PRODUCT UPDATE NOTICE

QUARTERLY DATAFILE UPDATE INFORMATION

PRODUCT: ZIP SOURCE (GEOGRAPHIC DATA FILE (GDF))

RELEASE: September 30, 2007

PREVIOUS UPDATE: June 30, 2007

COMMENTS: ZIP SOURCE is provided as a fixed block sequential file. The external tape label will provide specific DCB information. Please utilize

in-house utilities for installation.

UPDATE SUMMARY: The following are estimates of the changes that occurred for this r release.

DISCONTINUED ZIPS: 9

NEW ZIPS: 13

ZIP CHANGES: 15

Area Code Changes – Area Code 630 has been overlaid with a new area code 331. All records with a 630 area code have been updated to reflect a second area code of 331.

MSA Changes from OMB Bulletin – None this quarter

Any change in contact names or addresses for billing or shipment should be forwarded to our Shipping Department at the address shown below.

If you have any questions concerning this product, or this technical bulletin, please call our Product Support Representatives at (708) 220-0158 or email cweinberger@sourcesoft.com

Thank you for using SOURCE SOFTWARE products.

SOURCE SOFTWARE, Inc.

15774 LaGrange Road

#200

Orland Park, IL 60462