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, 14th January 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 37.83% 1
ATT 6389, 7018, 7132 32.29% 2
KDDI 2516 14.84% 3
Verizon Wireless 6167, 22394 64.45% 4
Time Warner Cable 7843, 10796, 11351, 11426, 11427, 12271, 20001 12.95% 5
Deutsche Telekom AG 3320 30.68% 6
Free 12322 34.71% 7
T-Mobile USA 21928 49.09% 8
Telenet 6848 52.69% 9
Telefonica del Peru 6147 14.44% 11
Liberty Global 5089, 6830, 20825, 29562 7.69% 10
RCS & RDS 8708 21.97% 12
Telekom Malaysia 4788 12.57% 13
Belgacom 5432 20.59% 16
Chubu Telecommunications 18126 31.84% 14
SoftBank BB 17676 2.42% 15
Telefonica Czech Republic 5610 36.06% 18
Swisscom 3303 27.13% 17
OTE SA 6799 11.96% 21
VOO 12392 63.79% 19
Hughes Network Systems 6621 22.11% 20
Forthnet 1241 20.82% 22
XS4ALL 3265 58.76% 24
CORPORACION NACIONAL DE TELECOMUNICACIONES 14420, 27757, 27948, 27968 6.75% 25
Opera Software ASA 39832 8.89% 23
Orange Poland 5617, 43447 1.81% 26
Telenor Nordic 2119 9.06% 27
Get AS, Norway 25400, 41164, 47853, 49455, 51135 24.06% 28
Google Fiber 16591 73.92% 30
SKTelecom 9644 9.83% 29
Cisco 109 46.37% 31
StarHub 4657, 55430 7.54% 32
BH Telecom d.d. Sarajevo 9146 9.11% 33
Janet 786 3.46% 34
Elion 3249 13.42% 35
Chunghwa Telecom (HiNet) 3462, 9680, 17419 0.25% 38
Internode 4739 2.09% 36
its communications Inc.(iTSCOM) 9365 5.80% 37
Tele2 AB 1257 9.20% 39
EPT Luxembourg 6661 21.81% 40
CESNET 2852 15.58% 43
OVH 16276 24.04% 42
Indiana University 87 15.75% 45
inexio KGaA 42652 32.32% 41
University of Pennsylvania 55 63.52% 44
RedIRIS 766 8.43% 48
FCCN 1930 23.77% 51
UNINETT 224 26.99% 50
University of Minnesota 57, 217 45.00% 53
Leibniz Supercomputing Centre 12816 38.83% 52
Belnet 2611 10.36% 46
ARNES 2107 33.23% 54
SWITCH 559 5.72% 56
University of South Florida 5661 58.29% 55
M1 Limited 4773, 17547 2.21% 49
MediaCat Div./Community Netowork Center Inc. 17529 6.95% 47
Monash University 56132 31.04% 59
NTT Communications 2914 2.67% 61
TUBITAK ULAKBIM / ULAKNET 8517 1.71% 63
Louisiana State University 2055 74.52% 57
RENATER 2200 5.52% 64
T-Mobile Czech Republic, a.s. 13036 2.96% 58
UNESP 53166 27.01% 65
BelWue 553 6.51% 60
Virginia Tech 1312 55.72% 66
Greek Student Network 197121 7.22% 62
Australian Academic and Research Network (AARNet) 7575 4.99% 74
NIIF/Hungarnet 1955 17.27% 71
Kasetsart University 9411 24.16% 67
University of Iowa 3676 35.95% 72
Universidad de Guadalajara 2549 30.59% 77
Xfone 018 47956 6.33% 68
University of Vermont 1351 66.15% 73
Aristotle University of Thessaloniki 5470 39.97% 75
LITNET 2847 11.95% 70
University Of Hawaii System 6360 14.12% 76
Altibox AS 29695 1.43% 69
GARR 137 1.18% 81
GITN Sdn Berhad 38044 5.60% 84
AMRES - Serbian National Research and Education Network 13092 26.16% 85
Funet 1741 17.79% 83
SPAWAR 22 55.98% 86
