As far as my research shows, Ecuador does have an extradition treaty with the US. There is a link to a PDF describing that treaty in the related links.
Yes - but the treaty dates back to 1905 and it does not appear that Nicaragua has a mutal assistance treaty of any kind with the U.S.
Yes, the UK maintains an extradition treaty with Ecuador.
Every country has no extradition treaties with the.
It appears no. Extradition treaties with Brazil:https://www.loc.gov/law/help/extradition-of-citizens/chart.php
yes.......
Ukraine
Australia
Australia
Canada
India maintains extradition treaties with about 30 other countries.
Maybe IRAN!!
Taiwan.
I think most developed countries have treaties setup with all other countries. These treaties can be for business, bilateral ties, criminal extradition etc.
Navada and Colorado are both states, therefore, they do not have treaties with one another. Countries have treaties. All states within the US are subject to extradition within the US.