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, 11th March 2015 (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 24.78% 1
ATT 6389, 7018, 7132 39.63% 2
KDDI 2516 19.33% 3
Verizon Wireless 6167, 22394 61.87% 4
Deutsche Telekom AG 3320 20.12% 5
Time Warner Cable 7843, 10796, 11351, 11426, 11427, 12271, 20001 12.01% 6
Free 12322 20.61% 8
T-Mobile USA 21928 43.02% 7
Liberty Global 5089, 6830, 20825, 29562 4.52% 10
Telenet 6848 52.62% 11
Telefonica del Peru 6147 15.78% 9
RCS & RDS 8708 14.15% 13
Telekom Malaysia 4788 10.86% 12
Chubu Telecommunications 18126 36.83% 14
SoftBank BB 17676 2.15% 15
Belgacom 5432 17.96% 16
OTE SA 6799 12.44% 17
Telefonica Czech Republic 5610 28.42% 18
Swisscom 3303 20.52% 20
VOO 12392 57.78% 19
Hughes Network Systems 6621 23.84% 22
Forthnet 1241 17.28% 21
CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 6.97% 23
STNet 7522 37.00% 25
Telenor Nordic 2119 8.32% 29
Orange Poland 5617, 43447 2.34% 26
XS4ALL 3265 55.23% 24
SKTelecom 9644 7.20% 27
Get AS, Norway 25400, 41164, 47853, 49455, 51135 21.25% 31
Google Fiber 16591 65.84% 30
StarHub 4657, 55430 8.24% 32
Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.23% 33
Elion 3249 14.78% 36
BH Telecom d.d. Sarajevo 9146 7.60% 37
its communications Inc.(iTSCOM) 9365 7.39% 40
Tele2 AB 1257 7.26% 38
AT&T Wireless 20057 0.93% 39
Internode 4739 1.97% 41
Janet 786 4.18% 35
EPT Luxembourg 6661 18.54% 42
inexio KGaA 42652 23.81% 46
OVH 16276 13.19% 44
Cisco 109 39.87% 34
CESNET 2852 19.93% 43
M1 Limited 4773, 17547 2.58% 48
University of Minnesota 57, 217 44.03% 45
Monash University 56132 27.69% 57
MediaCat Div./Community Netowork Center Inc. 17529 7.87% 54
University of Buffalo 3685 60.03% 62
T-Mobile Czech Republic, a.s. 13036 4.53% 58
Deutsche Glasfaser 60294 41.94% 61
Greek Student Network 197121 12.15% 65
NTT Communications 2914 0.53% 66
Xfone 018 47956 6.42% 70
UNINETT 224 13.36% 47
Belnet 2611 12.01% 50
Altibox AS 29695 1.28% 77
Louisiana State University 2055 74.27% 53
ZeelandNet 15542 4.20% 79
Brno University of Technology 197451 68.49% 64
University of Pennsylvania 55 54.07% 49
BelWue 553 9.66% 71
University of South Florida 5661 40.40% 59
ARNES 2107 28.31% 60
Kasetsart University 9411 0.42% 91
FasterNet Internet Service Provider 28580 7.35% 86
LITNET 2847 15.83% 84
Rensselaer Polytechnic Institute 91 52.94% 68
Marist College 6124 68.62% 104
FCCN 1930 16.26% 52
Australian Academic and Research Network (AARNet) 7575 3.28% 75
Leibniz Supercomputing Centre 12816 19.84% 69
AAISP 20712 25.16% 93
University of California, Los Angeles 52 5.67% 85
NIIF/Hungarnet 1955 11.83% 78
University of Vermont 1351 56.84% 72
Aristotle University of Thessaloniki 5470 41.91% 82
GITN Sdn Berhad 38044 6.05% 102
University of Iowa 3676 18.48% 81
