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 July 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 39.24% 1
ATT 6389, 7018, 7132 52.10% 2
KDDI 2516 17.59% 3
Verizon Wireless 6167, 22394 70.27% 4
Time Warner Cable 7843, 10796, 11351, 11426, 11427, 12271, 20001 20.10% 5
T-Mobile USA 21928 57.55% 6
Deutsche Telekom AG 3320 28.31% 7
Liberty Global 5089, 6830, 20825, 29562 5.67% 8
SoftBank BB 17676 3.25% 9
Telefonica del Peru 6147 20.14% 10
Free 12322 31.15% 11
Telekom Malaysia 4788 13.77% 12
Telenet 6848 43.10% 13
Chubu Telecommunications 18126 32.24% 14
OTE SA 6799 15.73% 15
Swisscom 3303 42.41% 16
Belgacom 5432 24.79% 17
Forthnet 1241 20.95% 18
RCS & RDS 8708 20.05% 19
MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 49.29% 20
Telefonica Czech Republic 5610 20.20% 21
SKTelecom 9644 8.59% 22
GVT 18881 3.97% 23
VOO 12392 61.90% 24
Hughes Network Systems 6621 23.16% 25
STNet 7522 30.09% 26
Orange Poland 5617, 43447 2.93% 27
Telenor Nordic 2119 7.72% 28
AT&T Wireless 20057 2.46% 29
DNA 16086 26.46% 30
XS4ALL 3265 31.71% 31
Sprint Wireless 3651 3.15% 32
Saudi Telecom Company (STC) 25019, 31177, 39386, 39891, 41426 2.21% 33
Opera Software ASA 39832 0.49% 34
KPN 1136 2.50% 35
Google Fiber 16591 71.77% 36
Get AS, Norway 25400, 41164, 47853, 49455, 51135 19.05% 37
Tele2 AB 1257 16.66% 38
its communications Inc.(iTSCOM) 9365 5.72% 39
StarHub 4657, 55430 7.97% 40
Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.25% 41
Elion 3249 11.50% 42
CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 7.19% 43
BH Telecom d.d. Sarajevo 9146 5.65% 44
EPT Luxembourg 6661 26.32% 45
Comteco Ltda 27839 11.46% 46
Internode 4739 2.01% 47
M1 Limited 4773, 17547 6.66% 48
inexio KGaA 42652 33.30% 49
Cisco 109 41.59% 50
T-Mobile Czech Republic, a.s. 13036 5.16% 51
NTT Communications 2914 1.33% 52
Deutsche Glasfaser 60294 40.73% 53
SuperCSI 2506 0.16% 54
MediaCat Div./Community Netowork Center Inc. 17529 5.92% 55
OVH 16276 13.71% 56
Altibox AS 29695 2.18% 57
Xfone 018 47956 4.96% 59
Janet 786 3.75% 60
GITN Sdn Berhad 38044 6.83% 61
ZeelandNet 15542 3.09% 62
Monash University 56132 49.12% 63
Kasetsart University 9411 18.11% 64
Greek Student Network 197121 13.93% 65
CESNET 2852 13.99% 66
BelWue 553 7.64% 67
Fastweb Spa 12874 0.19% 68
TUBITAK ULAKBIM / ULAKNET 8517 2.22% 69
Australian Academic and Research Network (AARNet) 7575 3.01% 70
FasterNet Internet Service Provider 28580 6.72% 71
Leibniz Supercomputing Centre 12816 26.53% 72
Hurricane Electric 6939 26.71% 73
Ziggo 9143 0.17% 74
Elisa 719 2.06% 77
Belnet 2611 5.84% 78
UNINETT 224 8.71% 79
Jiří štrohalm 197307 39.52% 80
University of Minnesota 57, 217 47.86% 82
TekSavvy Solutions 5645 0.22% 83
Greek Research & Technology Network 5408 21.60% 84
University of Pennsylvania 55 49.38% 85
AAISP 20712 30.49% 86
Solcon 12414 2.93% 87
Copel Telecomunicacoes S/A 14868 1.15% 88
UniNet 4621 16.45% 89
SoftLayer Technologies 36351 1.93% 90
ARNES 2107 22.63% 92
FCCN 1930 23.06% 93
Sonera 1759 0.12% 94
Edutel 39309 1.24% 95
SWITCH 559 9.18% 96
Aristotle University of Thessaloniki 5470 24.83% 97
Jazz Telecom, S.A. 12715 0.14% 98
University of Buffalo 3685 51.74% 99
LITNET 2847 10.71% 100
University of Twente 1133 21.33% 101
University of South Florida 5661 51.88% 102
