Tons of 4 letter number names cant be claimed

all of these names cant be claimed on Minecraft even though they are available and not used by anyone

5508, 5506, 5507, 5516, 5575, 5616, 5628, 5662, 5686, 5732, 5763, 5857, 5863, 5895, 5993, 5981, 6027, 6052, 6095, 6167, 6150, 6183, 6309, 6307, 6332, 6385, 6406, 6418, 6508, 6602, 6647, 6653, 6635, 6680, 6817, 6879, 6892, 6925, 6946, 6976, 7039, 7035, 7065, 7086, 7114, 7125, 7097, 7130, 7138, 7119, 7147, 7273, 7280, 7303,