It's infrequent, but I've seen other reports of junk debt collectors working accounts dating to the Reagan administration. Only two states have a Staute of Repose which would render the activity illegal. In theory, absent a court discharge, you could get a perfectly legal skip trace call regarding the defaulted loan on your great-grampy's Lincoln Roadster.
A state Statute of Limitations provides an easy affirmative defense if a person is sued for sufficiently aged debt. The mere threat of that suit from a collector becomes an FDCPA violation.
Palisades is the correct spelling of this collection front end of debt buyer Asta Funding.
Learn how to exercise your FDCPA rights as an alleged debtor at FTC-dot-gov. See also if your state laws are stronger.
http://www.ftc.gov/os/statutes/fdcpajump.shtm
M and King: The collector reps cannot legally discuss an account with anyone but the alleged debtor or his attorney. If the target is you, reciting your SSN does not reveal anything the agency does not already possess. If SSN is refused, many times a rep will try matching you by address or birthdate. You are of course not required to trust the rep or cooperate on the phone.