http://www.htta.net/table-tennis-tables-butterfly/

Need help with a riddle!?
this puzzle makes up a 16 digit code like this xxxx-xxxx-xxxx-xxxx….. if i could get some help filling in the numbers
Fly like a butterfly, sting like a bee, play table tennis with a great paddle like me
Four consecutive digits counting down
The total number of miles that make up the Texas border
The last four digits you will call if you want a 60 hour threading course
7460-6789-1969-5960!!!.
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Butterfly Ping Pong Tables