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Canadian MIN Block Identifier (MBI)

MBI Assignment Guideline

The current CRTC-approved Canadian MIN Block Identifier (MBI) Assignment Guideline is available from the CRTC website.


MBI Forms

The MBI Request for Assignment, Return or Information Change (Form 1) and the Confirmation of In-Use (Form 3) forms are located in Appendix B of the Canadian MIN Block Identifier (MBI) Assignment Guideline, which is located on the CRTC website.

Those meeting the requirements to submit forms should extract the forms from the guideline for submission to the MBI Administrator and submit them to


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