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, 9th November 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 49.00%
2 ATT 6389, 7018, 7132 58.56%
3 KDDI 2516 25.09%
4 Verizon Wireless 6167, 22394 77.13%
5 Charter Communications 7843, 10796, 11351, 11426, 11427, 12271, 20001, 20115, 33363 21.22%
6 SoftBank 17676 14.88%
7 T-Mobile USA 21928 74.47%
8 British Sky Broadcasting 5607 71.86%
9 Deutsche Telekom AG 3320 33.70%
10 Cox Communications 22773 29.93%
11 SKTelecom 9644 33.92%
12 Rogers Communications 812, 20453 44.58%
13 OTE SA 6799 43.59%
14 TELUS 852 40.67%
15 Liberty Global 5089, 6830, 20825, 29562 9.35%
16 GVT 18881 14.34%
17 FPT Telecom 18403 21.38%
18 Orange Business Services 3215 16.04%
19 AT&T Wireless 20057 18.17%
20 Telekom Malaysia 4788 14.70%
21 Telefonica del Peru 6147 16.65%
22 Sprint Wireless 3651, 10507 30.80%
23 Vivo 10429, 11419, 19182, 26599, 27699 16.92%
24 Free 12322 24.05%
25 Chubu Telecommunications 18126 45.79%
26 Orange Poland 5617, 43447 10.47%
27 Telenet 6848 57.00%
28 CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 29.26%
29 Belgacom 5432 36.38%
30 O2 Czech Republic 5610 31.64%
31 Swisscom 3303, 6837 43.27%
32 Forthnet 1241 42.23%
33 RCS & RDS 8708 12.95%
34 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 49.92%
35 Saudi Telecom Company (STC) 25019, 31177, 39386, 39891, 41426 4.01%
36 STNet 7522 40.69%
37 Mediacom Communications 30036 24.51%
38 KPN 1136 13.13%
39 Telenor Nordic 2119 8.15%
40 VOO 12392 59.16%
41 Google Fiber 16591 66.70%
42 DNA 16086 27.07%
43 Fastweb Spa 12874 5.31%
44 XS4ALL 3265 62.86%
45 TIM Brasil 26615 12.14%
46 Midcontinent Communications 11232 36.61%
47 Hughes Network Systems 6621 19.62%
48 Ziggo 9143 8.31%
49 kt 4766 0.53%
50 Elion 3249 25.10%
51 Tele2 AB 1257 41.02%
52 Copel Telecomunicacoes S/A 14868 16.94%
53 its communications Inc.(iTSCOM) 9365 9.29%
54 Xfone 018 47956 23.71%
55 Telecentro S.A. 27747 5.25%
56 BH Telecom d.d. Sarajevo 9146 10.33%
57 Cisco 109 59.67%
58 Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.27%
59 M1 Limited 4773, 17547 5.74%
60 EPT Luxembourg 6661 22.99%
61 Internode 4739 3.09%
62 Comteco Ltda 27839 27.28%
63 Janet 786 4.07%
64 Maxis Broadband Sdn Bhd 9534 1.92%
65 Get AS, Norway 25400, 41164, 47853, 49455, 51135 6.80%
66 CESNET 2852 16.56%
67 T-Mobile Czech Republic, a.s. 13036 6.73%
68 UNINETT 224 16.15%
69 Indiana University 87 25.08%
70 StarHub 4657, 55430 1.79%
71 University of Minnesota 57, 217 44.66%
72 inexio KGaA 42652 23.38%
73 Dialog Axiata PLC 18001 3.78%
74 OVH 16276 13.23%
75 Liquid Telecommunications 30844, 30969 11.54%
76 University of Pennsylvania 55 70.77%
77 Virginia Tech 1312 82.95%
78 Elisa 719 19.04%
79 FasterNet Internet Service Provider 28580 24.73%
80 MediaCat Div./Community Netowork Center Inc. 17529 5.62%
81 RedIRIS 766 5.70%
82 Deutsche Glasfaser 60294 45.52%
83 University of Buffalo 3685 63.17%
84 Altibox AS 29695 1.65%
85 Louisiana State University 2055 71.31%
86 Kasetsart University 9411 19.99%
87 YTL Communications Sdn Bhd 45960 5.60%
88 University of Iowa 3676 56.75%
89 ARNES 2107 15.25%
90 Brno University of Technology 197451 60.84%
91 FCCN 1930 14.43%
92 Cosmote Mobile Telecommunications S.A 29247 4.87%
93 TUBITAK ULAKBIM / ULAKNET 8517 0.82%
94 NYNEX satellite OHG 62023, 200519 68.04%
95 SWITCH 559 8.40%
96 Greek Student Network 197121 29.01%
97 Leibniz Supercomputing Centre 12816 25.53%
