EXHIBIT 32.1

CERTIFICATION

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, each of the undersigned officers of ProLogis (the “Company”), hereby certifies, to such officer’s knowledge, that the Company’s Annual Report on Form 10-K for the annual period ended December 31, 2009 (the “Report”), which accompanies these certifications, fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934, as amended and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: February 26, 2010	By: /s/  WALTER C. RAKOWICH   Name: Walter C. Rakowich   Title: Chief Executive Officer
Dated: February 26, 2010	By: /s/  WILLIAM E. SULLIVAN   Name: William E. Sullivan   Title: Chief Financial Officer