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, 13th May 2015 (notes)

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

Participating Network ASN(s) IPv6 deployment
ATT 6389, 7018, 7132 52.13% 1
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 37.09% 2
KDDI 2516 17.71% 3
Verizon Wireless 6167, 22394 69.16% 4
Time Warner Cable 7843, 10796, 11351, 11426, 11427, 12271, 20001 16.46% 5
Deutsche Telekom AG 3320 27.21% 6
Free 12322 29.08% 8
T-Mobile USA 21928 54.81% 7
Telefonica del Peru 6147 14.80% 9
Liberty Global 5089, 6830, 20825, 29562 5.12% 10
Telenet 6848 45.61% 11
SoftBank BB 17676 3.52% 13
Telekom Malaysia 4788 16.02% 12
RCS & RDS 8708 19.76% 15
Chubu Telecommunications 18126 36.49% 14
Belgacom 5432 21.26% 16
MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 44.11% 17
OTE SA 6799 13.40% 19
Telefonica Czech Republic 5610 24.57% 20
Saudi Telecom Company (STC) 25019 7.07% 18
VOO 12392 57.52% 21
Swisscom 3303 21.90% 22
Forthnet 1241 21.92% 24
Orange Poland 5617, 43447 2.36% 26
GVT 18881 3.47% 23
CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 8.47% 25
Hughes Network Systems 6621 21.11% 27
STNet 7522 35.05% 28
XS4ALL 3265 44.31% 29
SKTelecom 9644 8.77% 30
Telenor Nordic 2119 7.81% 31
Google Fiber 16591 73.22% 32
Opera Software ASA 39832 0.55% 33
Get AS, Norway 25400, 41164, 47853, 49455, 51135 24.63% 34
AT&T Wireless 20057 1.82% 35
its communications Inc.(iTSCOM) 9365 6.11% 41
Tele2 AB 1257 13.00% 38
Janet 786 5.57% 37
BH Telecom d.d. Sarajevo 9146 6.67% 44
StarHub 4657, 55430 6.69% 43
Elion 3249 13.24% 39
Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.25% 42
Comteco Ltda 27839 11.04% 45
Internode 4739 1.96% 47
EPT Luxembourg 6661 26.26% 46
Sprint Wireless 3651 1.60% 40
Cisco 109 45.41% 36
inexio KGaA 42652 31.15% 50
M1 Limited 4773, 17547 5.64% 52
OVH 16276 19.49% 49
CESNET 2852 19.42% 48
Monash University 56132 29.20% 57
MediaCat Div./Community Netowork Center Inc. 17529 8.61% 60
University of Pennsylvania 55 66.34% 58
University of Minnesota 57, 217 53.31% 51
T-Mobile Czech Republic, a.s. 13036 5.47% 61
Australian Academic and Research Network (AARNet) 7575 2.83% 73
Deutsche Glasfaser 60294 41.75% 63
University of Buffalo 3685 65.99% 68
Rensselaer Polytechnic Institute 91 77.59% 71
Virginia Tech 1312 58.98% 72
Ziggo 9143 0.53% 65
Belnet 2611 10.48% 54
Greek Student Network 197121 13.41% 75
UNINETT 224 14.35% 53
NTT Communications 2914 1.87% 70
Altibox AS 29695 2.08% 74
Xfone 018 47956 7.94% 79
Brno University of Technology 197451 64.24% 76
ARNES 2107 27.52% 66
BelWue 553 7.25% 77
ZeelandNet 15542 4.32% 81
AMRES - Serbian National Research and Education Network 13092 12.94% 83
Leibniz Supercomputing Centre 12816 28.45% 69
TUBITAK ULAKBIM / ULAKNET 8517 2.04% 59
Kasetsart University 9411 10.37% 88
FasterNet Internet Service Provider 28580 5.56% 90
DNA 16086 4.82% 67
FCCN 1930 26.58% 55
Marist College 6124 73.32% 107
LITNET 2847 12.39% 92
NIIF/Hungarnet 1955 15.40% 86
Hurricane Electric 6939 18.85% 91
SWITCH 559 8.36% 62
GITN Sdn Berhad 38044 6.20% 100
