CSMC Mortgage-Backed Pass-Through Certificates, Series 2006-1 – ‘15-15D’ on 1/26/07

On:  Friday, 1/26/07, at 11:00am ET   ·   Effective:  1/26/07   ·   Accession #:  1056404-7-761   ·   File #:  333-127872-07

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Notice of Suspension of Duty to File Reports   —   Form 15
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 15-15D      Notice of Suspension of Duty to File Reports           4±    14K 


           UNITED STATES
            SECURITIES AND EXCHANGE COMMISSION
          WASHINGTON, D.C. 20549

             FORM 15

Certification and Notice of Termination of Registration under Section       
12(g) of the Securities Exchange Act of 1934 or Suspension of Duty to       
File Reports under Sections 13 and 15(d) of the Securities Exchange Act     
of 1934.                                                                    

Commission File Number of issuing entity: 333-127872-07                     

CSMC Mortgage-Backed Trust Series 2006-1                                    
(Exact name of issuing entity as specified in its charter)                  

Commission File Number of depositor: 333-127872                             

Credit Suisse First Boston Mortgage Securities Corp.                        
(Exact name of depositor as specified in its charter)                       

DLJ Mortgage Capital, Inc.                                                  
(Exact name of sponsor as specified in its charter)                         

c/o Wells Fargo Bank, N.A.                                              
9062 Old Annapolis Rd.                                                  
Columbia, MD 21045                                                      
(410) 884-2000                                                          

(Address, including zip code, and telephone number, including area code,
of Registrant's principal executive offices)                            

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AR-L                                                                        

(Title of each class of securities covered by this Form)                    

None                                                                    

(Titles of all other classes of securities for which a duty to file         
reports under Section 13(a) or 15(d) remains)                               

Please place an X in the box(es) to designate the appropriate rule          
provision(s) relied upon to terminate or suspend the duty to file reports:  

Rule 12g-4(a)(1)(i)            / /                                      

Rule 12g-4(a)(1)(ii)           / /                                      

Rule 12g-4(a)(2)(i)            / /                                      

Rule 12g-4(a)(2)(ii)           / /                                      

Rule 12h-3(b)(1)(i)            / /                                      

Rule 12h-3(b)(1)(ii)           / /                                      

Rule 12h-3(b)(2)(i)            / /                                      

Rule 12h-3(b)(2)(ii)           / /                                      

Rule 15d-6                     /X/                                      

Approximate number of holders of record as of the certification or notice   
date:                                                                       
Less than 300 Holders                           

Pursuant to the requirements of the Securities Exchange Act of 1934,        

CSMC Mortgage-Backed Trust Series 2006-1                                

has caused this certification/notice to be signed on its behalf by the      
undersigned duly authorized person.                                         

Date: January 26, 2007                                                      
By: /s/ Elisabeth A. Brewster                                               
Elisabeth A. Brewster, Vice President                                       

Instruction: This form is required by Rules 12g-4, 12h-3 and 15d-6 of       
the General Rules and Regulations under the Securities Exchange Act of      
1934. The Registrant shall file with the Commission three copies of         
Form 15, one of which shall be manually signed. It may be signed by an      
officer of the Registrant, by counsel or by any other duly authorized       
person. The name and title of the person signing the form shall be          
typed or printed under the signature.                                       

Dates Referenced Herein

This ‘15-15D’ Filing		Date		Other Filings
Filed on / Effective on:		1/26/07		None on these Dates
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