University of California, Los Angeles 52 5.74% 79
Hurricane Electric 6939 18.71% 80
Centurylink 209 0.31% 78
SURFnet 1103 1.69% 90
Universidade Federal de Santa Catarina 263300 38.75% 89
CICA/Junta de Andalucía 198096 20.59% 91
AAISP 20712 25.58% 82
University of Buffalo 3685 42.24% 87
Defense Research and Engineering Network 668 6.20% 95
University of Wisconsin - Madison 59 6.55% 94
FasterNet Internet Service Provider 28580 3.71% 88
National Technical University of Athens 3323 16.15% 100
Solcon 12414 10.47% 92
Greek Research & Technology Network 5408 26.17% 101
Nettel Telecomunicações Ltda 53135 5.48% 93
HEAnet 1213 2.97% 103
Karlsruhe Institute of Technology (KIT) 34878 36.94% 99
SuperCSI 2506 1.66% 102
U.S. Department of Education 10442 86.98% 109
PT Cyberindo Aditama (CBN Internet) 4787 1.79% 105
UniNet 4621 12.60% 96
ZeelandNet 15542 21.13% 98
green.ch AG 1836 7.37% 97
Tulane University 10349 10.02% 112
PoP-RS 2716 9.58% 114
Rensselaer Polytechnic Institute 91 42.32% 110
Colt 8220 0.34% 115
Starlink 34602 2.25% 104
CJSC Progressive Technologies 35475 5.78% 106
UFSCar 52888 37.85% 120
Gustavus Adolphus College 17234 65.37% 113
British Sky Broadcasting 5607 9.04% 107
Telecentro S.A. 27747 0.12% 122
Init7 13030 6.06% 111
JARING Communications Sdn Bhd 2042 0.48% 126
Neo Telecoms 8218 8.23% 127
SoftLayer Technologies 36351 3.16% 116
PowerTech Information Systems AS 5381 5.57% 125
Choopa, LLC 20473 0.67% 123
Jiří štrohalm 197307 56.74% 108
GlobalConnect 42525 1.42% 119
Jazz Telecom, S.A. 12715 0.14% 118
The Tertiary Education and Research Network of South Africa (TENET) 2018 2.22% 130
TekSavvy Solutions 5645 0.15% 124
Universidad Panamericana 13679 77.60% 131
Academia Sinica Network 9264 10.84% 134
LENTEL 44030 24.88% 121
Fundacao Parque Tecnologico Itaipu - Brasil 263083 70.78% 137
LeaseWeb BV 16265 4.37% 135
Storm Internet 13319 4.43% 128
Marist College 6124 75.26% 141
Claranet 8426 0.50% 146
Exponential-e 25180 1.15% 139
Bulgaria NREN 6802 25.06% 152
DegNet GmbH 20902 34.39% 132
ATM S.A. 15694 0.32% 151
PoP-SP RNP 1916 0.41% 145
TeliaSonera International Carrier 1299 1.59% 150
Television Costa Blanca SL 199952 25.22% 154
Universidade Federal do Rio Grande do Sul 19200 30.42% 155
Universidade Estadual de Ponta Grossa 53046 92.53% 157
edpnet 9031 1.32% 144
kwaoo.com 24904 15.78% 136
Georgia Institute of Technology 2637 1.28% 153
Alog Data Centers do Brasil 16397, 26592 1.77% 159
Bredband2 AB 29518 0.25% 143
UNAM 278 2.46% 168
guifi.net 49835 23.31% 142
Free University of Bozen-Bolzano 51708 41.79% 158
Ponto de Presença da RNP na Bahia 53164 23.19% 163
Integra 7385 0.13% 149
Signet B.V. 28878 0.53% 446
Cooperativa Telefónica de Villa Gdor. Galvez Ltda. 11815 0.84% 241
NetAssist 29632 22.17% 161
CESCA 13041 0.69% 224
iway AG 8758 8.01% 160
