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  2. Postal address verification - Wikipedia

    en.wikipedia.org/wiki/Postal_address_verification

    Postal address verification (also known as address, address validation, address verification and CASS certification [1]) is the process used to check the validity and deliverability of a physical mailing address. According to the United States Postal Service, an address is valid (or mailable) if it is CASS-certified, meaning that it exists ...

  3. List of the most common U.S. place names - Wikipedia

    en.wikipedia.org/wiki/List_of_the_most_common_U...

    Washington, in the Pacific Northwest, was the 42nd state admitted to the union.; Thirty-one of the 50 United States are home to a Washington County.; There are more than 200 Washington Townships in the United States, including five (plus one Washington Borough) in the state of New Jersey.

  4. Locatable Address Conversion System - Wikipedia

    en.wikipedia.org/wiki/Locatable_Address...

    Locatable Address Conversion System (LACS) is a service offered by the United States Postal Service to update mailing addresses when a street is renamed or the address is updated for 911. In the case of 911, the address is changed from a rural route format to an urban/city route format.

  5. Address munging - Wikipedia

    en.wikipedia.org/wiki/Address_munging

    Address munging is the practice of disguising an e-mail address to prevent it from being automatically collected by unsolicited bulk e-mail providers. [1] Address munging is intended to disguise an e-mail address in a way that prevents computer software from seeing the real address, or even any address at all, but still allows a human reader to reconstruct the original and contact the author ...

  6. Why did I receive an email from MAILER-DAEMON? - AOL Help

    help.aol.com/articles/what-is-a-mailer-daemon...

    The most common reason for a failed delivery is that the email address entered isn't valid. If the delivery failure message says the account doesn't exist double check the spelling of the address you entered. A single misplaced letter could cause a delivery failure.

  7. Unique local address - Wikipedia

    en.wikipedia.org/wiki/Unique_local_address

    A unique local address (ULA) is an Internet Protocol version 6 (IPv6) address in the address range fc00:: / 7. [1] These addresses are non-globally reachable [ 2 ] (routable only within the scope of private networks, but not the global IPv6 Internet).

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  9. List of countries by IPv4 address allocation - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_IPv4...

    This is a list of countries by IPv4 address allocation. The Internet Assigned Numbers Authority (IANA) distributes large blocks of addresses to regional Internet registries (RIRs), which then assign them to national Internet registries and local Internet registries within their respective service regions. [ 1 ]