AAISP 20712 29.59% 98
RedIRIS 766 9.26% 56
Choopa, LLC 20473 2.73% 104
Gustavus Adolphus College 17234 72.73% 103
University of Iowa 3676 32.41% 87
University of California, Los Angeles 52 6.13% 97
University Of Hawaii System 6360 16.49% 89
Jiří štrohalm 197307 42.35% 126
Solcon 12414 3.52% 113
University of California, San Diego 7377 7.80% 96
Init7 13030 2.33% 121
SoftLayer Technologies 36351 1.94% 117
Jazz Telecom, S.A. 12715 0.11% 122
Louisiana State University 2055 79.02% 84
University of Wisconsin - Madison 59 5.75% 108
green.ch AG 1836 6.13% 127
CJSC Progressive Technologies 35475 6.85% 124
Aristotle University of Thessaloniki 5470 19.38% 106
UniNet 4621 10.13% 133
GARR 137 1.69% 95
Funet 1741 6.41% 109
UFSCar 52888 38.18% 116
Edutel 39309 1.68% 135
GlobalConnect 42525 1.88% 139
PT Cyberindo Aditama (CBN Internet) 4787 1.67% 145
Starlink 34602 1.61% 130
LENTEL 44030 8.27% 136
TekSavvy Solutions 5645 0.11% 141
Greek Research & Technology Network 5408 22.82% 112
RENATER 2200 3.15% 93
Bredband2 AB 29518 0.33% 146
UNESP 53166 30.46% 82
PowerTech Information Systems AS 5381 5.63% 138
Academia Sinica Network 9264 15.48% 140
Sudanese Research and Education Network 37197 8.57% 153
Nettel Telecomunicações Ltda 53135 2.37% 150
Tulane University 10349 27.92% 125
DegNet GmbH 20902 22.56% 164
SPAWAR 22 94.22% 102
PoP-RS 2716 11.07% 85
Premier Communications 53347 7.95% 147
HEAnet 1213 4.09% 115
Storm Internet 13319 4.81% 156
University of South Florida 5661 40.61% 99
SURFnet 1103 1.11% 120
Makonix 52173 34.01% 169
LeaseWeb BV 16265 0.15% 178
guifi.net 49835 3.98% 175
CICA/Junta de Andalucía 198096 0.11% 105
Cooperativa Telefónica de Villa Gdor. Galvez Ltda. 11815 1.02% 173
Universidade Federal do Rio Grande do Sul 19200 10.92% 177
NetAssist 29632 5.93% 163
Karlsruhe Institute of Technology (KIT) 34878 16.38% 131
next layer Telekommunikationsdienstleistungs- und BeratungsGmbH 1764 0.67% 570
RESTENA 2602 7.61% 176
National Technical University of Athens 3323 6.04% 111
University of Vermont 1351 41.73% 134
NETIS TELECOM 25592 6.76% 161
edpnet 9031 1.33% 165
iway AG 8758 2.68% 154
AMS-IX 1200 47.79% 199
ASDASD srl / POPWIFI 28929 1.20% 200
ATM S.A. 15694 0.13% 166
Alhambra Eidos 15450 0.63% 210
Alog Data Centers do Brasil 16397, 26592 1.30% 211
Association tetaneutral.net 197422 5.98% 215
Atlas Networks 21743 0.39% 216
BDCOM ONLINE LIMITED 7565, 24122 0.52% 217
BIT BV 12859 3.23% 218
CESCA 13041 0.37% 239
CZ.NIC 25192 60.82% 246
Claranet 8426 0.51% 160
CloudFlare, Inc. 13335 40.06% 253
Conexim Australia Pty Ltd 37996 15.89% 256
Core-Backbone GmbH 33891 1.10% 257
Critical Colocation 52342 5.92% 258
Custodian Data Centre 50300 0.20% 259
DataChambers 29765 4.77% 266
Defense Research and Engineering Network 668 7.15% 114
Digital Pacific Pty Ltd 55803 4.27% 272
DirectVPS 29028 56.42% 273
DreamHost 26347 27.82% 275
Duocast BV 31477 2.42% 276
E-Werk Wels AG - it&tel 21013 0.13% 277
ENTANET International Ltd. 8468 0.16% 280
Ehiweb.it 43989 0.53% 282
Etop sp. z o.o. / DataHouse.Pl 20853 0.36% 288
Exponential-e 25180 0.20% 152
