5/24/22, 7:45 PM Myanmar: Data on internet blocks and internet outages following military coup | OONI Source: OONI measurements collected from Myanmar between 1st February 2021 to 25th February 2021, https://explorer.ooni.org/search?since=2021-0201&probe_cc=MM&until=2021-0228&test_name=web_connectivity&domain=coronavirus.app While coronavirus.app is accessible on many networks in Myanmar, OONI data shows that it is blocked on at least 3 networks (AS136255, AS58952, AS18399) where we were able to automatically confirm blocking. On these networks, we observe DNS based interference, returning an IP address (59.153.90.11) that hosts a block page or an address in private IP space (127.0.0.1). Note: While some of these measurements include an error annotation in the OONI Explorer measurement headers, that is due to the fact that the blockpage server was not reachable in the moment that the test was performed (possibly because the blockpage server was offline). We are nonetheless able to fingerprint the blocking because these IP addresses (59.153.90.11, 167.172.4.60) used to host block pages, as documented in our previous study last year. The return of an IP address in private IP space (such as 127.0.0.1 or 172.29.8.1) is consistent with the blocking pattern we observed for other websites. Internet outages Since the military coup on 1st February 2021, Myanmar has experienced multiple significant internet outages. These outages are visible through several public data sources: Internet Outage Detection and Analysis (IODA), Oracle’s Internet Intelligence Map, and Google traffic data. The Internet Outage Detection and Analysis (IODA) project of the Center for Applied Internet Data Analysis (CAIDA) measures internet outages worldwide in near real-time. To track and identify internet outages, IODA uses three complementary measurement and inference methods: Routing (BGP) announcements, Active Probing, and Internet Background Radiation (IBR) traffic. Access to IODA measurements is openly available through their Dashboard, which enables users to explore internet outages with country, region, and AS level of granularity. Outage on 1st February 2021 IODA detected an initial drop in connectivity at around 21:00 UTC on 31st January 2021, followed by a larger drop at around 00:20 UTC on 1st February 2021, as illustrated below. Both of these drops are visible in IODA’s Active Probing and BGP signals. https://ooni.org/post/2021-myanmar-internet-blocks-and-outages/ 10/16