Spoofing is a funny sounding word, but there is nothing funny about spoofing, which is the name for the scam tactic used by scammers by which they are able to manipulate your caller ID such that when you receive a call, it appears to come from a legitimate company, governmental agency, such as the IRS, or even your own telephone number.
According to the Federal Trade Commission (FTC) scammers have spoofed the telephone number of its Consumer Response Center to contact people asking for personal information or a payment.  This telephone number 877-382-4357 is the telephone number consumers can call to report a scam.  It is not, however, used by the FTC to call consumers so if you get a call from this number, you should not trust the caller.  It is also important to remember that the FTC will never ever ask you for money or personal information such as your Social Security number or bank account information.
There are some basic precepts to remember to help protect you from being scammed by spoofed calls.  Remember that your caller ID is not fool proof.  You cannot trust your caller ID to accurately inform you as to who is really calling you.  You should never provide personal information to anyone over the phone whom you have not called.  If you ever receive a call requesting personal information and you think it might possibly be legitimate, merely hang up and call the entity back at a number that you know is accurate and even then do not provide personal information unless there is a real need for it.
It is important to note that although the telephone number 877-382-4357 has been spoofed by scammers, it is still safe to call that number to report a scam to the FTC.