[eigenvector]

Why can't they find them the same way government agencies normally enforce radio licensing? Drive around with a receiver (a cell phone, basically) enumerating all the purported cell towers in a geographic area, then cross-check that with a list of legitimate carrier infrastructure?

[phusion]

It MAY not be that easy... femtocells and whatnot may make that a difficult task. I wondered this myself, since nearly all pirate radio stations are caught.. but cell sites don't work the same way. Just a thought.