CAIDA Topology Data Request Form

CAIDA makes topology data freely available to academic researchers and US government agencies. Corporate entities (including corporate researchers) receive access through CAIDA's membership program. Information on membership levels, services, and rates can be requested by emailing

If you have questions or problems using this form, please send email to

If your research only requires older than one year IPv4 topology data, or IPv6 data, you do not need to fill out this form. These older IPv4 topology data, and all IPv6 data are available as public datasets. You can obtain access using this form.

If you want access to the most recent one year of raw topology data, please complete and submit the following Topology Data Request Form. It usually takes about two to three business days to process your request. Upon approval, you will receive an email with instructions on how to download your requested data.

Required fields are indicated by an asterisk (*).
* Relationship to CAIDA:    I am an academic researcher / faculty advisor / student
   I am a CAIDA sponsor
   I am a U.S. government contractor
   I am from a U.S. government agency
   I am from a corporate organization
   Other (please specify):
* First (Given) Name: 
* Last (Family) Name: 
* Phone Number: 
* Full name of your Institution/Company: 
* Mailing Address: 
* Your email at this Institution/Company: 
(an academic email address is required for academic researchers/students)
* Position:     Professor/Principal investigator      
   Other (please specify):       
Advisor's Name (required for students): 
URL of your project
(if available): 
* Which datasets are you requesting access to?
( please check the appropriate box(es) )
If you already have a password to access CAIDA's datasets, check the following box to retain the password.
   I already have a password, and would like to keep it.
* Please submit a
detailed 1-2 paragraph description
summarizing your research goals.
How many Phd students will use the data?
(if applicable):
How many Masters students will use the data?
(if applicable):
How many other students will use the data?
(if applicable):
CAIDA makes dataset related announcements,
like the availability of a new datasets, on the
data-announce@caida.orgma ilinglist.
    Sub scribe me to

Acceptable Use Agreement

CAIDA strongly favors wide dissemination of its datasets to legitimate researchers, and CAIDA also takes seriously its obligation to responsibly disclose datasets which may present a risk if misused.

Please read the terms of the CAIDA Master Acceptable Use Agreement below:

*Enter your initials if you have read and agree to the terms set forth above:    

When referencing any of these datasets, the use agreement requires inclusion of the following text:

IPv4 TNT MPLS Topology Dataset - < dates used >,
The CAIDA UCSD IPv4 Routed /24 Topology Dataset - < dates used >,
The CAIDA UCSD IPv4 Routed /24 DNS Names Dataset - < dates used >,
The CAIDA UCSD Macroscopic Internet Topology Data Kit (ITDK) - < dates used >,
Also, please, report your publication to CAIDA.

Related Objects

See,dataset:ark_ipv4_traceroute,dataset:ark_ipv4_dns_names,dataset:ark_itdk to explore related objects to this document in the CAIDA Resource Catalog.
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