One reason is cost. The other i think is the number of services. If I recall correctly, some dns services are in us east only only u host it in other region.

One reason is cost. The other i think is the number of services. If I recall correctly, some dns services are in us east only only u host it in other region. https://docs.aws.amazon.com/general/latest/gr/r53.html https://docs.aws.amazon.com/general/latest/gr/r53.html Name registration is in us east only. DNS resolving is in a few specific regions