said by PastTense:
But what percentage of landlines are overhead anymore? Even in my small rural location they have buried the cables.
Around here, a ton. Residetial neighborhoods built in the last 35 years or so are mostly underground. But between those and what is considered "downtown" in my city, it's mostly aerial still. Out in the country, unless a developer has created a neighborhood and buried the line, most country houses on rural roads are also aerial. And regardless of age, many of the trunk lines are still aerial.