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  2. 30 Scam Phone Numbers To Block and Area Codes To Avoid - AOL

    www.aol.com/finance/19-dangerous-scam-phone...

    Look at the area code: Start by comparing the phone number’s area code to the list of area codes you should never answer. If it’s on the list, there’s a good chance there’s a scammer on ...

  3. Avoid Answering Calls from These Area Codes: Scam Phone ...

    www.aol.com/lifestyle/avoid-answering-calls-area...

    All it takes is a quick glance to know if the call is for real or not. The post Avoid Answering Calls from These Area Codes: Scam Phone Numbers Guide appeared first on Reader's Digest.

  4. This is why you should never call back an unknown number - AOL

    www.aol.com/article/lifestyle/2019/05/03/this-is...

    At the very least, answering the phone or calling back makes you vulnerable to future scams, says Eva Velasquez, CEO and president of Identity Theft Resource Center. “When you call back not only ...

  5. Phone fraud - Wikipedia

    en.wikipedia.org/wiki/Phone_fraud

    Cramming is the addition of charges to a subscriber's telephone bill for services which were neither ordered nor desired by the client, or for fees for calls or services that were not properly disclosed to the client. These charges are often assessed by dishonest third-party suppliers of data and communication service that phone companies are ...

  6. 555 (telephone number) - Wikipedia

    en.wikipedia.org/wiki/555_(telephone_number)

    The 555 exchange is not reserved in area codes used for toll-free phone numbers. This led to the video game The Last of Us accidentally including the number to a phone-sex operator. [9] The number "555-2368" (or 311-555-2368) is a carryover from the "EXchange 2368" ("Exchange CENTral") number common in telephone advertisements as early as the ...

  7. North American Numbering Plan - Wikipedia

    en.wikipedia.org/wiki/North_American_Numbering_Plan

    Area code handbook issued by many telephone companies in 1962 to promote the newly introduced direct distance dialing. From the Bell System's beginnings in 1876 and throughout the first part of the 20th century, telephone networks grew from essentially local or regional telephone systems.

  8. List of North American Numbering Plan area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_North_American...

    Each NPA is identified by one or more numbering plan area codes (NPA codes, or area codes), consisting of three digits that are prefixed to each local telephone number having seven digits. A numbering plan area with multiple area codes is called an overlay. Area codes are also assigned for non-geographic purposes.

  9. Wardialing - Wikipedia

    en.wikipedia.org/wiki/Wardialing

    If a human or answering machine answers, the wardialer program hangs up. Depending on the time of day, wardialing 10,000 numbers in a given area code might annoy dozens or hundreds of people, some who attempt and fail to answer a phone in two rings, and some who succeed, only to hear the wardialing modem's carrier tone and hang up.