Can I change my incoming fax number? iFax Support December 28, 2017 10:15 Follow Currently, we do not provide an option to modify a fax number. - iFax Related articles How can I receive faxes? Do I need an incoming fax number subscription to send faxes? How can I receive my faxes as a PDF email attachment? How do I cancel an auto-renewal subscription? How do I make sure that my fax is delivered successfully? Comments 0 comments Please sign in to leave a comment.