ZIP codes are strictly 5 digits long . A 6-digit number like 156554 will almost always return an invalid error on shipping or banking sites.
Here is the truth about this elusive number and how to find the real code you’re looking for. Is 156554 a Real Postal Code? 156554 zip
You might be looking for 15655 (a 5-digit US ZIP) or a similar 6-digit PIN like 476554 (Morena, Madhya Pradesh) or 577554 (Chitradurga, Karnataka). ZIP codes are strictly 5 digits long
While "156554" is often searched for in the context of ZIP codes or PIN codes, there is that matches 156554 exactly. Madhya Pradesh) or 577554 (Chitradurga