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 August 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 33.57% 1
ATT 6389, 7018, 7132 51.21% 2
KDDI 2516 21.34% 3
Verizon Wireless 6167, 22394 70.99% 4
Time Warner Cable 7843, 10796, 11351, 11426, 11427, 12271, 20001 20.23% 5
T-Mobile USA 21928 57.40% 6
Deutsche Telekom AG 3320 30.32% 7
Telefonica del Peru 6147 20.32% 8
SoftBank BB 17676 3.67% 9
Telekom Malaysia 4788 15.36% 10
Free 12322 31.61% 11
Liberty Global 5089, 6830, 20825, 29562 5.40% 12
Chubu Telecommunications 18126 43.44% 13
Telenet 6848 41.57% 14
Swisscom 3303 40.09% 15
GVT 18881 7.93% 16
MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 3243 55.21% 17
SKTelecom 9644 10.23% 18
RCS & RDS 8708 17.35% 19
Belgacom 5432 26.82% 20
OTE SA 6799 16.83% 21
Forthnet 1241 27.62% 22
O2 Czech Republic 5610 22.55% 23
Orange Poland 5617, 43447 3.48% 24
STNet 7522 39.90% 25
VOO 12392 60.14% 26
CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 8.00% 27
Telenor Nordic 2119 7.54% 28
AT&T Wireless 20057 3.32% 29
XS4ALL 3265 38.27% 30
Sprint Wireless 3651 4.00% 31
DNA 16086 25.69% 32
Hughes Network Systems 6621 19.83% 33
KPN 1136 2.48% 34
TELUS 852 2.85% 35
Get AS, Norway 25400, 41164, 47853, 49455, 51135 18.91% 36
British Sky Broadcasting 5607 1.99% 37
Tele2 AB 1257 17.49% 38
Mediacom Communications 30036 6.40% 39
Google Fiber 16591 71.98% 40
its communications Inc.(iTSCOM) 9365 6.22% 41
Elion 3249 12.06% 42
StarHub 4657, 55430 9.76% 43
Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.28% 44
Cisco 109 41.14% 45
Saudi Telecom Company (STC) 25019, 31177, 39386, 39891, 41426 0.57% 46
BH Telecom d.d. Sarajevo 9146 5.44% 47
Comteco Ltda 27839 12.58% 48
Opera Software ASA 39832 0.21% 49
M1 Limited 4773, 17547 7.04% 50
Internode 4739 4.24% 51
EPT Luxembourg 6661 25.03% 52
OVH 16276 16.64% 53
inexio KGaA 42652 38.18% 54
Janet 786 2.95% 55
MediaCat Div./Community Netowork Center Inc. 17529 6.56% 56
T-Mobile Czech Republic, a.s. 13036 4.97% 57
UNINETT 224 13.21% 58
TUBITAK ULAKBIM / ULAKNET 8517 2.26% 59
Deutsche Glasfaser 60294 36.34% 60
SWITCH 559 10.21% 61
Altibox AS 29695 2.35% 62
University of Minnesota 57, 217 44.41% 63
Copel Telecomunicacoes S/A 14868 2.98% 64
Kasetsart University 9411 35.69% 65
University of Pennsylvania 55 48.39% 67
Belnet 2611 7.28% 68
ZeelandNet 15542 3.05% 69
Fastweb Spa 12874 0.27% 70
UNESP 53166 25.55% 71
Monash University 56132 35.37% 72
CESNET 2852 12.98% 73
Xfone 018 47956 3.88% 74
Leibniz Supercomputing Centre 12816 23.64% 75
Virginia Tech 1312 70.70% 76
Elisa 719 1.83% 77
Hurricane Electric 6939 14.56% 78
Universidade Federal de Santa Catarina 263300 40.40% 79
Louisiana State University 2055 71.67% 80
BelWue 553 5.26% 81
Ziggo 9143 0.28% 82
Centurylink 209 0.11% 83
PoP-RS 2716 10.82% 84
FasterNet Internet Service Provider 28580 5.30% 85
University of Iowa 3676 45.80% 87
SoftLayer Technologies 36351 2.79% 88
SPAWAR 22 59.74% 89
FCCN 1930 12.97% 90
TekSavvy Solutions 5645 0.23% 91
Greek Student Network 197121 14.77% 92
GITN Sdn Berhad 38044 8.42% 93
ARNES 2107 19.05% 94
Funet 1741 5.71% 95
University of Twente 1133 26.70% 96
Solcon 12414 2.69% 97
AAISP 20712 23.37% 98
Jiří štrohalm 197307 47.93% 99
Sonera 1759 0.16% 100
University Of Hawaii System 6360 26.51% 101
UniNet 4621 16.49% 102
University of Buffalo 3685 28.83% 103