Opensvit - PEF Fenix VT 39399 1.72% 386
RESTENA 2602 5.06% 167
Sudanese Research and Education Network 37197 5.07% 162
University of California, San Diego 7377 0.83% 129
US Dept of Transportation 2576 33.61% 495
CAT TELECOM PCL. 9931 0.21% 221
Sunrise Communications AG 5426, 6730, 9214 0.18% 174
IPTRON.NET 12757 87.50% 183
ADDIX Internet Services 25415 1.60% 184
AIMES Grid Services CIC 48954 33.93% 185
AMS-IX 1200 43.87% 186
ASDASD srl / POPWIFI 28929 1.39% 187
Airsat 28026 0.53% 195
Al-Quds University 41346 3.14% 196
Alhambra Eidos 15450 26.98% 197
Association tetaneutral.net 197422 29.86% 201
Atlas Networks 21743 0.60% 202
BDCOM ONLINE LIMITED 7565, 24122 0.22% 203
BIT BV 12859 4.01% 204
BSO Network Solutions 31216 1.20% 205
Bangalore Broadband Network Pvt Ltd 55947 0.83% 209
Bogons Ltd 3213 0.48% 218
CEDIA 27841 50.33% 223
CZ.NIC 25192 78.93% 231
CloudFlare, Inc. 13335 23.56% 237
Core-Backbone GmbH 33891 0.51% 242
Critical Colocation 52342 24.33% 243
Custodian Data Centre 50300 3.52% 244
Cybera Inc 15296 2.10% 245
DMZGlobal 17649 1.81% 248
DTS 24183 2.55% 249
DataChambers 29765 6.19% 250
Dhiraagu 7642 0.24% 254
Digital Pacific Pty Ltd 55803 1.71% 256
DirectVPS 29028 71.83% 257
DreamHost 26347 24.95% 259
Duocast BV 31477 1.27% 260
E-Werk Wels AG - it&tel 21013 0.63% 261
EGATE Networks Inc. 13657 0.22% 263
ENTANET International Ltd. 8468 0.16% 264
ERNET India 2697 0.57% 265
Ehiweb.it 43989 10.52% 266
Electronics Engineering Polytechnic Institute of Surabaya 46052 47.07% 267
Etop sp. z o.o. / DataHouse.Pl 20853 0.49% 272
Exa Networks Limited 30740 0.41% 273
Excellent Hosting Sweden AB 50986 32.34% 274
FX Networks 9503 0.56% 276
Faculdade de Ciências Aplicadas da Unicamp 53187 0.30% 277
FidoNet 8282 9.42% 280
FirstDigital Telecom 13415 0.27% 281
Fluidata 39545 25.04% 284
FranTech Solutions 53667 10.19% 138
GNC Alfa 49800 35.04% 288
Georgian College of AA&T 19764 0.36% 289
Go6 Institute 198644 39.74% 291
Gotalandsnatet AB 12597 0.29% 292
Host Virtual, Inc 36236 9.76% 297
Host.MD 28990 20.88% 298
ICT Valle Umbra 15605 0.31% 302
IKS GmbH 15725 3.48% 304
IP-Max SA 25091 75.95% 305
ITsjefen AS 44381 26.19% 307
JT 8681 6.46% 318
Jaguar Network 30781 9.05% 319
Jolokia Networks? 12182 22.55% 321
Keycom 25178 6.24% 324
LGA Telecom Pte Ltd 10024 0.44% 327
Lankacom 5087 0.48% 332
Layer42 Networks 8121 0.54% 333
Louisiana Optical Network Initiative 32440 1.55% 164
MAEHDROS 49677 51.02% 336
MDlink GmbH 43341 50.00% 339
MERLIN 16796 0.33% 340
MaineREN - University of Maine System 557 0.49% 343
Mainlab GmbH 21501 0.89% 344
Makonix 52173 4.70% 345
Maxiweb Internet Provider 28140 21.97% 348
Media-Hosts Inc 14442 0.24% 349
Micro Logic Systems 56055 1.11% 352
MiroNet GmbH 49983 17.34% 353
Mythic Beasts Ltd 44684 33.96% 356
NETHINKS GmbH 8319 0.14% 358
