Estonia, along with a small handful of other countries, requires an LOI (Letter of intent) for us to provide service.
Here is a sample LOI (letter of intent) estoniaform.pdf (18.8 KB) you can use
We also added 5 new prefixes/area codes in Estonia - National
The number can only be registered under a company - this is a rare requirement and only applies to the following other countries: (the local area codes - not toll-free)