Use the following tips for entering a service address:
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Spell out all abbreviated words (e.g., Saint Louis).
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It is not necessary to use punctuation marks or apostrophes (e.g., O Fallon).
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ZIP Codes should be five digits (e.g., 63116, 63017).
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To help identify the location you are moving into, you can always enter the eight character Ameren meter number if you are not sure of the address or for rural addresses that don’t have conventional street addresses.
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The United States Postal Service provides a helpful website to check service addresses: www.usps.com.