Called yesterday around noon. CID was Unassigned. Called the number late last night and reached Diversified Consultants ---one of the worst debt collectors out there! Doesn't matter if it's your debt or not.
Today at noon, 559-558-5690 called with CID Unassigned. Called back and again reached Diversified Consultants. I believe all 559-558-xxxx numbers are DCI. I blocked the whole range.

http://www.dcicollect.com/
Diversified Consultants, Inc.
PO Box 551268
Jacksonville, FL 32255
(800) 771-5361
A lot of complaints about this group.
__________________________
Per records of the Secretary of State of Florida
Florida Profit Corporation
DIVERSIFIED CONSULTANTS, INC.
Filing Information
Document Number:  P93000010583
FEI/EIN Number:  593162615
Date Filed:  02/04/1993
State:  FL
Status:  ACTIVE
Last Event:  AMENDMENT
Event Date Filed:  1/16/2009
Event Effective Date:   NONE
Principal Address:
10550 DEERWOOD PK BLVD
SUITE 309
JACKSONVILLE, FL 32256

Much better to do the following using the information CWG40 has posted.

You need to send them a certified, return receipt debt validation, cease and desist calling, or "not me" letter.  You also need to report them to the proper agencies to which I have provided links to.  Then you need to go out and get a consumer lawyer to sue them on a contingency basis (no money out of your pocket) and let them pay you for the harassment.  If everyone did these three things, these crooks would be bankrupt and we would all be the richer for it.

Read up on your rights here, get template letters to send and also make a complaint at this government site: http://www.consumerfinance.gov/

Also file a complaint with your State Attorney General's office.
List of State AG’s offices:  http://consumerfraudreporting.org/stateattorneygenerallist.php

Also file a complaint with the Florida AG’s Office:  http://myfloridalegal.com/
And the Florida Dept. of Financial Regulation:  http://www.flofr.com/StaticPages/FileAComplaint.htm