, 11427, 12271, 20001 30.59%
6 SoftBank 17676 15.32%
7 T-Mobile USA 21928 72.08%
8 British Sky Broadcasting 5607 72.87%
9 Deutsche Telekom AG 3320 29.37%
10 Telefonica del Peru 6147 13.87%
11 GVT 18881 18.28%
12 SKTelecom 9644 30.85%
13 Cox Communications 22773 22.08%
14 TELUS 852 47.93%
15 OTE SA 6799 37.57%
16 Liberty Global 5089, 6830, 20825, 29562 9.94%
17 Orange Business Services 3215 14.28%
18 Chubu Telecommunications 18126 49.46%
19 Telekom Malaysia 4788 14.92%
20 Free 12322 23.64%
21 Sprint Wireless 3651, 10507 29.44%
22 Orange Poland 5617, 43447 9.48%
23 AT&T Wireless 20057 14.72%
24 CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 31.36%
25 Telenet 6848 55.08%
26 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 54.15%
27 Vivo 10429, 11419, 19182, 26599, 27699 8.00%
28 Swisscom 3303, 6837 42.06%
29 Belgacom 5432 33.73%
30 O2 Czech Republic 5610 30.58%
31 RCS & RDS 8708 12.35%
32 Forthnet 1241 38.99%
33 FPT Telecom 18403 12.23%
34 Rogers Communications 812, 20453 12.93%
35 STNet 7522 45.02%
36 Mediacom Communications 30036 24.17%
37 VOO 12392 58.37%
38 Saudi Telecom Company (STC) 25019, 31177, 39386, 39891, 41426 3.83%
39 Telenor Nordic 2119 7.57%
40 DNA 16086 26.54%
41 Google Fiber 16591 65.62%
42 KPN 1136 8.93%
43 Hughes Network Systems 6621 18.32%
44 Midcontinent Communications 11232 37.00%
45 XS4ALL 3265 60.72%
46 Elion 3249 23.81%
47 Tele2 AB 1257 40.73%
48 Ziggo 9143 8.15%
49 Copel Telecomunicacoes S/A 14868 20.61%
50 its communications Inc.(iTSCOM) 9365 10.32%
51 Fastweb Spa 12874 3.27%
52 Cisco 109 60.60%
53 kt 4766 0.42%
54 Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.20%
55 BH Telecom d.d. Sarajevo 9146 7.40%
56 TIM Brasil 26615 3.99%
57 EPT Luxembourg 6661 22.85%
58 OVH 16276 13.20%
59 Comteco Ltda 27839 25.90%
60 Xfone 018 47956 15.66%
61 Internode 4739 2.87%
62 M1 Limited 4773, 17547 4.10%
63 Get AS, Norway 25400, 41164, 47853, 49455, 51135 6.50%
64 T-Mobile Czech Republic, a.s. 13036 6.25%
65 Indiana University 87 28.09%
66 Maxis Broadband Sdn Bhd 9534 1.80%
67 UNINETT 224 15.48%
68 University of Minnesota 57, 217 43.57%
69 MediaCat Div./Community Netowork Center Inc. 17529 6.83%
70 inexio KGaA 42652 22.95%
71 Virginia Tech 1312 84.01%
72 Elisa 719 17.99%
73 University of Pennsylvania 55 70.25%
74 CESNET 2852 13.11%
75 StarHub 4657, 55430 1.45%
76 Dialog Axiata PLC 18001 4.02%
77 FasterNet Internet Service Provider 28580 23.09%
78 Janet 786 2.61%
79 Louisiana State University 2055 74.70%
80 Kasetsart University 9411 32.86%
81 University of Iowa 3676 57.66%
82 University of Buffalo 3685 58.18%
83 RedIRIS 766 6.06%
84 Deutsche Glasfaser 60294 40.75%
85 Altibox AS 29695 1.63%
86 NYNEX satellite OHG 62023, 200519 65.07%
87 Monash University 56132 25.31%
88 Greek Student Network 197121 26.57%
89 University of South Florida 5661 34.10%
90 Choopa, LLC 20473 2.50%
91 UniNet 4621 17.84%
92 Universidad de Guadalajara 2549 17.39%
93 SWITCH 559 8.36%
94 University Of Hawaii System 6360 25.83%
95 Universidade Federal de Santa Catarina 263300 34.50%
96 FCCN 1930 11.84%
97 NIIF/Hungarnet 1955 12.41%
98 GITN Sdn Berhad 38044 3.56%
99 Rensselaer Polytechnic Institute 91 76.34%