GlobalConnect 42525 2.08% 103
green.ch AG 1836 4.95% 104
Academia Sinica Network 9264 2.41% 105
CJSC Progressive Technologies 35475 5.15% 106
LENTEL 44030 8.97% 107
Louisiana State University 2055 78.78% 108
AMRES - Serbian National Research and Education Network 13092 12.25% 109
Virginia Tech 1312 56.93% 110
Init7 13030 2.60% 111
Choopa, LLC 20473 1.47% 112
Premier Communications 53347 8.82% 113
Funet 1741 5.06% 114
PT Cyberindo Aditama (CBN Internet) 4787 1.63% 116
Starlink 34602 1.28% 117
University of California, Los Angeles 52 5.56% 118
Nettel Telecomunicações Ltda 53135 1.07% 120
Storm Internet 13319 4.61% 121
NIIF/Hungarnet 1955 7.61% 122
GARR 137 1.96% 123
Brno University of Technology 197451 42.53% 124
FranTech Solutions 53667 23.02% 125
RedIRIS 766 7.78% 126
National Technical University of Athens 3323 6.19% 127
Rensselaer Polytechnic Institute 91 57.64% 128
DegNet GmbH 20902 20.15% 129
UNESP 53166 24.90% 130
TeliaSonera International Carrier 1299 3.33% 132
PowerTech Information Systems AS 5381 5.05% 133
Bredband2 AB 29518 0.15% 134
NetAssist 29632 8.69% 135
AMS-IX 1200 47.41% 150
ASDASD srl / POPWIFI 28929 0.93% 151
ATM S.A. 15694 0.20% 152
Academic Scientific Research Computer Network of Armenia (ASNET-AM) 47623 0.17% 155
Alcom 3238 1.79% 162
Alhambra Eidos 15450 0.90% 163
Alog Data Centers do Brasil 16397, 26592 0.61% 164
Association tetaneutral.net 197422 3.58% 168
Atlas Networks 21743 0.25% 169
BIT BV 12859 2.41% 171
Bogons Ltd 3213 0.40% 185
Bulgaria NREN 6802 5.23% 187
CESCA 13041 0.13% 192
CICA/Junta de Andalucía 198096 0.21% 194
CZ.NIC 25192 47.28% 200
Claranet 8426 0.40% 207
CloudFlare, Inc. 13335 33.30% 209
Cooperativa Telefónica de Villa Gdor. Galvez Ltda. 11815 0.55% 214
Core-Backbone GmbH 33891 2.88% 215
Custodian Data Centre 50300 0.21% 217
Cybernet1 21632 0.16% 219
DataChambers 29765 2.44% 224
Defense Research and Engineering Network 668 9.68% 228
Digicel Trinidad & Tobago 27800 1.90% 231
Digital Pacific Pty Ltd 55803 3.65% 232
DirectVPS 29028 41.37% 233
DreamHost 26347 29.84% 235
Duocast BV 31477 1.78% 236
E-Werk Wels AG - it&tel 21013 0.44% 237
EGATE Networks Inc. 13657 0.43% 239
ENTANET International Ltd. 8468 0.13% 240
Ehiweb.it 43989 1.14% 243
Exa Networks Limited 30740 0.22% 250
Exponential-e 25180 0.16% 252
FX Networks 9503 0.29% 254
FidoNet 8282 4.09% 259
FirstDigital Telecom 13415 0.35% 260
Free University of Bozen-Bolzano 51708 18.93% 264
Fundacao Parque Tecnologico Itaipu - Brasil 263083 68.38% 266
Georgia Institute of Technology 2637 6.44% 270
Gustavus Adolphus College 17234 45.60% 279
HEAnet 1213 5.44% 280
Hivane Networks 34019 73.43% 282
Host Virtual, Inc 36236 6.73% 285
ICT Valle Umbra 15605 0.19% 290
IKS GmbH 15725 1.82% 292
IP-Max SA 25091 6.54% 293
IPLAN 16814 0.14% 294
ITsjefen AS 44381 1.52% 296
JARING Communications Sdn Bhd 2042 0.23% 305
Jaguar Network 30781 6.35% 311
Jolokia Networks? 12182 0.73% 313
Karlsruhe Institute of Technology (KIT) 34878 27.22% 317
LGA Telecom Pte Ltd 10024 0.30% 323
Lankacom 5087 0.37% 328
Layer42 Networks 8121 0.80% 329
Louisiana Optical Network Initiative 32440 1.44% 333
Luna.nl BV 12902 4.19% 334
MPY 34263 0.11% 340
MaineREN - University of Maine System 557 0.23% 343
Makonix 52173 15.35% 345
