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Requests for CAIDA Restricted Datasets
CAIDA provides access to several categories of restricted datasets: macroscopic topology measurements (e.g. the IPv4 Routed /24 Topology Dataset, anonymized internet traces (e.g. the Anonymized Internet Traces 2013 Dataset, a DDoS Attack in 2007, the DNS root/gTLD RTT Dataset, and several datasets from the UCSD Network Telescope, including backscatter datasets (e.g. The Backscatter-2008 Dataset). For a full list see our Data Overview.

Approved Requests for CAIDA Restricted Datasets

The table below shows the number of requests for all restricted datasets combined approved by CAIDA since 2002. This typically is about 75% to 80% of the requests received. CAIDA has been tracking this information in detail since about 2008. Earlier numbers have been reconstructed from email archives and are only estimates.

Last updated on 2017-Feb-26 08:11:57 UTC

TotalJanFebMarAprMayJunJulAugSepOctNovDec
200211000010022330
200375359398564977
200497539951078712148
20051721191919141610109261910
20061821017269228151914131910
200718911152219251415146161913
2008296193925281630271915252528
2009362121933391932452142314227
2010426252770394634271839363530
2011478265547454541423441274332
2012525374234515243473641386044
2013615515665494143444239646655
2014601513548496050593552476253
2015597514067535046553668445136
2016674525763616063553845566856
2017634419

The breakup of these requests for each main category of restricted data is given in these separate tables.

Request Statistics for All Restricted Datasets

The graph below provides an overview of user interest for the main categories of restricted dataset provide by CAIDA. For each year three columns show the total number of requests received (left column) the total number of requests approved (middle column), and the number of users that actually accessed their account (right column).

In this graph 'passive' refers to the Anonymized Internet Trace datasets and 'rt-telescope' refers to the near-real-time UCSD Telescope data.

Geographical Distribution of Users of Restricted Data

We use the TLD extracted from the email addresses of our users to get an overview of the type of user of CAIDA data (e.g., educational, commercial, government, etc.) and, from country-level TLDs, the geographic distribution of our users. The graph below shows the most popular TLDs over the years.

Last updated on 2017-Feb-26 08:20:29 UTC

eduUS Educational1215ieIreland17phPhilippines4
cnChina676nlNetherlands17cyCyprus3
inIndia263mxMexico16mmMyanmar (Burma)3
ukUnited Kingdom230netNetwork (.net)15usUnited States3
comCommercial (.com)192nzNew Zealand14egEgypt3
krKorea (South)141huHungary14dzAlgeria3
deGermany111czCzech Republic13hrCroatia (Hrvatska)3
caCanada108saSaudi Arabia12etEthiopia2
brBrazil104fiFinland11bgBulgaria2
jpJapan104thThailand11lkSri Lanka2
itItaly93noNorway9lvLatvia2
frFrance86zaSouth Africa9qaQatar2
twTaiwan65arArgentina9suUSSR (former)2
auAustralia63euEuropean Union9omOman2
orgNon-Profit Organization60dkDenmark8uyUruguay2
myMalaysia56joJordan8bdBangladesh2
esSpain49ngNigeria8uaUkraine2
ilIsrael44ruRussia8catCatalonia (Spain)2
plPoland38maMorocco7meMontenegro2
hkHong Kong36atAustria7pePeru1
govUS Government36psPalestine6crCosta Rica1
grGreece36aeUnited Arab Emirates5keKenya1
milUS Military36lbLebanon5ecEcuador1
trTurkey34rsSerbia5bfBurkina Faso1
ptPortugal32clChile5snSenegal1
chSwitzerland30luLuxembourg5kwKuwait1
pkPakistan28tnTunisia5baBosnia and Herzegovina1
seSweden25skSlovak Republic5byBelarus1
sgSingapore25ltLithuania4bhBahrain1
beBelgium22roRomania4mtMalta1
idIndonesia20siSlovenia4eusBasque language1
vnViet Nam18iqIraq4ioBritish Indian Ocean Territory1
coColombia18npNepal4

  Last Modified: Sun Feb-26-2017 00:26:20 PST
  Page URL: http://www.caida.org/data/about/restricted/index.xml