Countries - ISO-639, ISO-3166 countries codes with subdivisions and names, ISO-4217 currency designators, ITU-T E.164 IDD phone codes, countries capitals, UN M.49 codes, IANA ccTLD countries domains, FIPS, IOC/NOC and FIFA codes, VERY VERY FAST, compatible with Databases/JSON/BSON/GOB/XML/CSV, Emoji countries flags and currencies, Unicode CLDR.
https://en.wikipedia.org/wiki/ISO_3166-2:BD & https://en.wikipedia.org/wiki/Mymensingh_Division
The new division was established in 2015.
Happy to PR :)