There are 26798 records in our business mailing list for SIC code 431: United States Postal Service.
Click on an SIC code to view counts and sub-categories, search for a code or keyword using the text boxes below, or browse an alphabetical list of SIC codes.
We also provide NAICS mailing lists.
| SIC Code | Description | Count |
|---|---|---|
| SIC 431 | United States Postal Service | 26,798 |
| SIC 4311 | U.s. Postal Service | 26,798 |
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