
President
Section 906 Certification under Sarbanes Oxley Act
I, Vincent J. Esposito, certify that:
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1. |
I have reviewed this report, filed on behalf of Montgomery Street Income Securities, on Form N-CSR; |
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2. |
Based on my knowledge and pursuant to 18 U.S.C. § 1350, the periodic report on Form N-CSR (the “Report”) fully complies with the requirements of § 13 (a) or §15 (d), as applicable, of the Securities Exchange Act of 1934 and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. |
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March 2, 2006 |
/s/Vincent J. Esposito |
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Vincent J. Esposito |
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President |
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Montgomery Street Income Securities |

Chief Financial Officer and Treasurer
Section 906 Certification under Sarbanes Oxley Act
I, Paul Schubert, certify that:
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1. |
I have reviewed this report, filed on behalf of Montgomery Street Income Securities, on Form N-CSR; |
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2. |
Based on my knowledge and pursuant to 18 U.S.C. § 1350, the periodic report on Form N-CSR (the “Report”) fully complies with the requirements of § 13 (a) or § 15 (d), as applicable, of the Securities Exchange Act of 1934 and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. |
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March 2, 2006 |
/s/Paul Schubert |
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Paul Schubert |
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Chief Financial Officer and Treasurer |
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Montgomery Street Income Securities |