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 June 2015 (notes)

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

Participating Network ASN(s) IPv6 deployment
ATT 6389, 7018, 7132 52.42% 2
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 34.51% 1
KDDI 2516 21.64% 3
Verizon Wireless 6167, 22394 68.73% 4
Time Warner Cable 7843, 10796, 11351, 11426, 11427, 12271, 20001 17.75% 5
Deutsche Telekom AG 3320 19.56% 6
T-Mobile USA 21928 46.69% 7
Telefonica del Peru 6147 19.32% 9
Free 12322 20.51% 8
Liberty Global 5089, 6830, 20825, 29562 5.04% 10
Telenet 6848 54.49% 11
SoftBank BB 17676 3.30% 12
Chubu Telecommunications 18126 42.47% 15
Swisscom 3303 41.24% 14
Telekom Malaysia 4788 12.52% 13
Belgacom 5432 21.72% 16
RCS & RDS 8708 13.83% 18
MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 30.59% 17
OTE SA 6799 13.26% 19
Telefonica Czech Republic 5610 29.89% 21
GVT 18881 3.61% 20
Forthnet 1241 21.53% 22
VOO 12392 58.27% 23
Saudi Telecom Company (STC) 25019, 31177, 39386, 39891, 41426 4.72% 24
STNet 7522 39.86% 27
Orange Poland 5617, 43447 3.22% 25
SKTelecom 9644 12.31% 26
Hughes Network Systems 6621 22.43% 28
CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 7.85% 29
XS4ALL 3265 55.87% 30
Telenor Nordic 2119 7.96% 31
AT&T Wireless 20057 2.16% 32
Google Fiber 16591 66.61% 33
Get AS, Norway 25400, 41164, 47853, 49455, 51135 23.16% 36
Opera Software ASA 39832 0.15% 34
DNA 16086 17.70% 35
Sprint Wireless 3651 3.19% 37
its communications Inc.(iTSCOM) 9365 7.63% 42
Tele2 AB 1257 18.00% 39
StarHub 4657, 55430 6.12% 44
Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.24% 43
Comteco Ltda 27839 15.78% 48
BH Telecom d.d. Sarajevo 9146 6.80% 46
Energy Group Networks 18779 54.96% 47
Elion 3249 14.80% 41
Internode 4739 1.96% 50
EPT Luxembourg 6661 19.03% 49
inexio KGaA 42652 24.16% 51
Janet 786 6.95% 45
M1 Limited 4773, 17547 4.14% 53
OVH 16276 14.14% 56
Init7 13030 5.38% 63
Cisco 109 47.18% 40
MediaCat Div./Community Netowork Center Inc. 17529 7.51% 61
T-Mobile Czech Republic, a.s. 13036 6.83% 55
Ziggo 9143 0.51% 59
Deutsche Glasfaser 60294 41.21% 64
CESNET 2852 20.89% 52
Belnet 2611 13.55% 54
Altibox AS 29695 1.29% 71
Greek Student Network 197121 13.71% 73
Xfone 018 47956 5.04% 75
FCCN 1930 23.90% 58
ZeelandNet 15542 4.41% 82
BelWue 553 7.92% 74
Leibniz Supercomputing Centre 12816 24.42% 57
Hurricane Electric 6939 8.92% 83
ARNES 2107 30.40% 70
Fastweb Spa 12874 0.11% 87
FasterNet Internet Service Provider 28580 6.93% 89
UNINETT 224 12.18% 67
Monash University 56132 34.63% 72
SWITCH 559 8.99% 60
AAISP 20712 28.43% 96
Brno University of Technology 197451 60.66% 86
Elisa 719 2.25% 105
University of Minnesota 57, 217 41.16% 65
RedIRIS 766 6.98% 62
TekSavvy Solutions 5645 0.25% 103
Solcon 12414 3.61% 107
University of Pennsylvania 55 38.42% 76
LITNET 2847 14.33% 95
SoftLayer Technologies 36351 0.72% 113
NIIF/Hungarnet 1955 10.82% 90
Jazz Telecom, S.A. 12715 0.14% 115
Kasetsart University 9411 9.22% 104
Greek Research & Technology Network 5408 19.70% 93
