\documentclass[12pt,letterpaper]{article}%
\usepackage[margin=1.1in]{geometry}
\usepackage{tikz,everypage}
\AtBeginDocument{%
\AddEverypageHook{%
\small
\begin{tikzpicture}[remember picture,overlay]
\path (current page.north west) -- (current page.south west)
\foreach \i in {1,...,\fakelinenos}
{ node [pos={(\i-.5)/\fakelinenos},
xshift=\fakelinenoshift, line number style] {\i} } ;
\end{tikzpicture}%
}%
}
\begin{document}
\vspace*{20cm}