Layer Estimates:

Layer: Cartographic_Boundary_Shapefiles_ZIP_Code_Tabulation_Areas (ID:0)
Count: 33144
Extent:

XMin: -19668455.503743
YMin: -1617130.87275399
XMax: 16233767.3333751
YMax: 11519970.1328022
Spatial Reference: 102100 (3857)