The town of Aurora in Ontario Canada has just voted to allow the removal of the number 4 from addresses because people of Asian origin claim it brings bad luck. Apparently it sounds like "Death". See the UPI article here.
On the other hand, a city officiel of the city of Palmerston North in New Zealand want to remove the ban on number 13. Apparently the ban is in effect to not allow houses to have 13 as their street address. See the UPI article here.