Trying to cancel Fax line
I am trying to cancel our Fax number that is owned by Teleport Communications Group, a company under AT&T. AT&T is unable to find this number when I provide them with our account number. There is no contact listed for Teleport Communications Group online, and we pay for our Fax line through AT&T. Who do we contact to cancel our Fax line and how can we get in touch with them?