blocked kitchen sink

[carrieg]

Hello.
I have a blocked kitchen sink and am running out of options.We have used liquid drano and drano max.Also used plumber antifreeze.We have also used a 25 foot snake and still nothing.Our pipes are well insulated and heat taped.I am wondering if it is further down possible frozen.Or maybe the snake just went right through some possible grease blockage.
Does anyone have some ideas on what I could use for grease blockage or ice.Or any other ideas.
Thanks Carrie

[Softus]

How much of the waste pipe can you see?

Also the trap?

Basically, whatever you can see, dismantle it. If it's blocked then don't bother trying to clean it out - just replace it.