Here's how to find current bond prices, specific securities available (including corporates, sovereigns, municipals and more), coupon rates, CUSIPs, upgrades and downgrades and more.
Mergent Annual Bond Record (print): Corporate, Municipals, government plus exhaustive entries for these categories. Moody's ratings, bond coupon rate, CUSIPs, ratings up and downgrades,
Mergent Bond Record (print/recent): Corporate (including international), Government, Convertibles, Features Moody's ratings, when issued, amount outstanding, currency, etc.
Mergent Manuals (electronic resource - industrials, municipals, utilities and more) should have complete issuance up to the date, plus 52 week high and low for those.
Standard and Poor's Netvantage (electronic): Features a corporate bond screener. Search by parameters if desired or by issuer/CUSIP. Current trading price, yield, etc.
PLUS DON'T MISS:
The Bloomberg Terminal in 4th floor Alkek Computer Lab. Features current trading conditions on any security you could want.
You could also search back issues of the Wall Street Journal. You can oftentimes find the original issuance announcement as well as other information.