This page lists the IPv6 measurement per AS number, with a weighting
on the ranking to reduce the impact of occasional-measurement AS
such as conference shownets, and collections of few points but
with relatively high IPv6 preference ratio.
The ranking is based on the IPv6 preference for IPv4 addresses
with the given AS as origin-AS based on the BGP data for the
period of the sample. Where insufficient samples exist to reliably
plot the AS for a given week, is considered to have no samples,
and the maximum sample count is used to weight the average
IPv6 preference by dividing the square of the seen number of
samples (nsamp) by the square of the maximum number of samples
possible. (nsamp²/maxsamp²).
The iso3166 economycode of each AS based on its registration is also listed.
Columns for numeric and alphabetic fields (ie except data and gnuplot commands) are sortable.
| Economy |
ASN |
Details |
Current Monthly v6pref |
Average samples/mo |
Data and gnuplot command |
| US | AS19782 | INDIANAGIGAPOP - Indiana University |  100.0000 | 1349 | .dat gnuplot json |
| CN | AS23910 | CNGI-CERNET2-AS-AP China Next Generation Internet CERNET2 | 100.0000 | 590 | .dat gnuplot json |
| NZ | AS24226 | CATALYST-IT-AS-AP Catalyst IT | 91.4169 | 584 | .dat gnuplot json |
| AU | AS38083 | CURTIN-UNI-AS-AP Curtin University | 80.6055 | 793 | .dat gnuplot json |
| AU | AS24555 | APRICOT-APNIC-ASN ASN used for conferences in AP region | 69.2149 | 512 | .dat gnuplot json |
| AU | AS4608 | APNIC-AP Asia Pacific Network Information Centre | 63.2504 | 535 | .dat gnuplot json |
| CZ | AS197451 | | 61.2045 | 492 | .dat gnuplot json |
| US | AS1312 | VA-TECH-AS - Virginia Polytechnic Institute and State Univ. | 58.9212 | 410 | .dat gnuplot json |
| GB | AS786 | JANET The JNT Association | 54.1023 | 35410 | .dat gnuplot json |
| US | AS3598 | MICROSOFT-CORP-AS - Microsoft Corp | 51.4258 | 796 | .dat gnuplot json |
| US | AS6939 | HURRICANE - Hurricane Electric, Inc. | 48.0239 | 1256 | .dat gnuplot json |
| TW | AS17713 | NSYSU-TW National Sun Yat-sen University | 45.1004 | 429 | .dat gnuplot json |
| NZ | AS18119 | ACSDATA-NZ ACSData | 42.6070 | 1060 | .dat gnuplot json |
| EU | AS2547 | BMENET-AS Budapest University of Technology and Economics | 37.9834 | 409 | .dat gnuplot json |
| HK | AS4528 | HKU-AS-HK The University of Hong Kong | 35.7271 | 317 | .dat gnuplot json |
| GB | AS20712 | AS20712 Andrews and Arnold Ltd | 34.9372 | 432 | .dat gnuplot json |
| SE | AS12552 | IPO-EU IP-Only Telecommunication Networks AB | 34.0299 | 506 | .dat gnuplot json |
| CN | AS4538 | ERX-CERNET-BKB China Education and Research Network Center | 32.5974 | 2014 | .dat gnuplot json |
| GB | AS8426 | CLARANET-AS ClaraNET LTD | 32.3603 | 5416 | .dat gnuplot json |
| US | AS6122 | ICN-AS - Iowa Communications Network | 31.3776 | 322 | .dat gnuplot json |
| US | AS109 | CISCO-EU-109 Cisco Systems Global ASN - ARIN Assigned | 31.3525 | 414 | .dat gnuplot json |
| RU | AS31214 | TIS-DIALOG-AS TIS-DIALOG Autonomous system | 29.0741 | 483 | .dat gnuplot json |
| EU | AS2107 | ARNES-NET ARNES | 29.0256 | 398 | .dat gnuplot json |
| US | AS87 | INDIANA-AS - Indiana University | 28.3470 | 2758 | .dat gnuplot json |
| LT | AS2847 | LITNET Kaunas University of Technology | 27.4593 | 546 | .dat gnuplot json |
| TH | AS9411 | NONTRINET-AS-AP Office of University Computer Services | 27.1357 | 685 | .dat gnuplot json |
| RO | AS8708 | RDSNET RCS & RDS S.A. | 24.5542 | 29817 | .dat gnuplot json |
