Cost assessment charge on my U Verse bill

Well, I only have 3 business land lines and my description states:

"AT&T charges you this monthly per line amount to recover its ongoing costs incurred for property taxes and supporting the administration of local number portability, a government program that enables customers to retain their telephone number when changing service providers. This fee is not a tax or charge that the government requires AT&T to collect from its customers."

Why is my wording different than everyone else's? My $7.83/mn fee seems a bit high. That's almost $100/yr.