This regional registry for Europe, former Soviet republics (including Russia), the Middle East, and Central Asia offers information on the allocation of IPv4 (https://www.ripe.net/publications/ipv6-info-centre/about-ipv6/ipv4-exhau...) and IPv6 addresses.
Sam Knows measures broadband quality: download speed, upload speed, latency, packet loss. It has worked with the FCC on the Measuring Broadband America initiative, and with other regulators across the world: UK’s Ofcom, the European Comission, Brazil’s Anatel, and Singapore’s IDA. The reports can be found here and data from the US and UK can downloaded here.
This source provides rankings of websites and applications across the world and across different categories. It also offers detailed profiles of specific websites: number of visits, engagement, geographic distribution of users, traffic sources, etc. The data seems to be a combination of panel and ISP information.
The Social Media Exchange's Arab Digital Rights Dataset is a database of laws and other legal instruments in the Arab world that have been applied or could potentially be applied to restrict digital rights. The datasets include:
By using a “tracking through portal” method, this joint industry committee provides monthly data on the number and profile of users of about 450 Dutch sites.