UK & Ireland: Yes, and still do, although it's apparently a corruption of "hatch" (as in cross-hatch). http://en.wikipedia.org/wiki/Number_sign#Usage_in_the_Un

UK & Ireland: Yes, and still do, although it's apparently a corruption of "hatch" (as in cross-hatch). http://en.wikipedia.org/wiki/Number_sign#Usage_in_the_United_Kingdom_and_Ireland http://en.wikipedia.org/wiki/Number_sign#Usage_in_the_United...