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  2. Illegal number - Wikipedia

    en.wikipedia.org/wiki/Illegal_number

    An illegal prime is an illegal number which is also prime.One of the earliest illegal prime numbers was generated in March 2001 by Phil Carmody.Its binary representation corresponds to a compressed version of the C source code of a computer program implementing the DeCSS decryption algorithm, which can be used by a computer to circumvent a DVD's copy protection.

  3. National Do Not Call Registry - Wikipedia

    en.wikipedia.org/wiki/National_Do_Not_Call_Registry

    The Federal Trade Commission (FTC) opened the National Do Not Call Registry in order to comply with the Do-Not-Call Implementation Act of 2003 (Pub. L. 108–10 (text), was H.R. 395, and codified at 15 U.S.C. § 6101 et seq.), sponsored by Representatives Billy Tauzin and John Dingell and signed into law by President George W. Bush on March 11 ...

  4. Do not call list - Wikipedia

    en.wikipedia.org/wiki/Do_not_call_list

    A do not call list or do not call registry is a list of personal phone numbers that are off-limits to telemarketers in some countries. Do not call lists may also be held privately by a company, listing numbers that they will not call.

  5. 30 Scam Phone Numbers To Block and Area Codes To Avoid - AOL

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

    What phone number can I call to report a spam call? You can call 888-382-1222 or visit DoNotCall.gov to report spam calls, telemarketers or robo-callers. Are 877 numbers spam?

  6. Need to Make a Private Call? Here's How to Block Your Number

    www.aol.com/private-call-heres-block-number...

    There are multiple ways to block your phone number when calling someone.

  7. Toll-free telephone numbers in the North American Numbering ...

    en.wikipedia.org/wiki/Toll-free_telephone...

    Calls that cross U.S. LATA boundaries, or originate in one country and terminate in another, are referred to as inter-exchange calls. The format of the toll-free number is called a non-geographic number, in contrast to telephone numbers associated with households that are geographic. (Since the advent of cell phones and voice over IP ...

  8. Fictitious telephone number - Wikipedia

    en.wikipedia.org/wiki/Fictitious_telephone_number

    In Hungary, telephone numbers are in the format 06 + area code + subscriber number, where the area code is a single digit 1 for Budapest, the capital, followed by a seven digit subscriber number, and two digits followed by either seven (for cell phone numbers) or six digits (others). for other areas, cell phone numbers or non-geographic numbers ...

  9. North American Numbering Plan - Wikipedia

    en.wikipedia.org/wiki/North_American_Numbering_Plan

    The number of digits dialed is unrelated to being a local call or a toll call when there is no toll alerting. Allowing 7D local dialing across an area code boundary, which was historically possible but is very rare today, required central office code protection , locally if using toll alerting, across the entire area code otherwise, to avoid ...