the internet code for Saint Martin is - ".mf".
Information about .mf domains
The Intended use for .mf domains is for entities connected with Saint Martin.
Actual use: Not available for use.
The .mf internet code was Introduced in 2007.
The Sponsoring Organisation for .mf domains is "Not assigned".
Structure of .mf ccTLD: Registrations are made directly at second level, or at third level beneath several second-level names=.com.lc, .org.lc, .net.lc, .L.LC, .P.LC, .edu.lc, .gov.lc.
Registration restrictions of .mf domain: Not available for registration.
Registration details for domain name with suffix .mf - See link
You can see more details about the .mf ccTLD in Wikipedia - See link
SOURCES OF INFORMATION
Domain Count Statistics for TLDs - See link