CUSIP Global Services

The CUSIP Service Bureau, which is operated by Standard & Poor's for the American Bankers Association, exists for the primary purpose of uniquely identifying issuers and issues of financial instruments within a standard framework, and disseminating this data to the financial marketplace via various media. The CUSIP Master Files provide CUSIP numbers, standardized descriptions and additional data attributes for over 5 million corporate, municipal and government securities offered in North America.

CUSIP numbers and standardized descriptions are used by virtually all sectors of the financial industry, and are critical for the accurate and efficient clearance and settlement of securities and other financial instruments as well as back-office processing. The CUSIP number consists of nine characters: a base number of six characters known as the issuer number, (the 4th, 5th and/or 6th position may be alpha or numeric) and a two character suffix (either numeric or alphabetic or both) known as the issue number. The ninth character is a check digit.

Note: The CUSIP Service Bureau seeks to assign unique numbers and standardized descriptions in a timely and accurate manner, using its best efforts to use primary or reliable sources of information. However, because of the possibility of human or mechanical error by issuers and borrowers, CUSIP's sources, Standard & Poor's or others, neither Standard & Poor's nor the American Bankers Association guarantees the accuracy, adequacy or completeness of any information, and Standard & Poor's and the American Bankers Association are not responsible for any errors or omissions or for the results obtained from use of such information.

As of February 2014, the ISSUE and ISSUE_ATTRIBUTES files have been merged into one data set, and are both available via the "Issue" web query. The ISSUER and ISSUER_ATTRIBUTES files were similarly merged.

FOR LICENSING INFORMATION, please contact:
CGS_License@cusip.com

Query Forms

CUSIP Master File

Products

Product Description

Data Last Updated

cusip_all CUSIP Master

Legacy data is no longer updated.

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