100 CAT TELECOM PCL. 9931 0.85%
101 ARNES 2107 10.00%
102 University of Twente 1133 73.60%
103 Funet 1741 6.22%
104 RENATER 2200 2.00%
105 University of Vermont 1351 61.05%
106 Leibniz Supercomputing Centre 12816 22.70%
107 Cosmote Mobile Telecommunications S.A 29247 3.00%
108 TekSavvy Solutions 5645 0.63%
109 Tulane University 10349 47.50%
110 Telecentro S.A. 27747 0.62%
111 UNESP 53166 25.77%
112 Greek Research & Technology Network 5408 22.71%
113 PoP-SP RNP 1916 1.13%
114 BelWue 553 5.62%
115 SPAWAR 22 80.51%
116 Belnet 2611 3.94%
117 BVNET S.A. 27833 8.10%
118 Electronic Box 1403 4.30%
119 PoP-RS 2716 9.23%
120 Aristotle University of Thessaloniki 5470 40.78%
121 SURFnet 1103 1.69%
122 GARR 137 1.20%
123 AMRES - Serbian National Research and Education Network 13092 11.45%
124 University of California, San Diego 7377 12.27%
125 kwaoo.com 24904 23.94%
126 NTT Communications 2914 1.98%
127 Marist College 6124 71.24%
128 Hurricane Electric 6939 9.51%
129 Jiří štrohalm 197307 43.00%
130 Sonera 1759 0.30%
131 Init7 13030 18.70%
132 SoftLayer Technologies 36351 0.58%
133 Universidade Estadual de Ponta Grossa 53046 85.66%
134 ZeelandNet 15542 2.71%
135 HEAnet 1213 2.96%
136 Premier Communications 53347 13.00%
137 Brno University of Technology 197451 45.80%
138 Universidad Panamericana 13679 77.80%
139 Gustavus Adolphus College 17234 81.42%
140 Karlsruhe Institute of Technology (KIT) 34878 22.12%
141 University of Wisconsin - Madison 59 3.68%
142 Solcon 12414 5.09%
143 University of California, Los Angeles 52 4.16%
144 National Technical University of Athens 3323 26.70%
145 UFSCar 52888 17.11%
146 Jazz Telecom, S.A. 12715 0.13%
147 Digicel Trinidad & Tobago 27800 76.76%
148 AAISP 20712 21.63%
149 Academia Sinica Network 9264 1.91%
150 LITNET 2847 2.01%
151 Georgia Institute of Technology 2637 3.84%
152 Cooperativa Telefónica de Villa Gdor. Galvez Ltda. 11815 4.58%
153 Fundacao Parque Tecnologico Itaipu - Brasil 263083 68.69%
154 PT Cyberindo Aditama (CBN Internet) 4787 1.60%
155 Ponto de Presença da RNP na Bahia 53164 1.47%
156 Makonix 52173 41.65%
157 CNM 10036 0.11%
158 LENTEL 44030 6.35%
159 GlobalConnect 42525 1.15%
160 Australian Academic and Research Network (AARNet) 7575 2.42%
161 PowerTech Information Systems AS 5381 2.13%
162 iway AG 8758 4.08%
163 MonkeyBrains 32329 5.28%
164 XO Communications 2828 0.16%
165 Colt 8220 0.12%
166 TeliaSonera International Carrier 1299 8.96%
167 Storm Internet 13319 4.46%
168 RESTENA 2602 10.74%
169 CJSC Progressive Technologies 35475 3.76%
170 Saturn-Internet, ISP 31692 3.34%
171 green.ch AG 1836 3.16%
172 The Tertiary Education and Research Network of South Africa (TENET) 2018 1.90%
173 Edutel 39309 1.73%
174 NetAssist 29632 5.96%
175 ATM S.A. 15694 0.30%
176 Active Network S.p.A. 197075 11.23%
177 Starlink 34602 1.40%
178 Exponential-e 25180 0.26%
179 Universidad de Ibague 52467 69.61%
180 TCA INFORMATICA LTDA 53137 12.04%
181 Claranet 8426 0.56%
182 guifi.net 49835 3.56%
183 Opera Software ASA 39832 0.10%
184 AMS-IX 1200 78.24%
185 Alhambra Eidos 15450 0.28%
186 Alog Data Centers do Brasil 16397, 26592 0.26%
187 Association tetaneutral.net 197422 1.94%