University of California, San Diego 7377 8.70% 83
SWITCH 559 7.70% 55
TUBITAK ULAKBIM / ULAKNET 8517 1.27% 63
Virginia Tech 1312 52.05% 67
Hurricane Electric 6939 12.99% 101
UniNet 4621 12.10% 162
Jiří štrohalm 197307 42.79% 108
Solcon 12414 3.45% 98
Starlink 34602 2.96% 110
Gustavus Adolphus College 17234 47.16% 109
CJSC Progressive Technologies 35475 6.11% 111
Nettel Telecomunicações Ltda 53135 5.56% 113
RedIRIS 766 5.48% 56
University of Wisconsin - Madison 59 3.77% 90
green.ch AG 1836 7.77% 116
Init7 13030 2.24% 118
LENTEL 44030 6.99% 132
Choopa, LLC 20473 0.91% 135
GlobalConnect 42525 1.92% 136
SoftLayer Technologies 36351 0.75% 127
Funet 1741 5.51% 87
Storm Internet 13319 3.62% 141
Academia Sinica Network 9264 16.70% 133
JARING Communications Sdn Bhd 2042 0.64% 138
UFSCar 52888 41.08% 106
GARR 137 1.17% 94
Television Costa Blanca SL 199952 28.69% 148
University Of Hawaii System 6360 6.12% 100
kwaoo.com 24904 4.75% 156
AMRES - Serbian National Research and Education Network 13092 7.01% 88
Bredband2 AB 29518 0.31% 140
PT Cyberindo Aditama (CBN Internet) 4787 2.97% 119
PoP-RS 2716 11.12% 95
PowerTech Information Systems AS 5381 4.72% 126
RENATER 2200 4.08% 74
DegNet GmbH 20902 27.61% 152
Makonix 52173 31.07% 155
UNESP 53166 27.30% 73
Tulane University 10349 5.46% 124
Karlsruhe Institute of Technology (KIT) 34878 18.16% 115
next layer Telekommunikationsdienstleistungs- und BeratungsGmbH 1764 0.74% 560
Greek Research & Technology Network 5408 16.41% 105
Louisiana Optical Network Initiative 32440 4.42% 164
Premier Communications 53347 4.13% 158
RESTENA 2602 11.11% 157
NetAssist 29632 9.36% 160
Universidade Federal do Rio Grande do Sul 19200 12.77% 172
guifi.net 49835 3.38% 161
SURFnet 1103 1.41% 96
ADDIX Internet Services 25415 0.10% 193
AMS-IX 1200 43.66% 196
ASDASD srl / POPWIFI 28929 0.85% 197
ATM S.A. 15694 0.24% 168
Alhambra Eidos 15450 2.03% 206
Alog Data Centers do Brasil 16397, 26592 2.84% 207
Association tetaneutral.net 197422 7.89% 211
Atlas Networks 21743 0.25% 212
BDCOM ONLINE LIMITED 7565, 24122 0.16% 213
BIT BV 12859 2.94% 214
Bulgaria NREN 6802 4.38% 171
CESCA 13041 0.27% 176
CZ.NIC 25192 60.46% 240
Claranet 8426 0.48% 169
CloudFlare, Inc. 13335 44.44% 247
Cooperativa Telefónica de Villa Gdor. Galvez Ltda. 11815 0.64% 251
Custodian Data Centre 50300 0.30% 255
DTS 24183 0.51% 260
DataChambers 29765 6.10% 261
Digital Pacific Pty Ltd 55803 0.46% 266
DirectVPS 29028 49.38% 267
DreamHost 26347 24.29% 269
Duocast BV 31477 1.43% 270
EGATE Networks Inc. 13657 0.13% 273
ENTANET International Ltd. 8468 0.14% 274
Etop sp. z o.o. / DataHouse.Pl 20853 0.22% 282
FX Networks 9503 0.70% 286
FidoNet 8282 2.37% 290
FranTech Solutions 53667 3.85% 295
Free University of Bozen-Bolzano 51708 25.85% 159
