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, 10th December 2014 (notes)

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

Participating Network ASN(s) IPv6 deployment
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 30.29% 1
ATT 6389, 7018, 7132 27.08% 2
KDDI 2516 14.69% 3
Deutsche Telekom AG 3320 31.46% 6
Time Warner Cable 7843, 10796, 11351, 11426, 11427, 12271, 20001 12.35% 5
Verizon Wireless 6167, 22394 63.19% 4
Free 12322 33.27% 7
Telenet 6848 51.48% 8
Liberty Global 5089, 6830, 20825, 29562 6.34% 9
Telefonica del Peru 6147 12.29% 11
RCS & RDS 8708 23.21% 12
T-Mobile USA 21928 46.06% 10
Belgacom 5432 18.76% 14
Swisscom 3303 30.07% 16
Telekom Malaysia 4788 8.31% 13
Telefonica Czech Republic 5610 26.08% 17
VOO 12392 58.52% 19
Chubu Telecommunications 18126 31.85% 15
SoftBank BB 17676 2.31% 18
OTE SA 6799 11.67% 20
Hughes Network Systems 6621 21.30% 21
Forthnet 1241 23.08% 22
CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 6.65% 23
XS4ALL 3265 46.04% 24
Opera Software ASA 39832 8.87% 25
Orange Poland 5617, 43447 1.52% 26
Telenor Nordic 2119 8.97% 27
Get AS, Norway 25400, 41164, 47853, 49455, 51135 23.96% 28
Google Fiber 16591 74.21% 29
StarHub 4657, 55430 6.21% 33
Elion 3249 9.24% 34
SKTelecom 9644 2.74% 31
BH Telecom d.d. Sarajevo 9146 9.55% 32
Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.31% 36
Tele2 AB 1257 5.91% 37
Internode 4739 3.02% 40
Cisco 109 46.12% 30
its communications Inc.(iTSCOM) 9365 4.86% 42
EPT Luxembourg 6661 24.46% 44
University of Pennsylvania 55 76.81% 39
CESNET 2852 17.61% 41
inexio KGaA 42652 32.71% 47
M1 Limited 4773, 17547 3.92% 48
Indiana University 87 15.22% 43
Janet 786 4.80% 35
University of Minnesota 57, 217 53.37% 38
OVH 16276 22.60% 45
Monash University 56132 29.83% 60
Virginia Tech 1312 60.86% 46
MediaCat Div./Community Netowork Center Inc. 17529 6.32% 58
T-Mobile Czech Republic, a.s. 13036 3.80% 61
Belnet 2611 10.79% 49
ARNES 2107 36.34% 53
UNINETT 224 30.57% 55
BelWue 553 8.43% 62
NTT Communications 2914 4.65% 66
LITNET 2847 19.06% 65
Greek Student Network 197121 4.33% 68
Kasetsart University 9411 7.15% 71
Leibniz Supercomputing Centre 12816 37.62% 56
University of Buffalo 3685 64.23% 52
Altibox AS 29695 1.95% 81
Xfone 018 47956 5.63% 75
FCCN 1930 22.86% 51
SWITCH 559 6.17% 57
Marist College 6124 67.64% 78
NIIF/Hungarnet 1955 14.64% 70
Australian Academic and Research Network (AARNet) 7575 3.16% 93
Nettel Telecomunicações Ltda 53135 6.42% 87
TUBITAK ULAKBIM / ULAKNET 8517 2.36% 59
RedIRIS 766 8.22% 50
Centurylink 209 0.28% 83
University of California, Los Angeles 52 8.91% 82
AAISP 20712 27.96% 88
Hurricane Electric 6939 16.76% 86
GITN Sdn Berhad 38044 3.99% 98
Gustavus Adolphus College 17234 80.96% 89
Aristotle University of Thessaloniki 5470 28.87% 74
SuperCSI 2506 3.11% 94
FasterNet Internet Service Provider 28580 3.85% 91
UniNet 4621 10.02% 97
University Of Hawaii System 6360 20.98% 63
Rensselaer Polytechnic Institute 91 40.16% 76
green.ch AG 1836 9.55% 107
Starlink 34602 1.99% 102
University of Iowa 3676 32.86% 69
Jiří štrohalm 197307 49.98% 109
ZeelandNet 15542 21.18% 111
CJSC Progressive Technologies 35475 6.21% 112
University of Wisconsin - Madison 59 5.53% 84
Solcon 12414 15.46% 105
British Sky Broadcasting 5607 2.38% 118
LENTEL 44030 24.63% 115
Funet 1741 18.82% 85
Init7 13030 7.64% 114
Louisiana State University 2055 74.62% 54
AMRES - Serbian National Research and Education Network 13092 25.53% 80
China Telecom 4134, 4809 0.20% 133
PT Cyberindo Aditama (CBN Internet) 4787 1.59% 117
GlobalConnect 42525 1.67% 127
GARR 137 1.54% 92
