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  2. Mobile telephone numbering in India - Wikipedia

    en.wikipedia.org/wiki/Mobile_telephone_numbering...

    In India, mobile numbers (including pagers) on GSM, WCDMA, LTE and NR networks start with either 9, 8, 7 or 6.Each telecom circle is allowed to have multiple private operators; earlier it was two private + BSNL/MTNL, subsequently it changed to three private + BSNL/MTNL in GSM; now each telecom circle has all four operators including Reliance Jio, Bharti Airtel, Vodafone idea ltd and BSNL/MTNL.

  3. List of mobile telephone prefixes by country - Wikipedia

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

    Canada +1: n/a 10: Mobile phones use geographic area codes. Exchanges may service on mobile devices; local numbers are portable between wired and wireless carriers. While area code 600 has been established as a non-geographic code that can be used by mobile phones, the only significant mobile usage has been for satellite phone service in remote ...

  4. List of national identity card policies by country - Wikipedia

    en.wikipedia.org/wiki/List_of_national_identity...

    Honduras. Cédula de identidad (national identity card) The Honduran national identity card is an electronic ID card, compulsory for all Honduran nationals at the age of 18. [36] Hong Kong. Hong Kong Identity Card (HKID) Identity cards have been used since 1949, and been compulsory since 1980.

  5. Personal identification number - Wikipedia

    en.wikipedia.org/wiki/Personal_identification_number

    A personal identification number ( PIN ), PIN code, or sometimes redundantly a PIN number, is a numeric (sometimes alpha-numeric) passcode used in the process of authenticating a user accessing a system. The PIN has been the key to facilitating the private data exchange between different data-processing centers in computer networks for ...

  6. 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 ...

  7. Developers can now verify mobile app users over WhatsApp ...

    techcrunch.com/2019/04/30/developers-can-now...

    When using a phone number to sign in, it’s common for the app to confirm the user by sending a verification code over SMS to the number provided. The user then enters that code to create their ...

  8. 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 ...

  9. Add, replace or remove AOL account recovery info - AOL Help

    help.aol.com/articles/add-or-update-aol-account...

    Call paid premium support at 1-800-358-4860 to get live expert help from AOL Customer Care. Find out how to add or delete a recovery mobile phone number or alternate email address from your AOL account.