AtBeginDocument{hypersetup{pageanchor=false}
letoldrefref
renewcommand{ref}[1]{{oldref{#1}typeout{RefsPagesInLog --> {#1} thepage}}}

RefsPagesInLog --> {fig:2} 29

ref@page{<key>}{<page>}

ref@page{somefigure}{4}

documentclass{article}

usepackage{blindtext}

usepackage{etoolbox}
usepackage{hyperref}

makeatletter
AtBeginDocument{%
  renewcommand{NR@setref}[1]{%
    ref@page@write{#1}%
    begingroup@safe@activestrueexpandafterendgroup
    expandafterNR@@setrefcsname r@#1endcsname
  }%
}
newcommand{ref@page@write}[1]{%
  protected@write@auxout{}{stringref@page{#1}{thepage}}%
}
newcommand{ref@page}[2]{}
makeatother

begin{document}

blindtext[10]

clearpage

ref{somefigure}

section{First section}label{firstsec}

blindtext[50]


begin{figure}
  caption{Some figure}label{somefigure}
end{figure}

blindtext[50]

section{Second section}label{secondsec}

end{document}

documentclass{article}

usepackage{etoolbox}
usepackage{hyperref}

newcounter{refusage}

AtBeginDocument{hypersetup{pageanchor=false}
letoldrefref
renewcommand{ref}[1]{{refstepcounter{refusage}label{refusage:therefusage}oldref{#1}typeout{RefsPagesInLog --> {#1} getpagerefnumber{refusage:therefusage}}}}
robustifyref
}

usepackage{blindtext}

begin{document}

blindtext[10]

clearpage

ref{somefigure}

section{First section}label{firstsec}

blindtext[50]


begin{figure}
  caption{Some figure}label{somefigure}
end{figure}

blindtext[50]


section{Second section}label{secondsec}




end{document}