“This public dataset contains all IPv4 measurements from Archipelago (Ark) that are older than approximately one year, and all IPv6 measurements (upto the present).”

• Source
• The CAIDA UCSD IPv4 Routed /24 Topology Dataset
• The CAIDA UCSD IPv6 Topology Dataset
• Data URL, IPv4
• Data URL, IPv4
• Data URL, IPv6
• Acceptable Use Agreement

“RIPE Atlas measurement data is always available via the API, but many distinct measurements run every single day and aggregating the results manually can be a pain. We collect a rich set of measurement data and, as good citizens, we don’t want to generate more measurement traffic than is necessary. It’s important that we make this data as easy to retrieve as possible.

And you all want a ton of data, right? Right.

Last year, we prototyped a service to expose this data for around one month from the day of collection. The feedback has all been positive, so we’ve worked on making it more permanent.”

• Source
• Data URL
• Terms of Service
• Note: postings disappear after 30 days