NETIS TELECOM 25592 2.61% 359
NIC México 22894, 28498, 28499, 28504 32.65% 361
NYI 11403 4.24% 364
National Informatics Centre 4758 0.43% 365
NedZone Internet BV 25459 0.48% 368
Neology 37105 4.93% 371
Nepal Research and Education Network 45170 34.45% 372
NetNam Corporation 24173 0.31% 373
Netnod 8674 62.12% 374
Netwerkvereniging Coloclue 8283 1.55% 375
NineWire Pty LTd 132020 99.94% 377
Nominet UK 8683 50.00% 379
Novso 25358 61.20% 381
Oquei Provedor 262761 0.21% 388
Oxilion B.V. 48539 0.88% 393
PCextreme B.V. 48635 17.26% 395
PREGINET 9821 25.68% 396
PT Pasifik Satelit Nusantara 9875 0.11% 400
PT. Wifian Solution 58485 30.09% 405
PTK Centertel 43447 66.67% 407
Prolocation 41887 0.81% 412
Quonix Networks 17185 1.61% 419
RAU - UdelaR 1797 42.30% 420
RTComm.RU ISP 8342 0.12% 421
Red Académica de Centros de Investigación y Universidades Nacionales REACCIUN 20312, 27807 6.42% 423
Redstone 5552 1.94% 425
Remex Consulting Pty Limited 55328 46.88% 427
SARENET 3262 28.57% 431
SIDN 1140 36.53% 432
SJM Steffann 57771 76.14% 433
Safaricom Ltd 37061 0.78% 435
Saturn-Internet, ISP 31692 2.58% 437
Sauk Valley Community College 13953 69.78% 438
Shelby Broadband 18786 0.14% 444
Sikkanet - Gomti Cable and Broadband 45942 0.59% 447
Sistemas Fratec S.A. 262149 10.13% 450
Solido Networks ApS 12617 15.07% 455
Sparkation Pte Ltd 45634 18.22% 463
Spectrum Networks 11404 14.76% 464
SpeedPartner GmbH 34225 99.07% 465
SteepHost DC-UA 47142 2.60% 467
SuperInternet Access Pte Ltd 4844 0.91% 470
SupraNet Communications, Inc 4150 0.21% 471
TB Telecom Sp. z o.o. 51155 2.04% 472
TCA INFORMATICA LTDA 53137 0.45% 473
TOP-IX Consortium 25309 86.62% 475
TRIPLET BROADBAND 45758 0.88% 476
Tanzania Network Information Center 37045 80.33% 478
ThaiSarn 3836 97.02% 483
The Kansas Research and Education Network 2495 1.03% 484
Thor Datacenter 50613 0.19% 485
Trunk Networks Limited 49375 27.26% 489
Universidad de Carabobo 27893 0.23% 499
University Of Lampung 56237 0.87% 500
University of New Hampshire 11745 34.18% 502
Utility Line Italia srl 9026 34.72% 504
VTC - INTECOM 38248 0.22% 506
VentraIP Group (Australia) Pty Ltd 45638 29.35% 508
Vmax Net Telecomunicacoes do Brasil 28277 1.14% 514
Xente 57309 33.60% 526
Zimcom Internet Solutions, Inc 30059 4.12% 531
domainfactory GmbH 34011 0.90% 534
filoo GmbH 47215 2.57% 536
iNES Group 12310 0.36% 538
internet4YOU GmbH & Co. KG 29014 0.28% 539
interscholz Internet Services GmbH & Co. KG 33843 61.99% 540
manitu GmbH 34240 39.15% 541
mc.net 6479 11.90% 542
mur.at - Verein zur Frderung von Netzkwerkkunst 39837 69.61% 543
next layer Telekommunikationsdienstleistungs- und BeratungsGmbH 1764 0.56% 544
ninux.org 197835 55.77% 545
prgmr.com 47066 24.31% 546
snowflake productions gmbh 198249 5.06% 548


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.