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  2. North American Numbering Plan - Wikipedia

    en.wikipedia.org/wiki/North_American_Numbering_Plan

    The feature requires the customer dial a 950-xxxx number and enter a calling card number and destination telephone number. It was originally used for locations where 101-xxxx dialing was not possible. 958-xxxx (local); 959-xxxx (long distance) — Plant test numbers, such as automatic number announcement circuits.

  3. DNP3 - Wikipedia

    en.wikipedia.org/wiki/DNP3

    A Remote Terminal Unit for the DNP3 protocol can be a small, simple embedded device, or it can be a large, complex rack filled with equipment. The DNP User Group has established four levels of subsets of the protocol for RTU compliance. The DNP Users Group has published test procedures for Levels 1 and 2, the simplest implementations.

  4. Telephone number - Wikipedia

    en.wikipedia.org/wiki/Telephone_number

    Irrespective of the type of numbering plan, "shorthand" or "speed calling" numbers are automatically translated to unique telephone numbers before the call can be connected. Some special services have special short codes (e.g., 119, 911, 100, 101, 102, 000, 999, 111, and 112 being the emergency telephone numbers in many countries).

  5. Calling Name Presentation - Wikipedia

    en.wikipedia.org/wiki/Calling_Name_Presentation

    In the US, the caller's name, or CNAM information, is not sent during a call. Rather, the terminating carrier is responsible for providing the Caller ID information to its customer. The terminating carrier performs a database lookup using the caller's phone number to obtain the name information to display with Caller ID.

  6. What Do Credit Card Numbers Mean? - AOL

    www.aol.com/finance/credit-card-numbers-mean...

    For premium support please call: 800-290-4726 more ways to reach us. Sign in. Mail. 24/7 Help. ... For example, an airline credit card number will start with a one, while a Visa bank card will ...

  7. Telephone numbering plan - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbering_plan

    This means that to call another number within the same city or area, callers need to dial only a subset of the full telephone number. For example, in the NANP, only the seven-digit number may need to be dialed, but for calls outside the local numbering plan area, the full number including the area code is required.

  8. DNP - Wikipedia

    en.wikipedia.org/wiki/DNP

    DNP may refer to: Science and technology. 2,4-Dinitrophenol, a small organic molecule formerly marketed as a pharmaceutical "diet aid" Deoxyribonucleoprotein, a ...

  9. What is DNP and why is it so dangerous? - AOL

    www.aol.com/dnp-why-dangerous-140847464.html

    The substance has killed at least 33 people in the UK. For premium support please call: 800-290-4726 more ways to reach us