University of Buffalo 3685 49.24% 100
GITN Sdn Berhad 38044 4.51% 94
Jiří štrohalm 197307 43.45% 120
Louisiana State University 2055 75.86% 81
Edutel 39309 1.92% 136
green.ch AG 1836 7.21% 124
Australian Academic and Research Network (AARNet) 7575 2.87% 85
TUBITAK ULAKBIM / ULAKNET 8517 1.80% 66
Virginia Tech 1312 45.33% 78
CJSC Progressive Technologies 35475 5.67% 135
Funet 1741 6.14% 109
Sonera 1759 0.14% 134
UNESP 53166 23.28% 77
GARR 137 1.39% 92
Choopa, LLC 20473 1.08% 132
UFSCar 52888 44.87% 121
University of South Florida 5661 33.37% 98
LENTEL 44030 6.21% 139
University of California, Los Angeles 52 6.14% 111
GlobalConnect 42525 1.68% 140
UniNet 4621 23.13% 128
Starlink 34602 1.72% 144
Nettel Telecomunicações Ltda 53135 1.32% 160
PowerTech Information Systems AS 5381 6.42% 137
PoP-RS 2716 10.91% 88
AMRES - Serbian National Research and Education Network 13092 8.89% 99
Rensselaer Polytechnic Institute 91 69.13% 117
Premier Communications 53347 6.71% 151
Tulane University 10349 30.56% 126
DegNet GmbH 20902 24.13% 162
Sudanese Research and Education Network 37197 13.08% 168
Bredband2 AB 29518 0.34% 165
RENATER 2200 2.02% 80
guifi.net 49835 3.20% 163
NTT Communications 2914 0.99% 68
University of Iowa 3676 30.65% 97
Storm Internet 13319 2.96% 154
Universidade Federal de Santa Catarina 263300 33.98% 79
Karlsruhe Institute of Technology (KIT) 34878 16.64% 123
NetAssist 29632 6.83% 167
Makonix 52173 21.02% 178
Universidad de Guadalajara 2549 19.50% 84
Cooperativa Telefónica de Villa Gdor. Galvez Ltda. 11815 0.73% 176
SURFnet 1103 1.09% 101
RESTENA 2602 10.18% 172
LeaseWeb BV 16265 0.11% 180
University Of Hawaii System 6360 17.18% 112
PT Cyberindo Aditama (CBN Internet) 4787 1.70% 143
University of Wisconsin - Madison 59 4.53% 119
AMS-IX 1200 46.06% 200
ASDASD srl / POPWIFI 28929 0.84% 201
ATM S.A. 15694 0.15% 161
Academia Sinica Network 9264 11.90% 145
Alcom 3238 0.98% 210
Alhambra Eidos 15450 2.95% 211
Alog Data Centers do Brasil 16397, 26592 0.22% 212
Association tetaneutral.net 197422 8.32% 216
Atlas Networks 21743 0.58% 217
BIT BV 12859 2.35% 219
Bulgaria NREN 6802 3.77% 235
CESCA 13041 0.10% 240
CZ.NIC 25192 61.80% 247
Claranet 8426 0.38% 169
CloudFlare, Inc. 13335 54.60% 255
Copel Telecomunicacoes S/A 14868 0.14% 156
Core-Backbone GmbH 33891 2.95% 259
Custodian Data Centre 50300 0.24% 261
Cybera Inc 15296 0.53% 262
Cybernet1 21632 2.37% 263
DataChambers 29765 3.43% 268
Digital Pacific Pty Ltd 55803 5.61% 274
DirectVPS 29028 40.11% 275
DreamHost 26347 39.13% 277
Duocast BV 31477 1.35% 278
E-Werk Wels AG - it&tel 21013 0.21% 279
EGATE Networks Inc. 13657 0.34% 281
ENTANET International Ltd. 8468 0.13% 282
Ehiweb.it 43989 0.95% 284
Exa Networks Limited 30740 0.25% 290
Exponential-e 25180 0.22% 152
FX Networks 9503 0.52% 293
FidoNet 8282 4.70% 297
FirstDigital Telecom 13415 0.25% 298
FranTech Solutions 53667 3.20% 302
Free University of Bozen-Bolzano 51708 14.90% 181
Freethought Internet Limited 41000 22.78% 303
Fundacao Parque Tecnologico Itaipu - Brasil 263083 57.02% 142