98 BVNET S.A. 27833 11.49%
99 Universidad de Guadalajara 2549 18.98%
100 University of South Florida 5661 32.36%
101 UniNet 4621 14.54%
102 Monash University 56132 33.50%
103 University of California, San Diego 7377 19.33%
104 BelWue 553 6.07%
105 Belnet 2611 5.05%
106 NIIF/Hungarnet 1955 13.38%
107 Rensselaer Polytechnic Institute 91 77.81%
108 CAT TELECOM PCL. 9931 0.81%
109 University of Vermont 1351 68.11%
110 University of Twente 1133 74.45%
111 University Of Hawaii System 6360 21.80%
112 PoP-SP RNP 1916 1.79%
113 GITN Sdn Berhad 38044 3.70%
114 Tulane University 10349 48.94%
115 TekSavvy Solutions 5645 0.61%
116 Aristotle University of Thessaloniki 5470 41.66%
117 Choopa, LLC 20473 2.95%
118 UNESP 53166 34.17%
119 Universidade Federal de Santa Catarina 263300 30.49%
120 Funet 1741 6.50%
121 Electronic Box 1403 3.53%
122 Greek Research & Technology Network 5408 23.28%
123 RENATER 2200 1.26%
124 Solcon 12414 6.59%
125 GARR 137 1.21%
126 kwaoo.com 24904 30.65%
127 AMRES - Serbian National Research and Education Network 13092 9.57%
128 Jiří štrohalm 197307 52.37%
129 SURFnet 1103 0.99%
130 Init7 13030 19.90%
131 EE 12576 0.36%
132 Marist College 6124 66.68%
133 PoP-RS 2716 5.33%
134 ZeelandNet 15542 2.61%
135 University of California, Los Angeles 52 4.49%
136 University of Wisconsin - Madison 59 4.33%
137 SoftLayer Technologies 36351 0.98%
138 Premier Communications 53347 13.09%
139 Universidad Panamericana 13679 85.99%
140 HEAnet 1213 2.26%
141 National Technical University of Athens 3323 27.12%
142 Hurricane Electric 6939 11.79%
143 Karlsruhe Institute of Technology (KIT) 34878 25.35%
144 NTT Communications 2914 1.45%
145 Gustavus Adolphus College 17234 79.80%
146 Sonera 1759 0.21%
147 AAISP 20712 20.17%
148 Jazz Telecom, S.A. 12715 0.12%
149 Universidade Estadual de Ponta Grossa 53046 76.79%
150 Makonix 52173 39.55%
151 Georgia Institute of Technology 2637 4.10%
152 MonkeyBrains 32329 6.97%
153 LITNET 2847 2.47%
154 GlobalConnect 42525 1.28%
155 iway AG 8758 3.94%
156 RESTENA 2602 5.43%
157 PowerTech Information Systems AS 5381 2.08%
158 Digicel Trinidad & Tobago 27800 70.70%
159 Academia Sinica Network 9264 1.90%
160 Fundacao Parque Tecnologico Itaipu - Brasil 263083 55.60%
161 CJSC Progressive Technologies 35475 3.74%
162 The Tertiary Education and Research Network of South Africa (TENET) 2018 2.05%
163 UFSCar 52888 10.43%
164 XO Communications 2828 0.26%
165 Spectrum Networks 11404 0.18%
166 Colt 8220 0.13%
167 Saturn-Internet, ISP 31692 5.28%
168 Storm Internet 13319 5.31%
169 Edutel 39309 1.75%
170 Starlink 34602 1.27%
171 SPAWAR 22 88.15%
172 TeliaSonera International Carrier 1299 9.43%
173 LENTEL 44030 4.36%
174 Australian Academic and Research Network (AARNet) 7575 1.28%
175 National Informatics Centre 4758 0.13%
176 NetAssist 29632 10.49%
177 Universidad de Ibague 52467 69.04%
178 Sudanese Research and Education Network 37197 16.51%
179 Ponto de Presença da RNP na Bahia 53164 1.11%
180 Exponential-e 25180 0.27%
181 PT Cyberindo Aditama (CBN Internet) 4787 0.56%
182 NETIS TELECOM 25592 5.21%
183 Cape Connect Internet (Pty) Ltd 37640 32.91%
184 IDM 9051 1.19%
185 green.ch AG 1836 3.23%
186 Active Network S.p.A. 197075 12.34%
187 guifi.net 49835 3.29%
188 Integra 7385 0.14%
189 ATM S.A. 15694 0.10%
190 Opera Software ASA 39832 0.26%
191 AMS-IX 1200 62.39%
192 ASDASD srl / POPWIFI 28929 0.72%
