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ESN Conversion
Today, our Sprint Liaison passed a spreadsheet with 100+ decimal ESN numbers matched to our phone numbers. Our cards report ESN numbers in Hex. Turns out there’s a smidgen of knowledge needed to switching between the two.
Then you get something like this.
perl -nE 'say hex( substr($_, 0, 2) ) . hex( substr($_, 2) );'
perl -nE 'say uc(sprintf("%x%x", substr($_, 0, 3), substr($_, 3 ) ));'
Happy Coding.
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