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 April 2015 (notes)

(Hover over network name to see deployment trends for the Top 10)

Participating Network ASN(s) IPv6 deployment
ATT 6389, 7018, 7132 46.08% 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 33.11% 2
KDDI 2516 17.07% 3
Verizon Wireless 6167, 22394 66.05% 4
Deutsche Telekom AG 3320 29.19% 5
Time Warner Cable 7843, 10796, 11351, 11426, 11427, 12271, 20001 13.35% 6
Free 12322 28.94% 8
T-Mobile USA 21928 53.57% 7
Telefonica del Peru 6147 13.48% 9
Liberty Global 5089, 6830, 20825, 29562 5.15% 10
Telenet 6848 44.38% 11
Telekom Malaysia 4788 14.30% 12
RCS & RDS 8708 20.11% 15
SoftBank BB 17676 3.07% 13
Chubu Telecommunications 18126 34.20% 14
Belgacom 5432 20.11% 16
Telefonica Czech Republic 5610 23.23% 17
Swisscom 3303 22.12% 20
VOO 12392 59.56% 19
Forthnet 1241 21.11% 23
OTE SA 6799 10.58% 21
Hughes Network Systems 6621 22.81% 22
Telenor Nordic 2119 8.34% 28
CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 7.33% 24
STNet 7522 34.40% 26
Orange Poland 5617, 43447 2.10% 25
Opera Software ASA 39832 0.97% 30
SKTelecom 9644 6.39% 29
XS4ALL 3265 43.83% 27
Get AS, Norway 25400, 41164, 47853, 49455, 51135 23.21% 32
Google Fiber 16591 73.81% 31
StarHub 4657, 55430 8.90% 34
Elion 3249 11.95% 35
BH Telecom d.d. Sarajevo 9146 6.49% 36
Tele2 AB 1257 7.30% 37
its communications Inc.(iTSCOM) 9365 5.73% 40
Internode 4739 2.02% 41
Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.22% 38
AT&T Wireless 20057 0.88% 39
OVH 16276 20.65% 49
Comteco Ltda 27839 9.43% 45
Cisco 109 47.55% 33
EPT Luxembourg 6661 25.19% 44
inexio KGaA 42652 31.45% 50
University of Pennsylvania 55 77.51% 42
M1 Limited 4773, 17547 3.80% 54
MediaCat Div./Community Netowork Center Inc. 17529 6.68% 55
T-Mobile Czech Republic, a.s. 13036 5.35% 58
Janet 786 4.12% 46
University of Minnesota 57, 217 52.91% 43
Deutsche Glasfaser 60294 41.72% 60
University of Buffalo 3685 63.74% 56
Virginia Tech 1312 53.68% 51
NTT Communications 2914 0.88% 64
Rensselaer Polytechnic Institute 91 74.97% 61
CESNET 2852 17.45% 48
Altibox AS 29695 1.82% 70
Xfone 018 47956 9.16% 68
University of South Florida 5661 60.91% 59
UNINETT 224 13.62% 52
ZeelandNet 15542 4.01% 81
University of Vermont 1351 68.68% 72
TUBITAK ULAKBIM / ULAKNET 8517 2.02% 57
FasterNet Internet Service Provider 28580 5.72% 87
GITN Sdn Berhad 38044 6.45% 92
Belnet 2611 8.21% 66
BelWue 553 7.66% 78
Hurricane Electric 6939 15.97% 91
Kasetsart University 9411 10.90% 98
Greek Student Network 197121 9.55% 107
Monash University 56132 30.27% 62
AAISP 20712 29.73% 97
Jiří štrohalm 197307 41.37% 111
Starlink 34602 2.02% 117
University of Iowa 3676 33.66% 74
CJSC Progressive Technologies 35475 6.33% 121
Nettel Telecomunicações Ltda 53135 5.93% 113
Brno University of Technology 197451 60.82% 69
University of California, Los Angeles 52 5.46% 89
Solcon 12414 3.30% 104
