AZ tokens are locked till the end of ICO (31.03.2019) no matter you have bought them or received by airdrop. As you mentioned the airdrop tokens came from this contract address - https://etherscan.io/address/0xaaaaa798ebb90066788951e0fc03bc71e6bc2b51. It's our airdrop address and it is used only for airdrop distribution. You can click "Read Contract" button there and you will see that AzbitToken address is 0x77fe30b2cf39245267c0a5084b66a560f1cf9e1f.