5/24/22, 7:45 PM Myanmar: Data on internet blocks and internet outages following military coup | OONI Source: Internet Outage Detection and Analysis (IODA), IODA Signals for Myanmar, https://ioda.caida.org/ioda/dashboard#view=inspect&entity=country/MM&lastView=overview&from=1612051200& IODA provides data at network-level granularity (in addition to country-level and region-level), enabling us to examine which networks were affected and to what extent. Analyzing networklevel data also allows us to uncover outage timing patterns and differences. This was the first major Internet outage that occurred amid the coup; for this particular outage, we observed significant differences in the extent to which various networks were affected and we also observed timing differences. Some networks experienced almost complete loss of Internet connectivity while others appear to have experienced only small outages. For networks that did experience an outage, there were still timing differences: in some, the outage began at 21:00 (UTC) on 31st January 2021, while on other networks, the outage began only after midnight on 1st February 2021. The graphs below highlight these differences. Source: Internet Outage Detection and Analysis (IODA), Active Probing and BGP Signals for MPT (AS9988) and Mytel (AS136255). These networks observe steep drops in the BGP signal just after midnight (UTC) on 1st February 2021. https://ioda.caida.org/ioda/dashboard#view=inspect&entity=asn/9988&lastView=overview&from=1612051200&unti https://ioda.caida.org/ioda/dashboard#view=inspect&entity=asn/136255&lastView=overview&from=1612051200&un Source: Internet Outage Detection and Analysis (IODA), Active Probing and BGP Signals for Ooredoo (AS132167) and Telenor (AS133385). These networks first observe drops in the signals at ~ 21:00 (UTC) on 31st January 2021. The signals drop further after midnight (UTC) on 1st February 2021. https://ioda.caida.org/ioda/dashboard#view=inspect&entity=asn/132167&lastView=overview&from=1612051200&un https://ioda.caida.org/ioda/dashboard#view=inspect&entity=asn/133385&lastView=overview&from=1612051200&un https://ooni.org/post/2021-myanmar-internet-blocks-and-outages/ 11/16