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  2. 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 ...

  3. A leaky database spilled 2FA codes for the world’s tech giants

    techcrunch.com/.../leaky-database-two-factor-codes

    But codes sent over SMS text messages are not as secure as stronger forms of 2FA — an app-based code generator, for example — since SMS text messages are prone to interception or exposure, or ...

  4. 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 ...

  5. WhatsApp resolves issue that exposed some users' phone ...

    techcrunch.com/2020/06/09/whatsapp-resolves...

    WhatsApp has resolved an issue that caused phone numbers of some of its users to appear in Google search results. The fix comes days after a researcher revealed that the phone number of WhatsApp ...

  6. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    Worldwide distribution of country calling codes. Regions are coloured by first digit. Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.

  7. 555 (telephone number) - Wikipedia

    en.wikipedia.org/wiki/555_(telephone_number)

    The 555 exchange is not reserved in area codes used for toll-free phone numbers. This led to the video game The Last of Us accidentally including the number to a phone-sex operator. [9] The number "555-2368" (or 311-555-2368) is a carryover from the "EXchange 2368" ("Exchange CENTral") number common in telephone advertisements as early as the ...

  8. WhatsApp was exposing users' phone numbers in Google search

    www.engadget.com/whatsapp-google-search-phone...

    Jayaram says as many as 300,000 phone numbers may have appeared in Google search results, and they could be found by searching “site:wa.me.” As TechCrunch notes, Jayaram isn’t the first to ...

  9. Telephone numbers in the Philippines - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_the...

    Within Metro Manila, Rizal, and cities of Bacoor and San Pedro: 8123-4567. Outside Metro Manila, Rizal, and cities of Bacoor and San Pedro: 02-8123-4567. Overseas calls: +63-2-8123-4567. Since October 6, 2019, all telephone numbers with the area code 2 were migrated to eight digits, as mandated by the National Telecommunications Commission's ...