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  2. List of mobile telephone prefixes by country - Wikipedia

    en.wikipedia.org/wiki/List_of_mobile_telephone...

    Instituto Costarricense de Electricidad (Kölbi) Croatia +385: 91: 9: A1 Hrvatska: Due to Mobile number portability the prefix of an existing number does not determine the carrier. Any new number will follow the numbering plan. 92: Tomato: 95: Telemach 97: bonbon: 98: HT: 99 Cuba +53: 5? ETECSA: Curaçao +599: 9? See Curaçao and the Caribbean ...

  3. Truecaller - Wikipedia

    en.wikipedia.org/wiki/Truecaller

    In February 2014, Truecaller received US$18.8 million in funding from Sequoia Capital, alongside existing investor OpenOcean, Truecaller chairman Stefan Lennhammer, and an unnamed private investor. It also announced a partnership with Yelp to use Yelp's API data to help identify business numbers when they call a smartphone . [ 16 ]

  4. Virtual number - Wikipedia

    en.wikipedia.org/wiki/Virtual_number

    A virtual number, also known as direct inward dialing (DID) or access numbers, is a telephone number without a directly associated telephone line. Usually, these numbers are programmed to forward incoming calls to one of the pre-set telephone numbers, chosen by the client: fixed, mobile or VoIP. A virtual number can work like a gateway between ...

  5. Caller ID spoofing - Wikipedia

    en.wikipedia.org/wiki/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. [1]

  6. Toll-free telephone number - Wikipedia

    en.wikipedia.org/wiki/Toll-free_telephone_number

    A toll-free telephone number or freephone number is one number that is billed for all arriving calls. For the calling party, a call to a toll-free number from a landline is free of charge. A toll-free number is identified by a dialing prefix similar to an area code. The specific service access varies by country.

  7. Wardialing - Wikipedia

    en.wikipedia.org/wiki/Wardialing

    In the film, the protagonist programmed his computer to dial every telephone number in Sunnyvale, California to find other computer systems. Prior to the movie's release, this technique was known as "hammer dialing" or " demon dialing ", [ citation needed ] but the film introduced the method to many, such as the members of The 414s . [ 3 ]

  8. Telstar - Wikipedia

    en.wikipedia.org/wiki/Telstar

    Subsequent Telstar satellites were advanced commercial geosynchronous spacecraft that share only their name with Telstar 1 and 2. The second wave of Telstar satellites launched with Telstar 301 in 1983, followed by Telstar 302 in 1984 (which was renamed Telstar 3C after it was carried into space by Shuttle mission STS-41-D), [21] and by Telstar 303 in 1985.

  9. PhoneSat - Wikipedia

    en.wikipedia.org/wiki/PhoneSat

    PhoneSat is an ongoing NASA project of building nanosatellites using unmodified consumer-grade off-the-shelf smartphones and Arduino platform and launching them into Low Earth Orbit. This project is part of NASA's Small Spacecraft Technology Program and was started in 2009 at NASA Ames Research Center ( Moffett Field , California ).