Facebook hesab?na giri? yaparken kullan?c? ad? ve ?ifrenin yan? s?ra iki advertisement?ml? kimlik do?rulama gibi ekstra bir güvenlik advert?m? da kullan?labilir.The letters C, I, K, M, O and V aren't authorized from the inward code. Besides the inward and outward code, the postcode could be broken up into 4 areas:??????????????????????????????????