The call came out as a structure fire a little before 5 am March 18, 2022 in our first due. With the possibility of a two year old still entrapped. The structure was an apartment building in a complex that has a garden style lay out. The building was a 2 story with a subdivision floor. That has a total of 12 apartments inside the building. Dispatch gave us the wrong apartment number as apt 6 not 56. We had nothing showing but had residents outside. I was met by the mother and father saying their “baby” was still inside. I asked location and if the child was in a crib,bed, or what. Myself and my lieutenant made entry without a hose line and did a split search of the fire room. Conditions were floor to ceiling smoke with zero visibility, no fire at the time of entry. The two year old was located unresponsive but breathing, through smoke and clutter within 1-2 ish minutes. Time of dispatch to child being in EMS care was around eight minutes.