Yes, you should always put your most critical contact information first so a finder can see it at a glance.Your cat's name, and your primary phone number. If there's room on the tag include a alternate phone number, and if your cat is microchipped just write out "Microchipped". I bought this collar, it's reflective break-away cat collar and has a QR code on the collar's clip that can be scanned by any phone, and leads to all your cat's contact info. No app is needed, no batteries and no extra cost, just scan the code and use it. https://www.walmart.com/ip/Smart-QR-Code-Pet-ID-Personalized-Tag-Cat-Collar-Reflective-Nylon-with-Bell-Secure-Breakaway-Comfortable-Durable-Suitable-for-Adult-Cats-Rose/16437622133?wmlspartner=wlpa&selectedSellerId=101663084&selectedOfferId=559C570633013918A4E789BC4E61CAAB&conditionGroupCode=1&sourceid=dsn_gdn_0c92c416-dbd6-42ec-845c-ecf69af2153d&veh=dsn&wmlspartner=dsn_gdn_0c92c416-dbd6-42ec-845c-ecf69af2153d&cn=0042_fy27_mp_mpa_lo_int_dis_pmax-p13n&wl9=pla&wl11=online&gad_source=1&gad_campaignid=23148469844&gclid=Cj0KCQjwr4jSBhCSARIsAOX1E-Jqmt_gkdfnq6MvVPkHtykeMMd0z0USupYyPR_EWFNNHJAm-ATf1NgaAsFvEALw_wcB