| DE | AS12816 | MWN-AS Leibniz-Rechenzentrum Muenchen | 23.9787 | 457 | .dat gnuplot json |
| GR | AS5470 | ASAUTHNET AUTH-NET-AS | 23.9085 | 3875 | .dat gnuplot json |
| EU | AS1930 | RCCN Rede Ciencia Tecnologia e Sociedade (RCTS) | 22.3597 | 550 | .dat gnuplot json |
| CN | AS4813 | BACKBONE-GUANGDONG-AP China Telecom(Group) | 22.3333 | 294 | .dat gnuplot json |
| US | AS55 | UPENN-CIS - University of Pennsylvania | 21.9298 | 329 | .dat gnuplot json |
| CA | AS6453 | GLOBEINTERNET TATA Communications | 21.6292 | 304 | .dat gnuplot json |
| EU | AS1955 | HBONE-AS HUNGARNET | 21.5546 | 708 | .dat gnuplot json |
| US | AS25 | UCB - University of California at Berkeley | 21.3911 | 464 | .dat gnuplot json |
| MY | AS17564 | GITN-PCN-AS-AP GITN (M) Sdn. Bhd. | 20.6557 | 297 | .dat gnuplot json |
| JP | AS2516 | KDDI KDDI CORPORATION | 20.6203 | 7667 | .dat gnuplot json |
| NZ | AS24183 | DTS-ISP-CORE1-AP DTS LTD | 19.6119 | 1670 | .dat gnuplot json |
| US | AS714 | APPLE Apple Inc | 19.0678 | 509 | .dat gnuplot json |
| US | AS6621 | HNS-DIRECPC - Hughes Network Systems | 18.8421 | 787 | .dat gnuplot json |
| CN | AS7497 | CSTNET-AS-AP Computer Network Information Center | 18.7563 | 530 | .dat gnuplot json |
| AU | AS7575 | AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) | 17.7394 | 5165 | .dat gnuplot json |
| FR | AS12322 | PROXAD Free SAS | 17.7201 | 16129 | .dat gnuplot json |
| SK | AS42841 | ANTIK ANTIK Telecom s.r.o | 16.1836 | 545 | .dat gnuplot json |
| CZ | AS2852 | CESNET2 CESNET, z.s.p.o. | 15.5684 | 1219 | .dat gnuplot json |
| US | AS15169 | GOOGLE - Google Inc. | 14.9226 | 1969 | .dat gnuplot json |
| NO | AS224 | UNINETT UNINETT, The Norwegian University & Research Network | 14.5493 | 597 | .dat gnuplot json |
| PL | AS39439 | ACSYSTEMY-AS AC Systemy Komputerowe Stanislaw Bor spolka jawna | 12.3558 | 380 | .dat gnuplot json |
| US | AS22394 | CELLCO - Cellco Partnership DBA Verizon Wireless | 12.2248 | 10703 | .dat gnuplot json |
| JP | AS18126 | CTCX Chubu Telecommunications Company, Inc. | 12.1424 | 1717 | .dat gnuplot json |
| NL | AS3265 | XS4ALL-NL XS4ALL Internet BV | 11.4437 | 1776 | .dat gnuplot json |
| CN | AS56048 | CMNET-BEIJING-AP China Mobile Communicaitons Corporation | 11.3939 | 606 | .dat gnuplot json |
| ID | AS55666 | GMEDIA-AS-ID PT Media Sarana Data | 11.2016 | 1258 | .dat gnuplot json |
| UA | AS34700 | CITYNET-AS Maxnet Autonomous System | 11.1276 | 567 | .dat gnuplot json |
| BT | AS17660 | DRUKNET-AS DrukNet ISP | 10.9792 | 278 | .dat gnuplot json |
| PL | AS30975 | TKK Telewizja Kablowa Koszalin | 10.4608 | 427 | .dat gnuplot json |
| US | AS7018 | ATT-INTERNET4 - AT&T Services, Inc. | 9.5545 | 21928 | .dat gnuplot json |
| GB | AS12496 | IDNET Infinity Developments Limited | 9.3851 | 334 | .dat gnuplot json |
| EU | AS559 | SWITCH SWITCH, Swiss Education and Research Network | 9.1750 | 877 | .dat gnuplot json |
| EU | AS1741 | FUNETAS FUNET autonomous system | 9.1331 | 581 | .dat gnuplot json |
| US | AS217 | UMN-AGS-NET-AS - University of Minnesota | 8.9041 | 335 | .dat gnuplot json |
| BE | AS2611 | BELNET BELNET | 8.7095 | 728 | .dat gnuplot json |
| NZ | AS38477 | UNLEASH-AS-NZ Unleash | 8.6957 | 1057 | .dat gnuplot json |
| TW | AS1659 | ERX-TANET-ASN1 Tiawan Academic Network (TANet) Information Center | 8.4472 | 3546 | .dat gnuplot json |
| TH | AS4621 | UNSPECIFIED UNINET-TH | 8.3840 | 736 | .dat gnuplot json |
| GB | AS42689 | CABLECOM-AS Cablecom Networking Limited | 8.1953 | 2655 | .dat gnuplot json |
