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, 12th November 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 27.74% 1
ATT 6389, 7018, 7132 28.69% 2
KDDI 2516 14.86% 3
Verizon Wireless 6167, 22394 59.40% 4
Time Warner Cable 7843, 10796, 11351, 11426, 11427, 12271, 20001 11.55% 5
Deutsche Telekom AG 3320 24.82% 6
Free 12322 34.06% 7
Telenet 6848 39.69% 9
Liberty Global 5089, 6830, 20825, 29562 3.73% 11
T-Mobile USA 21928 43.14% 8
Telefonica del Peru 6147 11.55% 10
RCS & RDS 8708 21.39% 12
Telekom Malaysia 4788 8.44% 13
Swisscom 3303 26.26% 17
Belgacom 5432 14.94% 14
Chubu Telecommunications 18126 28.54% 15
SoftBank BB 17676 2.42% 16
Telefonica Czech Republic 5610 21.96% 18
Hughes Network Systems 6621 24.65% 19
VOO 12392 38.69% 21
OTE SA 6799 9.19% 20
Forthnet 1241 16.38% 22
Opera Software ASA 39832 12.31% 23
XS4ALL 3265 39.04% 24
Telenor Nordic 2119 7.49% 26
Orange Poland 5617, 43447 1.30% 25
Get AS, Norway 25400, 41164, 47853, 49455, 51135 19.50% 28
Google Fiber 16591 75.31% 27
CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 2.73% 29
BH Telecom d.d. Sarajevo 9146 8.52% 31
Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.27% 32
StarHub 4657, 55430 5.36% 34
Elion 3249 7.60% 40
Internode 4739 3.24% 38
SKTelecom 9644 1.33% 35
OVH 16276 17.16% 39
Tele2 AB 1257 4.21% 41
Janet 786 4.69% 33
its communications Inc.(iTSCOM) 9365 5.18% 42
EPT Luxembourg 6661 27.70% 44
Cisco 109 42.34% 30
University of Pennsylvania 55 76.79% 36
CESNET 2852 15.58% 46
M1 Limited 4773, 17547 2.56% 50
University of Minnesota 57, 217 56.13% 37
Monash University 56132 32.43% 56
Indiana University 87 21.61% 43
University of Buffalo 3685 67.20% 49
MediaCat Div./Community Netowork Center Inc. 17529 6.59% 58
Virginia Tech 1312 66.93% 45
inexio KGaA 42652 16.53% 61
ARNES 2107 31.62% 57
Belnet 2611 9.64% 48
UNINETT 224 32.99% 54
NTT Communications 2914 4.99% 65
T-Mobile Czech Republic, a.s. 13036 2.52% 68
University of South Florida 5661 66.31% 53
Kasetsart University 9411 30.13% 62
Louisiana State University 2055 79.00% 51
BelWue 553 5.84% 66
Greek Student Network 197121 5.54% 79
University of Vermont 1351 72.13% 67
LITNET 2847 19.04% 74
Rensselaer Polytechnic Institute 91 49.38% 64
Altibox AS 29695 1.81% 80
Leibniz Supercomputing Centre 12816 31.05% 59
NIIF/Hungarnet 1955 15.91% 69
FCCN 1930 25.69% 52
Australian Academic and Research Network (AARNet) 7575 1.81% 93
Xfone 018 47956 6.60% 78
Centurylink 209 0.36% 82
TUBITAK ULAKBIM / ULAKNET 8517 2.34% 63
Marist College 6124 65.24% 88
Hurricane Electric 6939 11.38% 77
SWITCH 559 6.90% 55
FasterNet Internet Service Provider 28580 4.10% 90
Gustavus Adolphus College 17234 84.96% 95
RedIRIS 766 9.24% 47
UniNet 4621 9.70% 89
AAISP 20712 26.16% 94
University of California, Los Angeles 52 8.67% 83
University of Iowa 3676 42.61% 71
Nettel Telecomunicações Ltda 53135 5.38% 101
GITN Sdn Berhad 38044 2.23% 106
green.ch AG 1836 6.79% 109
SuperCSI 2506 2.14% 104
Starlink 34602 1.84% 108
Jiří štrohalm 197307 55.28% 113
British Sky Broadcasting 5607 1.90% 114
University of California, San Diego 7377 7.51% 76
Solcon 12414 8.00% 103
CJSC Progressive Technologies 35475 7.63% 110
University Of Hawaii System 6360 23.53% 60
University of Wisconsin - Madison 59 7.10% 84
LENTEL 44030 26.02% 122
Funet 1741 18.56% 87
PT Cyberindo Aditama (CBN Internet) 4787 1.49% 111
Init7 13030 4.53% 120