Fundacao Parque Tecnologico Itaipu - Brasil 263083 78.68% 134
Go6 Institute 198644 100.00% 302
Gotalandsnatet AB 12597 0.21% 303
HEAnet 1213 3.31% 97
Host Virtual, Inc 36236 7.53% 308
IKS GmbH 15725 1.12% 315
IP-Max SA 25091 18.04% 316
ITsjefen AS 44381 0.61% 318
JT 8681 0.12% 330
Jaguar Network 30781 11.32% 331
LGA Telecom Pte Ltd 10024 0.47% 340
Lankacom 5087 0.37% 345
Layer42 Networks 8121 0.25% 346
MAEHDROS 49677 8.15% 350
Maxiweb Internet Provider 28140 0.15% 362
Miconet Sp. z o.o. 35007 0.42% 365
MiroNet GmbH 49983 50.62% 367
Mythic Beasts Ltd 44684 3.24% 370
NETIS TELECOM 25592 2.66% 373
NYI 11403 0.23% 378
National Informatics Centre 4758 0.54% 150
Neo Telecoms 8218 1.81% 145
Neology 37105 7.53% 384
Nepal Research and Education Network 45170 7.84% 385
NetNam Corporation 24173 0.95% 386
Netnod 8674 56.68% 387
Nordic LAN&WAN Communication Oy 29240 1.45% 393
Opensvit - PEF Fenix VT 39399 3.75% 173
Oxilion B.V. 48539 0.46% 405
PCextreme B.V. 48635 4.48% 407
PREGINET 9821 0.72% 408
PTK Centertel 43447 100.00% 419
Ponto de Presença da RNP na Bahia 53164 4.70% 153
RAU - UdelaR 1797 1.24% 432
Red Académica de Centros de Investigación y Universidades Nacionales REACCIUN 20312, 27807 1.79% 435
Remex Consulting Pty Limited 55328 30.28% 439
SARENET 3262 0.36% 443
SPAWAR 22 93.10% 92
Safaricom Ltd 37061 0.21% 447
Saturn-Internet, ISP 31692 1.40% 449
Signet B.V. 28878 0.75% 165
Sikkanet - Gomti Cable and Broadband 45942 0.86% 458
Sistemas Fratec S.A. 262149 9.71% 461
Sparkation Pte Ltd 45634 4.80% 474
Spectrum Networks 11404 2.61% 475
SpeedPartner GmbH 34225 88.66% 476
SteepHost DC-UA 47142 5.37% 478
Sudanese Research and Education Network 37197 10.52% 481
SuperInternet Access Pte Ltd 4844 0.42% 484
TB Telecom Sp. z o.o. 51155 0.12% 486
TOP-IX Consortium 25309 73.86% 489
The Tertiary Education and Research Network of South Africa (TENET) 2018 4.66% 139
Trunk Networks Limited 49375 8.46% 503
U.S. Department of Education 10442 48.06% 123
Universidad Panamericana 13679 84.19% 128
Universidad de Guadalajara 2549 30.52% 80
Universidade Estadual de Ponta Grossa 53046 67.97% 129
Universidade Federal de Santa Catarina 263300 38.83% 76
University Of Lampung 56237 1.04% 515
University of New Hampshire 11745 0.47% 517
VentraIP Group (Australia) Pty Ltd 45638 13.54% 523
Vmax Net Telecomunicacoes do Brasil 28277 0.33% 529
Zimcom Internet Solutions, Inc 30059 3.21% 547
edpnet 9031 1.21% 174
filoo GmbH 47215 0.19% 552
internet4YOU GmbH & Co. KG 29014 1.11% 555
interscholz Internet Services GmbH & Co. KG 33843 36.01% 556
iway AG 8758 2.33% 163
manitu GmbH 34240 5.77% 557
mc.net 6479 1.60% 558
ninux.org 197835 61.37% 561
prgmr.com 47066 67.92% 562
snowflake productions gmbh 198249 91.75% 564


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.