"I assume that the newer 832 area code is more sparsely assigned, and thus has fewer wrong numbers."

It was my understanding that 832 numbers were for cell phones only, but I could be wrong about this. Though I know lots of people with 281 and 713 numbers, I only know one with an 832, and it's a cell.
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-Jeff
Rome did not create a great empire by having meetings; they did it by killing all those who opposed them.