FX Networks 9503 0.39% 292
FidoNet 8282 4.74% 296
FirstDigital Telecom 13415 0.36% 297
FranTech Solutions 53667 10.34% 301
Free University of Bozen-Bolzano 51708 19.26% 167
Fundacao Parque Tecnologico Itaipu - Brasil 263083 59.23% 129
Georgia Institute of Technology 2637 2.31% 174
Hivane Networks 34019 89.54% 313
Host Virtual, Inc 36236 7.56% 316
IKS GmbH 15725 0.93% 323
IPLAN 16814 0.20% 157
ITsjefen AS 44381 0.44% 326
JARING Communications Sdn Bhd 2042 0.12% 335
Jaguar Network 30781 8.71% 341
Jolokia Networks? 12182 0.57% 343
Layer42 Networks 8121 0.39% 356
Louisiana Optical Network Initiative 32440 0.32% 359
MPY 34263 0.11% 365
Mythic Beasts Ltd 44684 14.36% 380
NAITWAYS 57119 0.12% 381
NYI 11403 0.22% 387
National Informatics Centre 4758 0.42% 155
Neo Telecoms 8218 1.90% 170
Neology 37105 18.23% 393
NetNam Corporation 24173 0.62% 395
Netnod 8674 23.24% 396
Netwerkvereniging Coloclue 8283 1.01% 397
NineWire Pty LTd 132020 100.00% 399
Opensvit - PEF Fenix VT 39399 2.74% 179
Oxilion B.V. 48539 0.41% 414
PCextreme B.V. 48635 29.87% 416
PREGINET 9821 1.41% 417
PT Pasifik Satelit Nusantara 9875 0.12% 421
PTK Centertel 43447 66.67% 428
PoP-SP RNP 1916 0.16% 143
Red Académica de Centros de Investigación y Universidades Nacionales REACCIUN 20312, 27807 4.64% 445
Region 7 ESC 30350 5.09% 448
Remex Consulting Pty Limited 55328 8.97% 449
SIDN 1140 27.78% 454
Safaricom Ltd 37061 0.30% 457
Saturn-Internet, ISP 31692 0.30% 459
Sauk Valley Community College 13953 63.66% 460
Signet B.V. 28878 0.41% 468
Sistemas Fratec S.A. 262149 6.95% 472
Sparkation Pte Ltd 45634 2.90% 485
Spectrum Networks 11404 2.52% 486
SpeedPartner GmbH 34225 99.20% 487
SuperInternet Access Pte Ltd 4844 0.96% 493
TCA INFORMATICA LTDA 53137 0.21% 496
TOP-IX Consortium 25309 72.75% 498
Tanzania Network Information Center 37045 76.49% 501
Television Costa Blanca SL 199952 1.93% 504
The Kansas Research and Education Network 2495 3.13% 508
The Tertiary Education and Research Network of South Africa (TENET) 2018 5.23% 148
Transmog Inc. SAL CYBERIA 24634 0.15% 512
Trunk Networks Limited 49375 6.93% 513
U.S. Department of Education 10442 25.93% 149
UNAM 278 0.29% 518
US Dept of Transportation 2576 13.73% 180
Universidad Panamericana 13679 77.57% 118
Universidade Estadual de Ponta Grossa 53046 80.14% 128
Universidade Federal de Santa Catarina 263300 31.27% 80
University of New Hampshire 11745 1.44% 526
University of the Philippines Diliman 23862 0.83% 527
Utility Line Italia srl 9026 3.47% 528
VentraIP Group (Australia) Pty Ltd 45638 40.86% 532
Vmax Net Telecomunicacoes do Brasil 28277 2.11% 538
Zimcom Internet Solutions, Inc 30059 6.10% 556
achermann consulting ag 43291 0.88% 558
iNES Group 12310 0.37% 563
internet4YOU GmbH & Co. KG 29014 0.34% 564
interscholz Internet Services GmbH & Co. KG 33843 55.36% 565
kwaoo.com 24904 2.07% 566
manitu GmbH 34240 7.35% 567
mc.net 6479 0.87% 568
ninux.org 197835 85.56% 571
prgmr.com 47066 90.94% 572
snowflake productions gmbh 198249 73.31% 574


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.