| GR | AS5408 | GR-NET Greek Research & Technology Network, www.grnet.gr | 8.0163 | 2062 | .dat gnuplot json |
| AU | AS4739 | INTERNODE-AS Internode Pty Ltd | 7.8628 | 41124 | .dat gnuplot json |
| US | AS59 | WISC-MADISON-AS - University of Wisconsin Madison | 7.7922 | 378 | .dat gnuplot json |
| NZ | AS17412 | WOOSHWIRELESSNZ Woosh Wireless | 7.6583 | 26593 | .dat gnuplot json |
| NZ | AS23655 | SNAP-NZ-AS Snap Internet Limited | 7.6156 | 12959 | .dat gnuplot json |
| TW | AS18177 | NCKU-TW National Cheng Kung University | 7.6059 | 538 | .dat gnuplot json |
| DE | AS35244 | KMS-DE_AS AS for KMS Munich | 7.5567 | 323 | .dat gnuplot json |
| CN | AS4847 | CNIX-AP China Networks Inter-Exchange | 7.3970 | 2304 | .dat gnuplot json |
| CZ | AS8251 | NFX_ZSPO FreeTel, s.r.o. | 7.3216 | 496 | .dat gnuplot json |
| KR | AS6619 | SAMSUNGSDS-AS-KR SamsungSDS Inc. | 7.2503 | 561 | .dat gnuplot json |
| BR | AS28571 | Universidade de Sao Paulo - USP | 7.1633 | 392 | .dat gnuplot json |
| US | AS53347 | PREMIER-COMMUNICATIONS - Premier Communications | 6.7696 | 5098 | .dat gnuplot json |
| EU | AS1653 | SUNET SUNET Swedish University Network | 6.7549 | 726 | .dat gnuplot json |
| TW | AS9264 | ASNET Academic Sinica Network | 6.7327 | 348 | .dat gnuplot json |
| US | AS6360 | UNIVHAWAII - University of Hawaii | 6.6282 | 271 | .dat gnuplot json |
| PL | AS197227 | | 6.6148 | 359 | .dat gnuplot json |
| MY | AS24514 | MYREN-MY Malaysian Research & Education Network | 6.5621 | 487 | .dat gnuplot json |
| LU | AS6661 | EPT-LU Entreprise des P. et T. Luxembourg | 6.5179 | 961 | .dat gnuplot json |
| NO | AS39832 | NO-OPERA Opera Software ASA | 6.2568 | 6010 | .dat gnuplot json |
| AU | AS56132 | MONASHUNI-AU-AS-AP Monash University, | 6.2173 | 1528 | .dat gnuplot json |
| NZ | AS38025 | WASP-AS-NZ 68 Bower Street, Napier | 6.1576 | 414 | .dat gnuplot json |
| PL | AS8267 | CYFRONET-AS Metropolitan Area Network Autonomous System | 5.9864 | 326 | .dat gnuplot json |
| JP | AS17529 | MEDIACAT COMMUNITY NETWORK CENTER INC. | 5.9347 | 314 | .dat gnuplot json |
| NZ | AS9503 | FX-PRIMARY-AS FX Networks Limited | 5.6199 | 3355 | .dat gnuplot json |
| ID | AS24521 | DATAUTAMA-NET-AS-ID PT. DATA Utama Dinamika | 5.5882 | 544 | .dat gnuplot json |
| AU | AS24437 | UWA-AS-AP University of Western Australia | 5.4167 | 600 | .dat gnuplot json |
| EU | AS1835 | FSKNET-DK Forskningsnettet - Danish network for Research and Education | 5.4054 | 438 | .dat gnuplot json |
| US | AS5056 | INS-NET-2 - Iowa Network Services | 5.2259 | 4425 | .dat gnuplot json |
| MY | AS2042 | ERX-JARING JARING Communications Sdn Bhd. | 5.1826 | 817 | .dat gnuplot json |
| EU | AS553 | BELWUE Landeshochschulnetz Baden-Wuerttemberg (BelWue) | 5.1576 | 639 | .dat gnuplot json |
| DK | AS35376 | TRE-FOR-BREDBAAND-AS TRE-FOR Bredbaand A/S | 5.0870 | 609 | .dat gnuplot json |
| UA | AS20590 | DEC-AS Donbass Electronic Communications Ltd. | 4.5399 | 754 | .dat gnuplot json |
| AU | AS18371 | NCABLE-AP Neighbourhood Cable | 4.5007 | 497 | .dat gnuplot json |
| DK | AS42525 | GlobalConnect a/s | 4.4118 | 278 | .dat gnuplot json |
| US | AS2381 | WISCNET1-AS - WiscNet | 4.2649 | 558 | .dat gnuplot json |
| BR | AS16735 | Companhia de Telecomunicacoes do Brasil Central | 4.2489 | 805 | .dat gnuplot json |
| BR | AS1916 | Rede Nacional de Ensino e Pesquisa | 4.2362 | 444 | .dat gnuplot json |
| SE | AS2843 | LIUNET Linkopings Universitet | 4.1872 | 359 | .dat gnuplot json |
| US | AS210 | WEST-NET-WEST - Utah Education Network |
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