LENTEL 44030 7.62% 129
ARNES 2107 27.03% 63
Leibniz Supercomputing Centre 12816 22.02% 71
Choopa, LLC 20473 1.77% 109
SoftLayer Technologies 36351 2.48% 119
University of California, San Diego 7377 8.75% 96
Init7 13030 2.05% 123
Australian Academic and Research Network (AARNet) 7575 4.02% 73
University of Wisconsin - Madison 59 6.23% 95
green.ch AG 1836 6.32% 125
FCCN 1930 25.46% 53
Aristotle University of Thessaloniki 5470 35.27% 114
TekSavvy Solutions 5645 0.15% 133
SWITCH 559 5.36% 65
Louisiana State University 2055 75.91% 75
LITNET 2847 11.34% 83
PT Cyberindo Aditama (CBN Internet) 4787 1.86% 127
GlobalConnect 42525 1.92% 138
RedIRIS 766 5.23% 80
AMRES - Serbian National Research and Education Network 13092 10.20% 103
RENATER 2200 4.64% 82
UniNet 4621 6.79% 134
UFSCar 52888 40.40% 110
DegNet GmbH 20902 25.95% 150
Funet 1741 6.30% 93
DNA 16086 0.31% 131
Bredband2 AB 29518 0.24% 146
Storm Internet 13319 3.89% 151
Television Costa Blanca SL 199952 24.89% 143
Premier Communications 53347 5.24% 142
Makonix 52173 25.46% 365
PowerTech Information Systems AS 5381 5.15% 137
NETIS TELECOM 25592 9.23% 168
NIIF/Hungarnet 1955 12.74% 85
Greek Research & Technology Network 5408 19.23% 149
National Informatics Centre 4758 0.52% 141
UNESP 53166 26.36% 79
Sudanese Research and Education Network 37197 7.31% 166
NetAssist 29632 6.27% 160
Tulane University 10349 8.19% 128
PoP-RS 2716 8.52% 101
Marist College 6124 71.69% 88
AMS-IX 1200 51.61% 193
ASDASD srl / POPWIFI 28929 1.34% 194
ATM S.A. 15694 0.19% 162
Academia Sinica Network 9264 19.66% 139
Alhambra Eidos 15450 0.99% 205
Alog Data Centers do Brasil 16397, 26592 0.92% 206
Association tetaneutral.net 197422 4.51% 210
Atlas Networks 21743 0.53% 211
BDCOM ONLINE LIMITED 7565, 24122 0.16% 212
BIT BV 12859 3.12% 213
Bogons Ltd 3213 0.70% 227
Bulgaria NREN 6802 4.51% 229
CAT TELECOM PCL. 9931 0.17% 231
CESCA 13041 0.40% 234
CZ.NIC 25192 59.38% 241
Claranet 8426 0.59% 247
CloudFlare, Inc. 13335 36.87% 249
Cooperativa Telefónica de Villa Gdor. Galvez Ltda. 11815 0.94% 176
Core-Backbone GmbH 33891 1.80% 254
Custodian Data Centre 50300 0.18% 256
DataChambers 29765 3.84% 262
Defense Research and Engineering Network 668 0.95% 159
DirectVPS 29028 40.63% 269
DreamHost 26347 24.92% 271
Duocast BV 31477 1.47% 272
E-Werk Wels AG - it&tel 21013 0.15% 273
ENTANET International Ltd. 8468 0.14% 276
Exponential-e 25180 0.14% 167
FX Networks 9503 0.45% 288
FidoNet 8282 2.02% 292
FirstDigital Telecom 13415 0.15% 293
FranTech Solutions 53667 7.61% 297
Free University of Bozen-Bolzano 51708 16.77% 298
Fundacao Parque Tecnologico Itaipu - Brasil 263083 67.46% 126
GARR 137 1.32% 106
Georgia Institute of Technology 2637 0.48% 171
Gotalandsnatet AB 12597 0.13% 306
Gustavus Adolphus College 17234 72.35% 105
HEAnet 1213 7.99% 108
Host Virtual, Inc 36236 5.59% 311
IKS GmbH 15725 0.46% 318
IP-Max SA 25091 16.48% 319