Choopa, LLC 20473 4.17% 104
Universidade Estadual de Ponta Grossa 53046 72.91% 105
University of South Florida 5661 20.08% 106
AMRES - Serbian National Research and Education Network 13092 9.98% 107
Tulane University 10349 25.50% 108
RedIRIS 766 3.20% 109
GlobalConnect 42525 0.94% 110
Jazz Telecom, S.A. 12715 0.11% 111
University of Wisconsin - Madison 59 6.91% 112
Init7 13030 2.91% 113
Greek Research & Technology Network 5408 32.70% 114
LENTEL 44030 6.93% 115
Georgia Institute of Technology 2637 9.96% 116
University of California, Los Angeles 52 5.63% 117
RENATER 2200 1.96% 118
Ponto de Presença da RNP na Bahia 53164 3.70% 119
Universidad Panamericana 13679 79.27% 120
Fundacao Parque Tecnologico Itaipu - Brasil 263083 67.66% 121
green.ch AG 1836 3.28% 122
Karlsruhe Institute of Technology (KIT) 34878 13.14% 123
Starlink 34602 1.44% 124
Australian Academic and Research Network (AARNet) 7575 2.31% 125
Rensselaer Polytechnic Institute 91 56.37% 126
HEAnet 1213 5.41% 127
PowerTech Information Systems AS 5381 2.61% 128
SURFnet 1103 0.92% 129
kwaoo.com 24904 5.78% 130
NIIF/Hungarnet 1955 5.38% 132
CAT TELECOM PCL. 9931 0.14% 133
PT Cyberindo Aditama (CBN Internet) 4787 1.56% 134
CJSC Progressive Technologies 35475 4.35% 135
Edutel 39309 1.05% 136
Premier Communications 53347 13.67% 137
University of California, San Diego 7377 5.93% 139
LITNET 2847 5.16% 140
Brno University of Technology 197451 34.66% 143
University of Vermont 1351 26.12% 144
The Tertiary Education and Research Network of South Africa (TENET) 2018 1.60% 145
PoP-SP RNP 1916 0.44% 146
GARR 137 1.61% 147
TeliaSonera International Carrier 1299 3.45% 149
US Dept of Transportation 2576 20.68% 152
PTK Centertel 43447 73.81% 153
Integra 7385 0.23% 154
Cooperativa Telefónica de Villa Gdor. Galvez Ltda. 11815 0.78% 156
Bredband2 AB 29518 0.20% 157
iway AG 8758 2.88% 158
Exponential-e 25180 0.31% 159
IPLAN 16814 0.23% 160
IPTRON.NET 12757 100.00% 172
AMS-IX 1200 75.62% 176
ASDASD srl / POPWIFI 28929 1.95% 177
ATM S.A. 15694 0.21% 178
Academia Sinica Network 9264 0.59% 181
AdNet Telecom 5541 0.12% 184
Airsat 28026 0.42% 187
Alcom 3238 1.71% 189
Alhambra Eidos 15450 3.41% 190
Alog Data Centers do Brasil 16397, 26592 0.24% 191
Association tetaneutral.net 197422 3.92% 196
Atlas Networks 21743 0.82% 197
BDCOM ONLINE LIMITED 7565, 24122 0.28% 198
BIT BV 12859 1.80% 199
Bogons Ltd 3213 0.15% 214
Bulgaria NREN 6802 4.68% 216
CCTBB Conicet Bahia Blanca 28109 100.00% 218
CEDIA 27841 66.84% 219
CESCA 13041 0.32% 220
CICA/Junta de Andalucía 198096 0.59% 222
CZ.NIC 25192 75.61% 228
Claranet 8426 0.45% 235
CloudFlare, Inc. 13335 39.69% 237
Core-Backbone GmbH 33891 1.89% 242
Custodian Data Centre 50300 0.19% 244
Cybera Inc 15296 0.42% 245
Cybernet1 21632 1.36% 246
DataChambers 29765 2.88% 251
DegNet GmbH 20902 18.50% 256
Digicel Trinidad & Tobago 27800 11.41% 259
Digital Pacific Pty Ltd 55803 2.99% 260
DirectVPS 29028 37.12% 261
DreamHost 26347 39.01% 263
Duocast BV 31477 1.39% 264
ENTANET International Ltd. 8468 0.19% 268
Ehiweb.it 43989 0.84% 270
Etop sp. z o.o. / DataHouse.Pl 20853 0.29% 276
Exa Networks Limited 30740 0.27% 277
FX Networks 9503 0.40% 280
FidoNet 8282 3.09% 285
FirstDigital Telecom 13415 0.42% 286
FranTech Solutions 53667 3.54% 290
Free University of Bozen-Bolzano 51708 19.07% 291
Georgian College of AA&T 19764 0.33% 296
