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What is the difference between a 3-digit ZIP Code and an SCF?

April 26, 2017code scf Zip

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What is the difference between a 3-digit ZIP Code and an SCF?

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An SCF (Sectional Center Facility) is a postal facility that serves as the distribution and processing center for post offices in a designated geographic area, which is defined by the first three digits of the ZIP Code of those offices. This facility may serve more than one 3-digit ZIP Code range. 3-digit codes (ranges of ZIP Codes) refer to the first 3 digits of the 5-digit ZIP Code. For instance, the ZIP Code 38104 has a 3-digit of 381. Any ZIP Code starting with 381 would be grouped into this 3-digit area.