Karlsruhe Institute of Technology (KIT) 34878 40.65% 99
Academia Sinica Network 9264 12.19% 136
JARING Communications Sdn Bhd 2042 0.27% 135
Greek Research & Technology Network 5408 32.85% 100
Storm Internet 13319 5.15% 134
NETIS TELECOM 25592 11.58% 150
LeaseWeb BV 16265 3.34% 132
PT Telekomunikasi Indonesia 7713 13.50% 142
DegNet GmbH 20902 39.77% 138
UNESP 53166 22.70% 72
RENATER 2200 5.82% 67
Choopa, LLC 20473 0.96% 137
kwaoo.com 24904 18.91% 139
PoP-RS 2716 13.77% 96
SoftLayer Technologies 36351 1.73% 124
HEAnet 1213 3.73% 104
guifi.net 49835 23.89% 144
edpnet 9031 1.55% 143
Television Costa Blanca SL 199952 27.69% 149
University of South Florida 5661 53.94% 64
Bredband2 AB 29518 0.29% 152
PowerTech Information Systems AS 5381 9.71% 129
UFSCar 52888 51.03% 101
Universidade Federal do Rio Grande do Sul 19200 36.03% 151
SURFnet 1103 1.64% 90
RESTENA 2602 5.96% 158
CICA/Junta de Andalucía 198096 20.79% 103
Tulane University 10349 7.15% 121
Sudanese Research and Education Network 37197 4.46% 465
NetAssist 29632 35.28% 162
Opensvit - PEF Fenix VT 39399 2.43% 165
Dhiraagu 7642 0.26% 252
University of Vermont 1351 62.44% 79
Sunrise Communications AG 5426, 6730, 9214 0.66% 171
AIMES Grid Services CIC 48954 51.23% 183
AMS-IX 1200 52.23% 184
ASDASD srl / POPWIFI 28929 1.50% 185
ATM S.A. 15694 0.39% 155
Academic Scientific Research Computer Network of Armenia (ASNET-AM) 47623 0.22% 188
Airsat 28026 0.24% 193
Al-Quds University 41346 0.12% 194
Alhambra Eidos 15450 25.64% 195
Alog Data Centers do Brasil 16397, 26592 1.33% 196
Association tetaneutral.net 197422 36.45% 200
Atlas Networks 21743 0.55% 201
BDCOM ONLINE LIMITED 7565, 24122 0.19% 202
BIT BV 12859 4.44% 203
BSO Network Solutions 31216 0.64% 204
Bangalore Broadband Network Pvt Ltd 55947 1.28% 208
Blue Networks Technologies 50620 8.26% 214
Bogons Ltd 3213 0.35% 217
Bulgaria NREN 6802 29.78% 164
CEDIA 27841 50.44% 222
CESCA 13041 0.34% 223
CZ.NIC 25192 76.00% 230
Claranet 8426 1.92% 159
CloudFlare, Inc. 13335 21.57% 235
Colt 8220 0.42% 119
Cooperativa Telefónica de Villa Gdor. Galvez Ltda. 11815 0.55% 239
Core-Backbone GmbH 33891 1.11% 240
Custodian Data Centre 50300 0.72% 242
Cybera Inc 15296 1.65% 243
DMZGlobal 17649 2.06% 246
DTS 24183 3.09% 247
DataChambers 29765 1.41% 248
Defense Research and Engineering Network 668 5.32% 106
Digital Pacific Pty Ltd 55803 13.04% 254
DirectVPS 29028 49.89% 255
DreamHost 26347 14.28% 257
Duocast BV 31477 1.13% 258
EGATE Networks Inc. 13657 5.35% 261
ENTANET International Ltd. 8468 0.45% 262
Ehiweb.it 43989 1.85% 264
Electronics Engineering Polytechnic Institute of Surabaya 46052 0.87% 265
Etop sp. z o.o. / DataHouse.Pl 20853 0.13% 270
Exa Networks Limited 30740 33.48% 271
Excellent Hosting Sweden AB 50986 40.86% 272
Exponential-e 25180 1.26% 160
FX Networks 9503 0.48% 274
Faculdade de Ciências Aplicadas da Unicamp 53187 0.19% 275
FidoNet 8282 13.65% 278
FirstDigital Telecom 13415 0.16% 279
Fluidata 39545 25.01% 282
FranTech Solutions 53667 10.40% 283
Free University of Bozen-Bolzano 51708 39.79% 163
Freethought Internet Limited 41000 4.35% 284
Fundacao Parque Tecnologico Itaipu - Brasil 263083 75.08% 125
Georgia Institute of Technology 2637 0.78% 168
Georgian College of AA&T 19764 3.92% 288
Go6 Institute 198644 76.39% 290
Gotalandsnatet AB 12597 0.87% 291
Greenhost 47172 0.45% 292
Hivane Networks 34019 50.00% 294
Host Virtual, Inc 36236 14.02% 296
Host.MD 28990 33.03% 297
Hostemo Technology Sdn Bhd 55799 3.35% 299
ICT Valle Umbra 15605 0.26% 301
IKS GmbH 15725 5.49% 303
IP-Max SA 25091 43.04% 304
ITsjefen AS 44381 2.18% 306
JT 8681 1.68% 318
