Is it permissible to perform the Athan and Iqama without Wudu'?

The Adhan and Iqamah are valid without ritual purity, though it is better for the Muezzin and the one performing the Iqamah to be in a state of purity. The prayer is valid even if the Muezzin and the one performing the Iqamah are not ritually pure, but they are obligated to repeat their prayers, like anyone else, if they prayed without ritual purity.