Go6 Institute 198644 97.83% 298
Gustavus Adolphus College 17234 60.95% 303
Hivane Networks 34019 58.58% 305
Host Virtual, Inc 36236 8.15% 308
IKS GmbH 15725 2.27% 315
IP-Max SA 25091 5.25% 316
JARING Communications Sdn Bhd 2042 0.25% 327
JT 8681 0.19% 332
Jaguar Network 30781 2.92% 333
Jolokia Networks? 12182 0.78% 335
KINBER 14877 0.29% 337
KaseNet 199087 9.16% 339
Layer42 Networks 8121 0.41% 350
LeaseWeb BV 16265 0.17% 352
Louisiana Optical Network Initiative 32440 0.23% 354
Luna.nl BV 12902 3.78% 355
MERLIN 16796 0.32% 360
MPY 34263 0.18% 361
MaineREN - University of Maine System 557 0.36% 364
Makonix 52173 4.08% 366
Marist College 6124 71.64% 367
Maxiweb Internet Provider 28140 0.49% 370
Mythic Beasts Ltd 44684 36.63% 378
NAITWAYS 57119 0.58% 379
NETIS TELECOM 25592 0.69% 381
NYI 11403 0.60% 386
Nautile 45345 0.20% 390
Neo Telecoms 8218 1.77% 393
Neology 37105 15.33% 395
NetAssist 29632 6.15% 397
NetNam Corporation 24173 0.25% 398
Netnod 8674 44.64% 399
Nettel Telecomunicações Ltda 53135 0.78% 400
Netwerkvereniging Coloclue 8283 1.49% 401
NineWire Pty LTd 132020 100.00% 403
Opensvit - PEF Fenix VT 39399 3.61% 412
Oxilion B.V. 48539 1.73% 419
PCextreme B.V. 48635 16.59% 422
PREGINET 9821 1.70% 423
PT Pasifik Satelit Nusantara 9875 0.44% 427
Quonix Networks 17185 0.14% 446
RAU - UdelaR 1797 3.08% 447
RESTENA 2602 7.03% 448
Red Académica de Centros de Investigación y Universidades Nacionales REACCIUN 20312, 27807 12.70% 451
Region 7 ESC 30350 23.83% 454
SARENET 3262 0.41% 459
SIDN 1140 31.97% 460
Safaricom Ltd 37061 0.36% 463
Saturn-Internet, ISP 31692 4.94% 465
Sauk Valley Community College 13953 49.78% 466
Shelby Broadband 18786 0.19% 473
Signet B.V. 28878 0.53% 475
Sistemas Fratec S.A. 262149 11.00% 479
Solido Networks ApS 12617 1.67% 484
Sota Solutions Ltd 31742 0.75% 487
Sparkation Pte Ltd 45634 6.61% 492
Spectrum Networks 11404 2.23% 493
SpeedPartner GmbH 34225 99.27% 494
Storm Internet 13319 1.56% 498
Sudanese Research and Education Network 37197 7.20% 500
SuomiCom 16302 3.65% 502
SuperInternet Access Pte Ltd 4844 0.63% 503
SupraNet Communications, Inc 4150 0.22% 504
TCA INFORMATICA LTDA 53137 0.84% 506
TOP-IX Consortium 25309 79.85% 508
Tanzania Network Information Center 37045 98.82% 511
The Kansas Research and Education Network 2495 1.62% 518
Trunk Networks Limited 49375 28.11% 523
UFSCar 52888 3.77% 528
UNAM 278 0.81% 530
UNET 29396 0.15% 531
Universidad de Guadalajara 2549 12.00% 537
Universidade Federal do Rio Grande do Sul 19200 1.21% 538
University Of Lampung 56237 0.95% 539
University of New Hampshire 11745 2.96% 541
Utility Line Italia srl 9026 3.15% 543
VentraIP Group (Australia) Pty Ltd 45638 52.91% 547
Vescnet 262792 3.19% 548
Vmax Net Telecomunicacoes do Brasil 28277 1.23% 553
Xente 57309 2.53% 567
Zimcom Internet Solutions, Inc 30059 5.91% 572
achermann consulting ag 43291 0.17% 574
domainfactory GmbH 34011 7.27% 575
edpnet 9031 0.95% 577
filoo GmbH 47215 0.95% 578
guifi.net 49835 3.04% 579
iNES Group 12310 0.45% 581
interscholz Internet Services GmbH & Co. KG 33843 34.38% 583
manitu GmbH 34240 10.03% 584
mc.net 6479 0.60% 585
next layer Telekommunikationsdienstleistungs- und BeratungsGmbH 1764 0.93% 587
ninux.org 197835 72.15% 588
prgmr.com 47066 36.18% 589
snowflake productions gmbh 198249 51.31% 591


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.