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, 13th September 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 61.57%
2 KDDI 2516 33.61%
3 ATT 6389, 7018, 7132 72.06%
4 SoftBank 17676 24.55%
5 RELIANCE JIO INFOCOMM LTD 55836, 64049 83.63%
6 Charter Communications 7843, 10796, 11351, 11426, 11427, 12271, 20001, 20115, 33363 29.13%
7 T-Mobile USA 21928 89.28%
8 Verizon Wireless 6167, 22394 83.47%
9 Deutsche Telekom AG 3320 52.38%
10 British Sky Broadcasting 5607 82.29%
11 SKTelecom 9644 58.12%
12 Liberty Global 5089, 6830, 20825, 29562 18.32%
13 OTE SA 6799 55.40%
14 Orange Business Services 3215 32.01%
15 Cox Communications 22773 40.71%
16 AT&T Wireless 20057 46.55%
17 TELUS 852 53.37%
18 Rogers Communications 812, 20453 58.66%
19 Vivo 10429, 11419, 19182, 26599, 27699 42.19%
20 Orange Poland 5617, 43447 13.71%
21 FPT Telecom 18403 30.19%
22 Free 12322 35.69%
23 GVT 18881 35.71%
24 Sprint Wireless 3651, 10507 56.40%
25 Chubu Telecommunications 18126 38.72%
26 Telekom Malaysia 4788 23.53%
27 TELMEX 8151 10.77%
28 Telenet 6848 69.63%
29 Forthnet 1241 50.39%
30 Belgacom 5432 51.23%
31 VNPT 45899 6.77%
32 Swisscom 3303, 6837 46.07%
33 O2 Czech Republic 5610 44.92%
34 RCS & RDS 8708 20.69%
35 Telefonica del Peru 6147 16.85%
36 STNet 7522 61.64%
37 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 54.06%
38 Telenor Nordic 2119 24.26%
39 TIM Brasil 26615 41.53%
40 KPN 1136 19.56%
41 Mediacom Communications 30036 34.42%
42 Telecentro S.A. 27747 38.47%
43 DNA 16086 42.75%
44 Hughes Network Systems 6621 41.54%
45 VOO 12392 61.02%
46 Google Fiber 16591 80.11%
47 kt 4766 0.67%
48 Saudi Telecom Company (STC) 25019, 31177, 39386, 39891, 41426 5.01%
49 Fastweb Spa 12874 8.79%
50 Tele2 AB 1257 34.89%
51 XS4ALL 3265 72.66%
52 Elion 3249 41.69%
53 MTC-Mobile Telecommunications Company-Zain-KSA 43766 25.01%
54 Xfone 018 47956 37.43%
55 its communications Inc.(iTSCOM) 9365 8.13%
56 Ziggo 9143 6.47%
57 Midcontinent Communications 11232 37.74%
58 Cosmote Mobile Telecommunications S.A 29247 34.72%
59 BH Telecom d.d. Sarajevo 9146 17.08%
60 Copel Telecomunicacoes S/A 14868 43.68%
61 EE 12576 4.37%
62 Maxis Broadband Sdn Bhd 9534 5.24%
63 Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.36%
64 Dialog Axiata PLC 18001 14.41%
65 Internode 4739 8.29%
66 EPT Luxembourg 6661 34.20%
67 Cabo Telecom 28220 51.74%
68 MediaCat Div./Community Netowork Center Inc. 17529 13.89%
69 inexio KGaA 42652 39.53%
70 M1 Limited 4773, 17547 10.13%
71 T-Mobile Czech Republic, a.s. 13036 10.28%
72 CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 25.60%
73 Comteco Ltda 27839 34.37%
74 StarHub 4657, 55430 3.20%
75 eircom 5466 11.58%
76 Cablevisión Fibertel 10318 2.80%
77 Cisco 109 43.91%
78 OVH 16276 9.79%
79 Liquid Telecommunications 30844, 30969 15.73%
80 Deutsche Glasfaser 60294 41.25%
81 Companhia de Telecomunicações de Macau S.A.R.L. 4609 5.69%
82 Get AS, Norway 25400, 41164, 47853, 49455, 51135 3.66%
83 TekSavvy Solutions 5645 2.40%
84 YTL Communications Sdn Bhd 45960 7.12%
85 Elisa 719 2.93%
86 Altibox AS 29695 1.54%
87 UniNet 4621 14.60%
88 NYNEX satellite OHG 62023, 200519 74.89%
89 University of Pennsylvania 55 82.69%
90 Indiana University 87 70.70%
91 CESNET 2852 16.71%
92 Monash University 56132 25.92%
93 Virginia Tech 1312 85.63%
94 University of Buffalo 3685 75.10%
95 Choopa, LLC 20473 4.92%
