Look up the number in a printed phone book directory. Yellowbook offers printed telephone directories for the following regions: Houston Bay Area Regional, Houston Northside, Houston Southwest, Houston Northwest and Houston Southeast/Pasadena.
Search for the number in the yellow or white pages using a general online directory like Superpages.com or HelloHouston.com. These services require you to enter as much information about the person or business that you know, such as the name, ZIP code, business category or address. Type this information into the appropriate fields.
Dial 411 from your telephone and give the operator the name of the Houston residence or business you are trying to reach.