Phone Number Lookups
ReferenceUSA
Database for both business and residential data
Thomas Register
Directory of manufacturers.
Switchboard
http://www.switchboard.com
Big Yellow
http://www.bigyellow.com/
Online Yellow Pages
Zip Codes
http://www.usps.com/ncsc/ziplookup/
lookupmenu.htm
State of New Mexico Government Information Telephone Directory
http://www.phonebook.state.nm.us/
Anywho
http://www.anywho.com
Includes Toll Free Numbers
AllAreaCodes
http://www.allareacodes.com/
Area Code Look-Up
Navajo Nation Directory (Tribal Government)
http://www.navajo.org/govt.htm