Yes. The network needs of course to map tokens back to PANs (Primary Account Numbers). Tokens are included in authorization requests to issuing banks, in additi

Yes. The network needs of course to map tokens back to PANs (Primary Account Numbers). Tokens are included in authorization requests to issuing banks, in addition to the actual payment details. Also, both issuers and networks need to be able to suspend and unlink tokens in case of fraud or if the end user loses their device, which implies that they know individual device tokens.