193 AdNet Telecom 5541 0.76%
194 Alcom 3238 2.16%
195 Alog Data Centers do Brasil 16397, 26592 0.56%
196 Association tetaneutral.net 197422 3.17%
197 Atlas Networks 21743 0.10%
198 BIT BV 12859 1.49%
199 Bulgaria NREN 6802 2.26%
200 CESCA 13041 0.32%
201 CZ.NIC 25192 92.51%
202 China Telecom 4134, 4809 0.12%
203 Claranet 8426 0.37%
204 CloudFlare, Inc. 13335 0.89%
205 Colocation America 21769 1.12%
206 Critical Colocation 52342 77.33%
207 Cybernet1 21632 7.23%
208 DataChambers 29765 5.17%
209 Datametrix AS 200168 24.90%
210 DegNet GmbH 20902 19.48%
211 DirectVPS 29028 1.26%
212 DreamHost 26347 41.44%
213 Duocast BV 31477 0.26%
214 ENTANET International Ltd. 8468 0.13%
215 Ehiweb.it 43989 0.16%
216 Energy Group Networks 18779 0.13%
217 Excellent Hosting Sweden AB 50986 1.11%
218 FX Networks 9503 0.43%
219 Faircape Communications 37363 8.11%
220 Faroese Telecom 15389 0.13%
221 Fibertech Networks 16657 0.35%
222 FirstDigital Telecom 13415 2.04%
223 FranTech Solutions 53667 3.13%
224 Free University of Bozen-Bolzano 51708 10.49%
225 Go6 Institute 198644 83.68%
226 Gotalandsnatet AB 12597 0.24%
227 Host Virtual, Inc 36236 1.15%
228 IKS GmbH 15725 56.01%
229 IP-Max SA 25091 0.64%
230 ITsjefen AS 44381 2.36%
231 JT 8681 0.14%
232 Jaguar Network 30781 2.32%
233 KaseNet 199087 6.16%
234 Layer42 Networks 8121 0.20%
235 Mythic Beasts Ltd 44684 1.42%
236 NETHINKS GmbH 8319 0.25%
237 NYI 11403 1.41%
238 Neo Telecoms 8218 2.40%
239 Nettel Telecomunicações Ltda 53135 0.25%
240 Netwerkvereniging Coloclue 8283 0.14%
241 Nexusway srl 199947 12.46%
242 NineWire Pty LTd 132020 96.93%
243 Opensvit - PEF Fenix VT 39399 0.78%
244 PCextreme B.V. 48635 63.23%
245 PREGINET 9821 0.90%
246 PT Melvar Lintasnusa 9657 0.36%
247 PT Pasifik Satelit Nusantara 9875 1.24%
248 RAU - UdelaR 1797 2.46%
249 Red Académica de Centros de Investigación y Universidades Nacionales REACCIUN 20312, 27807 0.48%
250 Region 7 ESC 30350 6.76%
251 Remex Consulting Pty Limited 55328 28.71%
252 SARENET 3262 0.17%
253 SIDN 1140 71.68%
254 Sauk Valley Community College 13953 85.57%
255 Sify Technologies Limited 9583 0.11%
256 Signet B.V. 28878 0.31%
257 Sistemas Fratec S.A. 262149 31.90%
258 Solido Networks ApS 12617 5.97%
259 SpeedPartner GmbH 34225 99.11%
260 SuomiCom 16302 1.92%
261 SuperInternet Access Pte Ltd 4844 0.37%
262 SupraNet Communications, Inc 4150 0.18%
263 TB Telecom Sp. z o.o. 51155 0.21%
264 TOP-IX Consortium 25309 61.82%
265 TRIPLET BROADBAND 45758 0.63%
266 ThaiSarn 3836 97.29%
267 Thammasat University 37992 0.25%
268 Transmog Inc. SAL CYBERIA 24634 0.12%
269 Trunk Networks Limited 49375 23.49%
270 UFSC - Universidade Federal de Santa Catarina - Brazil 11242 0.11%
271 UNAM 278 0.18%
272 UNET 29396 0.15%
273 University of New Hampshire 11745 1.17%
274 Utility Line Italia srl 9026 0.18%
275 VTC - INTECOM 38248 1.01%
276 VentraIP Group (Australia) Pty Ltd 45638 50.25%
277 Vescnet 262792 2.59%
278 Vmax Net Telecomunicacoes do Brasil 28277 0.24%
279 Voxel / Internap 29791 0.56%
280 edpnet 9031 0.84%
281 iNES Group 12310 0.34%
282 internet4YOU GmbH & Co. KG 29014 4.08%
283 interscholz Internet Services GmbH & Co. KG 33843 19.62%
284 manitu GmbH 34240 4.19%
285 mc.net 6479 3.73%
286 next layer Telekommunikationsdienstleistungs- und BeratungsGmbH 1764 0.37%
287 prgmr.com 47066 9.33%
288 snowflake productions gmbh 198249 93.60%


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.