Jaguar Network 30781 8.80% 319
Jolokia Networks? 12182 23.00% 321
Keycom 25178 0.31% 324
LGA Telecom Pte Ltd 10024 0.30% 327
Layer42 Networks 8121 0.67% 333
Louisiana Optical Network Initiative 32440 2.71% 156
MAEHDROS 49677 37.85% 336
MDlink GmbH 43341 50.01% 339
MERLIN 16796 0.34% 340
MaineREN - University of Maine System 557 0.41% 343
Makonix 52173 10.41% 345
Masterradius Telecom 262465 0.47% 347
Maxiweb Internet Provider 28140 1.15% 348
Miconet Sp. z o.o. 35007 0.11% 351
MiroNet GmbH 49983 0.43% 353
Mythic Beasts Ltd 44684 24.73% 356
NAITWAYS 57119 0.49% 357
NETHINKS GmbH 8319 1.66% 358
NIC México 22894, 28498, 28499, 28504 27.68% 360
NYI 11403 4.62% 363
National Informatics Centre 4758 0.36% 166
NedZone Internet BV 25459 1.51% 366
Neo Telecoms 8218 12.62% 126
Neology 37105 9.15% 368
NetNam Corporation 24173 0.63% 370
Netnod 8674 66.62% 371
Netwerkvereniging Coloclue 8283 2.65% 372
NineWire Pty LTd 132020 99.97% 374
Oquei Provedor 262761 0.39% 384
Oxilion B.V. 48539 0.57% 389
PCextreme B.V. 48635 21.03% 391
PREGINET 9821 25.86% 392
PT. Wifian Solution 58485 0.44% 400
PTK Centertel 43447 66.67% 402
PoP-SP RNP 1916 0.16% 140
Ponto de Presença da RNP na Bahia 53164 28.01% 145
Prolocation 41887 0.44% 407
Quonix Networks 17185 0.96% 414
RAU - UdelaR 1797 35.53% 415
Red Académica de Centros de Investigación y Universidades Nacionales REACCIUN 20312, 27807 6.38% 418
Redstone 5552 0.49% 420
Remex Consulting Pty Limited 55328 65.90% 422
SARENET 3262 10.67% 426
SIDN 1140 49.27% 427
SPAWAR 22 63.36% 95
Safaricom Ltd 37061 0.71% 430
Saturn-Internet, ISP 31692 3.80% 432
Sauk Valley Community College 13953 71.27% 433
Signet B.V. 28878 0.51% 441
Sistemas Fratec S.A. 262149 9.64% 445
Solido Networks ApS 12617 4.46% 450
Source XS 56510 4.44% 454
Sparkation Pte Ltd 45634 40.22% 458
Spectrum Networks 11404 4.52% 459
SpeedPartner GmbH 34225 99.51% 460
SteepHost DC-UA 47142 0.89% 462
SuperInternet Access Pte Ltd 4844 0.41% 466
SupraNet Communications, Inc 4150 0.16% 467
TCA INFORMATICA LTDA 53137 0.55% 469
TOP-IX Consortium 25309 84.91% 471
TeliaSonera International Carrier 1299 2.09% 153
ThaiSarn 3836 99.73% 479
The Kansas Research and Education Network 2495 0.92% 480
The Tertiary Education and Research Network of South Africa (TENET) 2018 3.18% 130
Trunk Networks Limited 49375 26.77% 485
U.S. Department of Education 10442 79.16% 116
UNAM 278 1.92% 490
US Dept of Transportation 2576 10.62% 492
Universidad Panamericana 13679 69.77% 131
Universidad de Guadalajara 2549 26.09% 73
Universidade Estadual de Ponta Grossa 53046 66.48% 113
Universidade Federal de Santa Catarina 263300 27.21% 77
University Of Lampung 56237 0.49% 497
University of California, San Diego 7377 4.55% 108
University of New Hampshire 11745 25.71% 157
Utility Line Italia srl 9026 40.23% 500
VTC - INTECOM 38248 5.58% 502
VentraIP Group (Australia) Pty Ltd 45638 2.15% 504
Vescnet 262792 0.30% 505
Vip mobile d.o.o. 44143 0.10% 507
Vmax Net Telecomunicacoes do Brasil 28277 1.34% 510
Xente 57309 50.00% 522
Zimcom Internet Solutions, Inc 30059 5.67% 527
Zvezda Telecom 21367 33.35% 528
domainfactory GmbH 34011 0.75% 530
filoo GmbH 47215 8.74% 532
iNES Group 12310 0.52% 534
internet4YOU GmbH & Co. KG 29014 3.97% 535
interscholz Internet Services GmbH & Co. KG 33843 66.02% 536
iway AG 8758 5.13% 537
manitu GmbH 34240 26.32% 538
mc.net 6479 12.73% 539
mur.at - Verein zur Frderung von Netzkwerkkunst 39837 42.54% 540
next layer Telekommunikationsdienstleistungs- und BeratungsGmbH 1764 0.72% 541
prgmr.com 47066 7.90% 543


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.