Azure Inter Region Latency

Azure supports 24 regions for its cloud services. Understanding latency between the regions is important as performance starts to have noticeable degradation when the latency is more than 150 - 200ms between a client and server or between two servers in two different regions.

Below is our measurement of some of the Azure inter region latencies measured in milliseconds. The measurement is done by taking an average to multiple pings. The accuracy is +/- 1ms.

arm_inter_region_latency