.af is the TLD for Afghanistan and is regulated by ISSD.
Registration details can be found in the TLD reference chart.
After registration the registry will send an email to the domain holder for verification purposes. The subject line of the email resembles:
Activation Required | XXXXXX.af
The body of the email resembles:
Afghanistan ccTLD Network Information Center ( af NIC )
You are receiving this email because you are listed as the registrant contact for a new .af domain name (XXXXXX.af).
As the listed registrant you are the individual ultimately responsible for ensuring compliance with the .af policy.
One of the responsibilities you have as a domain name registrant is to ensure the contact information in your domain name record is kept up to date. If you need to make changes to your information, please contact your registrar.
If verification is not completed the domain will be suspended.