Georgian College of AA&T 19764 0.22% 307
Grenada Internet Exchange 14432 100.00% 312
Gustavus Adolphus College 17234 47.65% 314
HEAnet 1213 4.08% 130
Host Virtual, Inc 36236 9.66% 318
ICT Valle Umbra 15605 0.18% 323
IKS GmbH 15725 0.51% 325
IP-Max SA 25091 8.03% 326
ITsjefen AS 44381 1.71% 328
JT 8681 0.13% 342
Jaguar Network 30781 9.85% 343
Jolokia Networks? 12182 0.33% 345
KaseNet 199087 9.11% 348
LGA Telecom Pte Ltd 10024 0.34% 352
Layer42 Networks 8121 0.17% 358
Louisiana Optical Network Initiative 32440 0.51% 361
MPY 34263 0.16% 367
Marist College 6124 74.05% 170
Miconet Sp. z o.o. 35007 0.27% 377
Mythic Beasts Ltd 44684 25.27% 382
NAITWAYS 57119 0.87% 383
NETIS TELECOM 25592 1.36% 385
NYI 11403 1.01% 390
National Informatics Centre 4758 0.32% 164
Neo Telecoms 8218 2.54% 157
Neology 37105 14.18% 396
Nepal Research and Education Network 45170 67.89% 397
NetNam Corporation 24173 0.42% 398
Netnod 8674 33.20% 399
Netwerkvereniging Coloclue 8283 0.12% 400
NineWire Pty LTd 132020 100.00% 402
Opensvit - PEF Fenix VT 39399 2.41% 411
Oxilion B.V. 48539 0.42% 418
PCextreme B.V. 48635 27.91% 420
PREGINET 9821 1.43% 421
PT. Wifian Solution 58485 2.13% 430
PT.MEDIA SARANA DATA(GMEDIA) 55666 0.12% 431
PTK Centertel 43447 100.00% 432
PoP-SP RNP 1916 0.45% 146
Quonix Networks 17185 0.20% 445
Red Académica de Centros de Investigación y Universidades Nacionales REACCIUN 20312, 27807 0.82% 449
Region 7 ESC 30350 58.05% 452
Remex Consulting Pty Limited 55328 67.65% 453
SARENET 3262 0.18% 457
SIDN 1140 29.64% 458
SPAWAR 22 89.10% 108
Safaricom Ltd 37061 0.25% 461
Saturn-Internet, ISP 31692 2.78% 463
Sauk Valley Community College 13953 84.15% 464
Shelby Broadband 18786 0.19% 471
Sify Technologies Limited 9583 0.12% 472
Signet B.V. 28878 0.55% 473
Sistemas Fratec S.A. 262149 7.27% 477
Sparkation Pte Ltd 45634 12.04% 490
Spectrum Networks 11404 2.17% 491
SpeedPartner GmbH 34225 99.46% 492
SuomiCom 16302 5.06% 497
SuperInternet Access Pte Ltd 4844 1.02% 498
TCA INFORMATICA LTDA 53137 1.83% 501
TOP-IX Consortium 25309 85.00% 503
The Tertiary Education and Research Network of South Africa (TENET) 2018 3.04% 159
Trunk Networks Limited 49375 19.30% 518
U.S. Department of Education 10442 60.89% 131
Universidad Panamericana 13679 85.95% 148
Universidade Estadual de Ponta Grossa 53046 94.55% 127
University of New Hampshire 11745 0.99% 530
University of Vermont 1351 38.17% 138
University of the Philippines Diliman 23862 5.40% 531
Utility Line Italia srl 9026 3.92% 532
VentraIP Group (Australia) Pty Ltd 45638 52.26% 536
Vmax Net Telecomunicacoes do Brasil 28277 1.34% 542
WINTECH Communications, Inc. 17683 0.11% 548
Xente 57309 0.54% 555
Zimcom Internet Solutions, Inc 30059 9.98% 560
edpnet 9031 1.03% 173
filoo GmbH 47215 0.41% 565
interscholz Internet Services GmbH & Co. KG 33843 21.87% 569
iway AG 8758 3.21% 158
kwaoo.com 24904 2.15% 570
ninux.org 197835 72.37% 575
prgmr.com 47066 46.88% 576
snowflake productions gmbh 198249 64.08% 578


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.