You can't because it is too new to get any codes. Sorry.
yes and no?
Treyarch has not sent out a beta for black ops so there are no beta codes
As of November 2014, there does not seem to be any Crew beta codes.
You could have gotten the friends and family BETA codes from Bungie or many various websites, but now there is no way to... sorry.
the beta's been over for 4 months dude
There is no beta and there won't be.
There is a beta vest for the LBPK beta. Codes for the vests were sent via PSN to all who participated.
Yes, all Habbo Beta Codes are free. You just ask your friends to give them to you. If they try selling them, report them.
There is no beta...
Can't get em anymore... BETA's closed
codes
a clone wars adventures beta codes are code you can enter to get stuf