1)   US ZIP Code Database Mixed Case Edition August.2008
ZIPCodeWorld United States Gold Edition with Mixed Case City Name ZIP Codes Database includes 5-Digit ZIP code, city name, alias name, state code, county name, FIPS, time zone, latitude, elevation, MSA, PMSA and Census 2000 data.

 2)   Canadian Postal Code Mixed Case Database August.2008
The Canadian postal codes database includes postal code, uppercase and mixed case city name, province name, area code, timezone, elevation, population, latitude, longitude and street name in Canada with over 760,000 precise records.