Please review your contract to determine your terms. If you are at the end of your term, we generally require 30 days written notice. Please send your request to This email address is being protected from spambots. You need JavaScript enabled to view it. (for North America & Asia) or This email address is being protected from spambots. You need JavaScript enabled to view it. (for Europe). All termination requests sent to Cogent or any of its employees must be documented in writing.