IPLAN 16814 0.21% 154
ITsjefen AS 44381 0.62% 321
JARING Communications Sdn Bhd 2042 0.17% 329
Jaguar Network 30781 7.94% 335
Jolokia Networks? 12182 0.47% 337
Karlsruhe Institute of Technology (KIT) 34878 12.09% 136
LGA Telecom Pte Ltd 10024 0.47% 344
Lankacom 5087 0.26% 349
Layer42 Networks 8121 0.79% 350
LeaseWeb BV 16265 0.13% 352
Louisiana Optical Network Initiative 32440 0.62% 354
MAEHDROS 49677 9.74% 355
Mainlab GmbH 21501 1.31% 364
Miconet Sp. z o.o. 35007 0.17% 371
Mythic Beasts Ltd 44684 1.01% 376
NYI 11403 0.18% 383
Neighborhood Networks 62626 4.02% 387
Neo Telecoms 8218 1.67% 153
Neology 37105 7.78% 389
Nepal Research and Education Network 45170 2.79% 390
Netnod 8674 40.44% 392
Netwerkvereniging Coloclue 8283 0.77% 393
Opensvit - PEF Fenix VT 39399 1.01% 404
Oxilion B.V. 48539 4.11% 411
PCextreme B.V. 48635 34.55% 413
PREGINET 9821 2.36% 414
PTK Centertel 43447 66.67% 425
PoP-SP RNP 1916 0.12% 148
RESTENA 2602 4.22% 165
Red Académica de Centros de Investigación y Universidades Nacionales REACCIUN 20312, 27807 6.78% 442
Remex Consulting Pty Limited 55328 69.25% 446
SPAWAR 22 90.32% 90
SURFnet 1103 1.81% 102
Safaricom Ltd 37061 0.21% 454
Saturn-Internet, ISP 31692 6.30% 456
Sauk Valley Community College 13953 71.43% 457
Signet B.V. 28878 0.42% 465
Sikkanet - Gomti Cable and Broadband 45942 0.42% 466
Sistemas Fratec S.A. 262149 11.60% 469
Sparkation Pte Ltd 45634 4.64% 482
Spectrum Networks 11404 4.55% 483
SpeedPartner GmbH 34225 98.31% 484
SteepHost DC-UA 47142 0.66% 486
SupraNet Communications, Inc 4150 0.30% 492
TCA INFORMATICA LTDA 53137 0.16% 494
TOP-IX Consortium 25309 82.99% 496
Tanzania Network Information Center 37045 75.31% 499
ThaiSarn 3836 99.93% 504
The Kansas Research and Education Network 2495 1.37% 505
The Tertiary Education and Research Network of South Africa (TENET) 2018 5.28% 144
Trunk Networks Limited 49375 4.23% 510
U.S. Department of Education 10442 59.84% 124
UNAM 278 0.43% 173
US Dept of Transportation 2576 20.47% 175
Universidad Panamericana 13679 55.93% 122
Universidad de Guadalajara 2549 9.81% 520
Universidade Estadual de Ponta Grossa 53046 86.21% 115
Universidade Federal de Santa Catarina 263300 34.09% 77
University Of Hawaii System 6360 5.47% 100
University of New Hampshire 11745 0.92% 163
VentraIP Group (Australia) Pty Ltd 45638 50.00% 528
Vmax Net Telecomunicacoes do Brasil 28277 1.48% 534
Xente 57309 0.39% 547
Zimcom Internet Solutions, Inc 30059 5.98% 552
domainfactory GmbH 34011 0.67% 555
edpnet 9031 0.79% 164
guifi.net 49835 2.73% 161
iNES Group 12310 0.34% 559
interscholz Internet Services GmbH & Co. KG 33843 21.60% 561
iway AG 8758 2.84% 157
kwaoo.com 24904 3.33% 170
manitu GmbH 34240 1.61% 562
mc.net 6479 0.23% 563
ninux.org 197835 52.19% 566
prgmr.com 47066 5.31% 567
snowflake productions gmbh 198249 87.91% 569


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.