The data is complied from printed telephone directories which are usually updated annually. Coverage includes the current white page listings as compiled from U.S. directories. The quarterly updates provide new and updated listings for approximately 25 percent of the file. This database contains 40 million white page directory listings. The data is complied from printed telephone directories which are usually updated annually.
Coverage includes the current white page listings as compiled from U.S. directories.
The quarterly updates provide new and updated listings for approximately 25 percent of the file. The guides are evaluated in five levels of criteria for levels of resource description, resource evaluation, design, organizational schemes and meta-information. Associations Unlimited Contains detailed listings for 23,000 nonprofit organizations in the United States usually including such contact information as phone and fax numbers and electronic and postal addresses. A toll-free directory with over 150,000 businesses and organizations. It is updated twice monthly to keeps its information as current as possible.