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  2. Telephone numbers in Canada - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Canada

    Toll-free and premium numbers. Non-geographic toll-free telephone numbers (800, 833, [ 3] 844, 855, 866, 877, 888) and premium-rate telephone numbers (900) are allocated centrally by the NANP Administrator. Calls to telephone numbers with the central office code 976 are billed as expensive premium calls.

  3. Fictitious telephone number - Wikipedia

    en.wikipedia.org/wiki/Fictitious_telephone_number

    In North America, the area served by the North American Numbering Plan (NANP) system of area codes, fictitious telephone numbers are usually of the form (XXX) 555-xxxx. The use of 555 numbers in fiction, however, led a desire to assign some of them in the real world, and some of them are no longer suitable for use in fiction.

  4. Caller ID spoofing - Wikipedia

    en.wikipedia.org/wiki/Caller_ID_spoofing

    Caller ID spoofing. Caller ID spoofing is a spoofing attack which causes the telephone network's Caller ID to indicate to the receiver of a call that the originator of the call is a station other than the true originating station. This can lead to a display showing a phone number different from that of the telephone from which the call was placed.

  5. Cybersecurity 101: How to protect your cell phone number and ...

    techcrunch.com/2018/12/25/cybersecurity-101...

    What you can do to protect your phone number. Just like you can apply two-factor authentication to your online accounts, you can add a secondary security code to your cell phone account, too. You ...

  6. AI-powered scams and what you can do about them | TechCrunch

    techcrunch.com/2024/06/30/ai-powered-scams-and...

    There are few who can, and certainly not another AI model. Improved as the text may be, this type of scam still has the fundamental challenge of getting you to open sketchy attachments or links ...

  7. List of fake news websites - Wikipedia

    en.wikipedia.org/wiki/List_of_fake_news_websites

    The man behind one of America's biggest 'fake news' websites is a former BBC worker from London whose mother writes many of his stories. Sean Adl-Tabatabai, 35, runs YourNewsWire.com, the source of scores of dubious news stories, including claims that the Queen had threatened to abdicate if the UK voted against Brexit.

  8. A huge database of Facebook users’ phone numbers found online

    techcrunch.com/2019/09/04/facebook-phone-numbers...

    A redacted set of records from the U.K. database. The “44” indicates +44, the U.K.’s country code and the “7” indicates a cell phone number.

  9. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    Worldwide distribution of country calling codes. Regions are coloured by first digit. Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.