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Center for Applied Internet Data Analysis > data : active : ipv4_prefix_probing_dataset.xml
IPv4 Prefix-Probing Dataset
The IPv4 Prefix-Probing dataset consists of daily traceroutes to every announced BGP prefix (around 609k as of Jan 2016) from a subset of Ark monitors. Each monitor probes the entire set of targets independently, and each monitor completes exactly one pass of the target set every calendar day (aligned on UTC boundaries).

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IPv4 Prefix-Probing Dataset

These datasets result from CAIDA's traceroute-based measurements running on the Archipelago (Ark) measurement infrastructure (also see CAIDA's Macroscopic Topology Project).

We use BGPStream to gather announced BGP prefixes from RIPE and RouteViews BGP data. Each day, we derive a new set of announced prefixes using a sliding window of 7 days of BGP data (7 days of data ending on the day on which a daily BGP prefix set is generated). For each announced prefix, we generate a single target address, ensuring there is never more than one target address in any prefix despite the presence of overlapping prefixes (that is, more specific prefixes).

Data availability

Data older then approximately two years are available as a public dataset. The most recent two years are subject to restricted access. The earliest data are from December 2015, so the first public data will become available after December 2017.

Acceptable Use Agreement for the restricted data

Access to these data is subject to the terms of the following CAIDA Acceptable Use Agreement (printable version in PDF format)

When referencing this data (as required by the AUA), please use:

The CAIDA UCSD IPv4 Prefix-Probing Dataset - <dates used>,
Also, please, report your publication to CAIDA.

Request Data Access

  • Request Access to the restricted CAIDA IPv4 Prefix Probing Dataset (and other topology data)

Topology Datasets


For more information on CAIDA topology measurements, see:

For more information on topology measurements in general see:

  Last Modified: Fri Jun-17-2016 13:21:21 PDT
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