188 Atlas Networks 21743 0.18%
189 BIT BV 12859 1.37%
190 Bulgaria NREN 6802 2.05%
191 CZ.NIC 25192 91.37%
192 CloudFlare, Inc. 13335 1.81%
193 Critical Colocation 52342 81.59%
194 Cybernet1 21632 6.08%
195 DataChambers 29765 4.29%
196 Datametrix AS 200168 37.15%
197 DegNet GmbH 20902 15.37%
198 DreamHost 26347 58.67%
199 Duocast BV 31477 0.43%
200 FX Networks 9503 0.22%
201 Faculdade de Ciências Aplicadas da Unicamp 53187 0.42%
202 Faircape Communications 37363 3.96%
203 Fibertech Networks 16657 0.28%
204 FirstDigital Telecom 13415 0.85%
205 FranTech Solutions 53667 1.11%
206 Free University of Bozen-Bolzano 51708 14.37%
207 Go6 Institute 198644 76.46%
208 Gotalandsnatet AB 12597 0.22%
209 HOTlink Internet 28661 0.29%
210 Host Virtual, Inc 36236 0.90%
211 IDM 9051 0.32%
212 IKS GmbH 15725 25.60%
213 IP-Max SA 25091 5.12%
214 ITsjefen AS 44381 2.12%
215 JT 8681 0.19%
216 Jaguar Network 30781 3.63%
217 Jolokia Networks? 12182 0.54%
218 KaseNet 199087 9.55%
219 Layer42 Networks 8121 2.74%
220 MaineREN - University of Maine System 557 0.10%
221 Mythic Beasts Ltd 44684 1.27%
222 NBI Systems (NBIS) Ltd. 39396 10.84%
223 NETHINKS GmbH 8319 1.22%
224 NETIS TELECOM 25592 5.15%
225 Neo Telecoms 8218 2.48%
226 NetNam Corporation 24173 0.18%
227 Nettel Telecomunicações Ltda 53135 0.59%
228 NineWire Pty LTd 132020 96.72%
229 Opensvit - PEF Fenix VT 39399 0.20%
230 PCextreme B.V. 48635 53.21%
231 PREGINET 9821 0.30%
232 PT Pasifik Satelit Nusantara 9875 1.77%
233 RAU - UdelaR 1797 0.66%
234 Red Académica de Centros de Investigación y Universidades Nacionales REACCIUN 20312, 27807 6.52%
235 Region 7 ESC 30350 1.63%
236 Remex Consulting Pty Limited 55328 49.55%
237 SARENET 3262 0.17%
238 SIDN 1140 70.43%
239 Sauk Valley Community College 13953 86.75%
240 Signet B.V. 28878 0.36%
241 Sistemas Fratec S.A. 262149 14.79%
242 Solido Networks ApS 12617 1.76%
243 SoloGigabit 56934 0.26%
244 SpeedPartner GmbH 34225 96.64%
245 Sudanese Research and Education Network 37197 20.86%
246 SuomiCom 16302 3.51%
247 SuperInternet Access Pte Ltd 4844 0.43%
248 SupraNet Communications, Inc 4150 0.35%
249 TB Telecom Sp. z o.o. 51155 1.21%
250 TOP-IX Consortium 25309 30.59%
251 TUBITAK ULAKBIM / ULAKNET 8517 0.76%
252 ThaiSarn 3836 58.82%
253 The Kansas Research and Education Network 2495 0.37%
254 Trunk Networks Limited 49375 9.46%
255 UNAM 278 0.20%
256 UNET 29396 0.17%
257 US Dept of Transportation 2576 0.49%
258 Universidade Federal do Rio Grande do Sul 19200 8.16%
259 University of New Hampshire 11745 1.99%
260 Utility Line Italia srl 9026 0.68%
261 VentraIP Group (Australia) Pty Ltd 45638 21.65%
262 Vescnet 262792 0.24%
263 Vmax Net Telecomunicacoes do Brasil 28277 0.54%
264 WINTECH Communications, Inc. 17683 0.16%
265 Xirra GmbH 51191 0.22%
266 internet4YOU GmbH & Co. KG 29014 3.55%
267 interscholz Internet Services GmbH & Co. KG 33843 16.30%
268 manitu GmbH 34240 22.47%
269 mur.at - Verein zur Frderung von Netzkwerkkunst 39837 66.44%
270 next layer Telekommunikationsdienstleistungs- und BeratungsGmbH 1764 0.31%
271 prgmr.com 47066 4.06%
272 snowflake productions gmbh 198249 58.50%


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.