96 Kasetsart University 9411 44.00%
97 BVNET S.A. 27833 24.26%
98 University of Minnesota 57, 217 58.84%
99 Janet 786 1.28%
100 GITN Sdn Berhad 38044 7.84%
101 UNINETT 224 13.17%
102 NIIF/Hungarnet 1955 13.34%
103 University of Iowa 3676 78.25%
104 Solcon 12414 11.65%
105 Jiří štrohalm 197307 50.42%
106 SoftLayer Technologies 36351 1.15%
107 kwaoo.com 24904 28.39%
108 University of South Florida 5661 56.72%
109 Louisiana State University 2055 60.27%
110 University of Vermont 1351 74.31%
111 Skymesh 7477 11.25%
112 SuperCSI 2506 77.45%
113 Init7 13030 17.20%
114 Rensselaer Polytechnic Institute 91 63.69%
115 Electronic Box 1403 2.19%
116 Brno University of Technology 197451 46.45%
117 BelWue 553 6.90%
118 Tulane University 10349 62.15%
119 ZeelandNet 15542 3.16%
120 Makonix 52173 54.92%
121 Sonera 1759 0.27%
122 ARNES 2107 16.08%
123 University of the Philippines Diliman 23862 34.53%
124 Marist College 6124 77.84%
125 Association tetaneutral.net 197422 74.56%
126 University of Twente 1133 55.52%
127 Leibniz Supercomputing Centre 12816 22.87%
128 Alcom 3238 12.30%
129 SWITCH 559 8.11%
130 Greek Research & Technology Network 5408 3.51%
131 AAISP 20712 21.46%
132 GlobalConnect 42525 1.72%
133 MonkeyBrains 32329 12.01%
134 National Informatics Centre 4758 1.03%
135 Gustavus Adolphus College 17234 87.53%
136 National Knowledge Network 9885, 55824, 55847 0.19%
137 Premier Communications 53347 10.89%
138 TUBITAK ULAKBIM / ULAKNET 8517 1.01%
139 Funet 1741 5.06%
140 LENTEL 44030 9.75%
141 Belnet 2611 4.62%
142 FCCN 1930 16.35%
143 guifi.net 49835 6.70%
144 University of California, Los Angeles 52 11.65%
145 Hurricane Electric 6939 0.84%
146 AMRES - Serbian National Research and Education Network 13092 10.34%
147 iway AG 8758 4.17%
148 Storm Internet 13319 7.66%
149 Edutel 39309 2.19%
150 Digicel Trinidad & Tobago 27800 70.83%
151 Justweb Telecomunicacoes LTDA 264552 11.56%
152 Karlsruhe Institute of Technology (KIT) 34878 35.93%
153 Aristotle University of Thessaloniki 5470 33.70%
154 University Of Hawaii System 6360 20.83%
155 Faroese Telecom 15389 3.08%
156 Sudanese Research and Education Network 37197 27.38%
157 Academia Sinica Network 9264 1.68%
158 SURFnet 1103 1.67%
159 Starlink 34602 1.49%
160 RENATER 2200 0.74%
161 RESTENA 2602 18.23%
162 University of California, San Diego 7377 15.25%
163 RedIRIS 766 3.42%
164 Aptus Solutions 37349 7.11%
165 China Telecom 4134, 4809 0.45%
166 HEAnet 1213 2.42%
167 National Technical University of Athens 3323 67.49%
168 PoP-RS 2716 17.47%
169 TRIPLET BROADBAND 45758 24.33%
170 UNAM 278 4.51%
171 Universidad Panamericana 13679 88.18%
172 Universidad de Guadalajara 2549 24.67%


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.

APNIC: APNIC recruits random measurements of IPv6 capability and preference through advertisements placed in web sites worldwide. The advert runs specially crafted HTML5/Javascript and measures a range of properties across wired, wireless and cellular networks. Per-Economy and Per-ASN daily totals are calculated through the RIR delegation stats and daily BGP dumps to map origin-as and economy of registration of each tested clients IP addresses. The measurement has run continuously since 2010 and currently collects around 10 million samples per day. Further information is available here.

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.