The bounds and center coordinates for EPSG:27205 (NZGD49 / Mount Eden Circuit) are different from the bounds from epsg.org (https://epsg.org/crs_27205/NZGD49-Mount-Eden-Circuit.html?sessionkey=onmg7s75za).
epsg.io bounds include whole New Zealand and epsg.org only includes the top area:

Which I think is the correct boundary
The bounds and center coordinates for EPSG:27205 (NZGD49 / Mount Eden Circuit) are different from the bounds from epsg.org (https://epsg.org/crs_27205/NZGD49-Mount-Eden-Circuit.html?sessionkey=onmg7s75za).
epsg.io bounds include whole New Zealand and epsg.org only includes the top area:

Which I think is the correct boundary