Greek Research & Technology Network 5408 26.12% 100
AMRES - Serbian National Research and Education Network 13092 30.72% 81
GlobalConnect 42525 1.36% 129
Academia Sinica Network 9264 9.58% 131
TekSavvy Solutions 5645 0.18% 121
JARING Communications Sdn Bhd 2042 0.36% 127
DegNet GmbH 20902 39.54% 135
GARR 137 1.44% 85
SURFnet 1103 1.26% 92
UNESP 53166 26.12% 73
UFSCar 52888 36.64% 98
China Telecom 4134, 4809 0.47% 128
PoP-RS 2716 9.65% 91
PowerTech Information Systems AS 5381 9.84% 124
Karlsruhe Institute of Technology (KIT) 34878 36.27% 105
RENATER 2200 4.45% 70
Louisiana Optical Network Initiative 32440 4.96% 153
Storm Internet 13319 4.33% 132
LeaseWeb BV 16265 0.83% 133
PT Telekomunikasi Indonesia 7713 16.24% 150
edpnet 9031 2.02% 140
Choopa, LLC 20473 0.44% 137
Television Costa Blanca SL 199952 29.42% 148
SoftLayer Technologies 36351 0.67% 138
Bangalore Broadband Network Pvt Ltd 55947 1.03% 155
HEAnet 1213 3.20% 96
guifi.net 49835 28.09% 143
kwaoo.com 24904 17.52% 141
Bredband2 AB 29518 0.17% 151
CICA/Junta de Andalucía 198096 26.05% 99
Bulgaria NREN 6802 29.46% 149
Tulane University 10349 7.81% 117
RESTENA 2602 5.92% 154
NETIS TELECOM 25592 8.00% 351
Opensvit - PEF Fenix VT 39399 2.07% 377
Dhiraagu 7642 0.46% 248
Honesty Net Solutions (I) Pvt Ltd 38457 2.43% 290
Sunrise Communications AG 5426, 6730, 9214 0.15% 458
Sri Lanka Telecom PLC 9329 0.26% 172
ADDIX Internet Services 25415 2.46% 180
AIMES Grid Services CIC 48954 0.50% 181
AMS-IX 1200 48.00% 182
ASDASD srl / POPWIFI 28929 0.80% 183
ATM S.A. 15694 0.26% 142
Airsat 28026 0.13% 190
Alhambra Eidos 15450 34.21% 192
Alog Data Centers do Brasil 16397, 26592 1.27% 193
Association tetaneutral.net 197422 55.93% 197
Atlas Networks 21743 1.53% 198
BIT BV 12859 2.40% 200
BSO Network Solutions 31216 1.29% 201
Bogons Ltd 3213 0.41% 213
CESCA 13041 0.57% 219
CZ.NIC 25192 59.85% 226
Claranet 8426 0.47% 161
CloudFlare, Inc. 13335 17.55% 231
Core-Backbone GmbH 33891 1.20% 236
Critical Colocation 52342 20.32% 237
Custodian Data Centre 50300 0.23% 238
Cybera Inc 15296 1.96% 239
DMZGlobal 17649 2.02% 242
DTS 24183 3.94% 243
DataChambers 29765 2.16% 244
Defense Research and Engineering Network 668 8.13% 102
Digital Pacific Pty Ltd 55803 0.89% 250
DirectVPS 29028 57.03% 251
DreamHost 26347 18.89% 253
Duocast BV 31477 0.92% 254
E-Werk Wels AG - it&tel 21013 0.22% 255
EGATE Networks Inc. 13657 0.50% 257
ENTANET International Ltd. 8468 0.23% 258
Ehiweb.it 43989 1.22% 260
Etop sp. z o.o. / DataHouse.Pl 20853 0.20% 266
Exa Networks Limited 30740 0.94% 267
Excellent Hosting Sweden AB 50986 33.78% 268
Exponential-e 25180 4.27% 123
FX Networks 9503 0.41% 270
FidoNet 8282 11.47% 273
FirstDigital Telecom 13415 0.19% 274
FranTech Solutions 53667 1.47% 278
Free University of Bozen-Bolzano 51708 54.89% 145
Fundacao Parque Tecnologico Itaipu - Brasil 263083 83.15% 119
Georgia Institute of Technology 2637 0.93% 160
Georgian College of AA&T 19764 0.24% 283
Go6 Institute 198644 74.70% 285
Gotalandsnatet AB 12597 0.11% 286
Hivane Networks 34019 45.70% 289
Host Virtual, Inc 36236 6.54% 291
Host.MD 28990 4.12% 292
Hostemo Technology Sdn Bhd 55799 1.16% 294
ICT Valle Umbra 15605 0.73% 296
IKS GmbH 15725 4.00% 298
IP-Max SA 25091 24.18% 299
ITsjefen AS 44381 1.61% 301
JSC Zap-Sib TransTeleCom 21127 0.16% 309
JT 8681 0.53% 311
Jaguar Network 30781 7.23% 312
Jolokia Networks? 12182 0.43% 314
