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  2. Telephone number verification - Wikipedia

    en.wikipedia.org/wiki/Telephone_number_verification

    Telephone number verification. Telephone number verification (or validation) services are online services used to establish whether a given telephone number is in service. They may include a form of Turing test to further determine if a human answers or answering equipment such as a modem, fax, voice mMail or answering machine .

  3. SMS spoofing - Wikipedia

    en.wikipedia.org/wiki/SMS_spoofing

    SMS spoofing. SMS spoofing is a technology which uses the short message service (SMS), available on most mobile phones and personal digital assistants, to set who the message appears to come from by replacing the originating mobile number (Sender ID) with alphanumeric text. Spoofing has both legitimate uses (setting the company name from which ...

  4. SIM swap scam - Wikipedia

    en.wikipedia.org/wiki/SIM_swap_scam

    A SIM swap scam (also known as port-out scam, SIM splitting, [ 1] simjacking, and SIM swapping) [ 2] is a type of account takeover fraud that generally targets a weakness in two-factor authentication and two-step verification in which the second factor or step is a text message (SMS) or call placed to a mobile telephone.

  5. Chikka - Wikipedia

    en.wikipedia.org/wiki/Chikka

    Chikka Text Messenger was the first instant messaging desktop client to support communication with mobile phones via SMS that allowed users to send free SMS messages to other users. Users who registered their mobile numbers could also receive messages on their phones whenever offline. Other platforms and devices where Chikka were available:

  6. Scammers now using verification codes to hijack phone numbers

    www.aol.com/news/scammers-now-using-verification...

    Scammers now using verification codes to hijack phone numbers. August 26, 2021 at 6:28 PM. A new scam tries to use your phone number to scam others, and you could be at risk if you post your ...

  7. National conventions for writing telephone numbers - Wikipedia

    en.wikipedia.org/wiki/National_conventions_for...

    All telephone numbers in Iran have 11 digits (initial 0 and ten digits). The first two or three digits after the zero are the area code. The possibilities are: (0xx) xxxx xxxx (for landlines), 09xx xxx xxxx (for cellphones) and 099xx xxx xxx (for MVNO ). When making a call within the same landline area code, initial 0 plus the area code must be ...

  8. How to Do a Free Reverse Phone Lookup & the 8 Best ... - AOL

    www.aol.com/finance/free-reverse-phone-lookup-8...

    8. Spy Dialer. Spy Dialer is a free reverse phone lookup service that accesses public databases of registered phone numbers to help users find information on cell phone and landline numbers and ...

  9. TNT (cellular service) - Wikipedia

    en.wikipedia.org/wiki/TNT_(cellular_service)

    TNT (formerly known as Piltel, Mobiline, Phone Pal, and still unofficially known as Talk 'N Text) is a cellular service of Smart Communications in the Philippines. [ 1] By April 2000, Piltel launched its GSM brand, Talk 'N Text. Piltel also reported 16,590,737 subscribers to its GSM brand, Talk 'N Text, before its transfer to Smart.