Marist College 6124 63.07% 346
Maxiweb Internet Provider 28140 0.45% 349
Mythic Beasts Ltd 44684 30.23% 357
NETIS TELECOM 25592 3.09% 360
NYI 11403 1.18% 365
National Informatics Centre 4758 0.34% 366
Nautile 45345 0.15% 369
Neo Telecoms 8218 1.96% 372
Neology 37105 10.36% 374
Nepal Research and Education Network 45170 49.67% 375
NetNam Corporation 24173 0.32% 376
Netnod 8674 25.40% 377
Netwerkvereniging Coloclue 8283 0.77% 378
NineWire Pty LTd 132020 99.94% 380
Opensvit - PEF Fenix VT 39399 3.75% 389
Oxilion B.V. 48539 1.45% 396
PCextreme B.V. 48635 16.03% 399
PREGINET 9821 1.63% 400
PT Pasifik Satelit Nusantara 9875 0.54% 404
PT. Wifian Solution 58485 4.43% 409
PT.MEDIA SARANA DATA(GMEDIA) 55666 0.13% 410
PTK Centertel 43447 66.67% 411
PoP-RS 2716 9.87% 414
PoP-SP RNP 1916 0.19% 415
Quonix Networks 17185 0.18% 426
RAU - UdelaR 1797 3.72% 427
RENATER 2200 3.06% 428
RESTENA 2602 8.21% 429
Red Académica de Centros de Investigación y Universidades Nacionales REACCIUN 20312, 27807 4.91% 432
Region 7 ESC 30350 0.39% 435
Remex Consulting Pty Limited 55328 50.71% 436
SARENET 3262 0.24% 440
SIDN 1140 9.91% 441
SPAWAR 22 56.74% 444
SURFnet 1103 0.85% 445
Safaricom Ltd 37061 0.17% 446
Saturn-Internet, ISP 31692 4.65% 448
Sauk Valley Community College 13953 57.90% 449
Shelby Broadband 18786 0.22% 456
Signet B.V. 28878 0.53% 458
Sistemas Fratec S.A. 262149 17.33% 462
Sparkation Pte Ltd 45634 5.86% 475
Spectrum Networks 11404 1.64% 476
SpeedPartner GmbH 34225 99.31% 477
Sudanese Research and Education Network 37197 6.23% 482
SuomiCom 16302 4.31% 484
SuperInternet Access Pte Ltd 4844 1.06% 485
TCA INFORMATICA LTDA 53137 0.40% 488
TOP-IX Consortium 25309 73.73% 490
The Kansas Research and Education Network 2495 1.68% 500
The Tertiary Education and Research Network of South Africa (TENET) 2018 2.04% 501
Trunk Networks Limited 49375 25.09% 506
Tulane University 10349 29.34% 507
UFSCar 52888 32.92% 512
UNAM 278 0.47% 514
US Dept of Transportation 2576 18.75% 516
Universidad Panamericana 13679 51.47% 520
Universidade Estadual de Ponta Grossa 53046 84.39% 523
Universidade Federal de Santa Catarina 263300 27.51% 524
University Of Hawaii System 6360 21.78% 526
University of California, San Diego 7377 4.07% 528
University of Iowa 3676 17.37% 529
University of New Hampshire 11745 1.79% 531
University of Vermont 1351 20.67% 532
University of Wisconsin - Madison 59 6.19% 533
University of the Philippines Diliman 23862 0.86% 534
Utility Line Italia srl 9026 3.42% 535
VentraIP Group (Australia) Pty Ltd 45638 48.04% 539
Vescnet 262792 1.71% 540
Vmax Net Telecomunicacoes do Brasil 28277 1.09% 545
Xente 57309 0.32% 560
Zimcom Internet Solutions, Inc 30059 7.86% 565
domainfactory GmbH 34011 3.60% 568
edpnet 9031 0.91% 570
guifi.net 49835 1.73% 572
iNES Group 12310 0.43% 574
interscholz Internet Services GmbH & Co. KG 33843 41.17% 576
iway AG 8758 2.82% 577
kwaoo.com 24904 1.13% 578
manitu GmbH 34240 2.00% 579
mc.net 6479 0.34% 580
mur.at - Verein zur Frderung von Netzkwerkkunst 39837 7.76% 581
next layer Telekommunikationsdienstleistungs- und BeratungsGmbH 1764 1.51% 582
ninux.org 197835 86.17% 583
prgmr.com 47066 0.80% 584
snowflake productions gmbh 198249 64.11% 586


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.