Keycom 25178 0.12% 317
LGA Telecom Pte Ltd 10024 0.16% 320
Layer42 Networks 8121 8.45% 326
MAEHDROS 49677 48.81% 329
MERLIN 16796 0.71% 333
MaineREN - University of Maine System 557 0.57% 336
Mainlab GmbH 21501 0.17% 337
Maxiweb Internet Provider 28140 0.19% 340
Miconet Sp. z o.o. 35007 1.49% 343
MiroNet GmbH 49983 11.38% 345
Mythic Beasts Ltd 44684 10.99% 348
NAITWAYS 57119 0.26% 349
NETHINKS GmbH 8319 0.44% 350
NYI 11403 3.65% 356
National Informatics Centre 4758 0.46% 163
Neo Telecoms 8218 12.59% 134
Neology 37105 14.74% 361
NetAssist 29632 12.43% 363
NetNam Corporation 24173 0.32% 364
Netnod 8674 55.33% 365
Netwerkvereniging Coloclue 8283 0.23% 366
NineWire Pty LTd 132020 99.93% 368
Nordic LAN&WAN Communication Oy 29240 0.14% 371
Novso 25358 49.87% 372
Oquei Provedor 262761 0.19% 378
Oxilion B.V. 48539 0.27% 383
PCextreme B.V. 48635 3.87% 385
PREGINET 9821 33.81% 386
PT.MEDIA SARANA DATA(GMEDIA) 55666 0.16% 395
PTK Centertel 43447 50.00% 396
PoP-SP RNP 1916 0.19% 130
Ponto de Presença da RNP na Bahia 53164 34.63% 136
RAU - UdelaR 1797 51.06% 409
Red Académica de Centros de Investigación y Universidades Nacionales REACCIUN 20312, 27807 6.24% 412
Redstone 5552 3.31% 414
Remex Consulting Pty Limited 55328 73.72% 416
SARENET 3262 11.84% 420
SPAWAR 22 45.43% 97
Safaricom Ltd 37061 0.51% 424
Saturn-Internet, ISP 31692 1.89% 426
Sauk Valley Community College 13953 52.20% 427
Shabdiz Telecom Network 50530 0.24% 432
Signet B.V. 28878 0.95% 164
Sistemas Fratec S.A. 262149 4.94% 438
Spectrum Networks 11404 4.70% 451
SpeedPartner GmbH 34225 97.60% 452
SteepHost DC-UA 47142 3.76% 454
Sudanese Research and Education Network 37197 1.65% 457
SupraNet Communications, Inc 4150 0.18% 460
TB Telecom Sp. z o.o. 51155 0.53% 461
TOP-IX Consortium 25309 84.31% 463
Tanzania Network Information Center 37045 22.73% 466
TeliaSonera International Carrier 1299 0.97% 144
ThaiSarn 3836 75.14% 471
The Kansas Research and Education Network 2495 1.43% 472
The Tertiary Education and Research Network of South Africa (TENET) 2018 3.78% 126
Trunk Networks Limited 49375 35.67% 477
U.S. Department of Education 10442 78.31% 115
UNAM 278 2.64% 482
US Dept of Transportation 2576 12.20% 484
Universidad Panamericana 13679 63.89% 112
Universidade Estadual de Ponta Grossa 53046 58.64% 107
Universidade Federal de Santa Catarina 263300 26.78% 72
University of New Hampshire 11745 34.40% 157
Utility Line Italia srl 9026 51.05% 492
Vip mobile d.o.o. 44143 0.14% 499
Vmax Net Telecomunicacoes do Brasil 28277 0.93% 502
XO Communications 2828 0.14% 156
Xente 57309 50.37% 513
ZeelandNet 15542 33.48% 518
Zimcom Internet Solutions, Inc 30059 4.20% 519
domainfactory GmbH 34011 2.64% 522
filoo GmbH 47215 3.17% 524
iNES Group 12310 0.71% 526
internet4YOU GmbH & Co. KG 29014 0.71% 527
interscholz Internet Services GmbH & Co. KG 33843 59.68% 528
iway AG 8758 2.07% 529
manitu GmbH 34240 6.68% 530
mc.net 6479 14.27% 531
next layer Telekommunikationsdienstleistungs- und BeratungsGmbH 1764 1.52% 533
ninux.org 197835 70.56% 534
prgmr.com 47066 16.18% 535


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 (Facebook provided data to the end of 2013). 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.

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.

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.

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.