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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 .
National conventions for writing telephone numbers vary by country. The International Telecommunication Union (ITU) publishes a recommendation entitled Notation for national and international telephone numbers, e-mail addresses and Web addresses. Recommendation E.123 specifies the format of telephone numbers assigned to telephones and similar communication endpoints in national telephone ...
GB Group plc. GBG is an identity verification, location intelligence and fraud prevention company. GBG sells software and data that help organizations validate and verify the identity and location of their customers. GBG products are built on data obtained from over 200 global partners. GBG focuses on technology for location intelligence, fraud ...
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This is a discussion of telephone numbers in Vietnam. Vietnam 's country code is +84. There are many area codes for landlines, as well as a separate format for mobile phone numbers. The five emergency phone numbers are 111 ( child protection ), 112 (lifesaving services), 113 ( police ), 114 (fire), and 115 (first aid).
Telephone number format All telephone numbers in Mexico have ten digits, of which the first identifies one of the eight principal geographic regions of the country.
^ The number of digits that allow to uniquely identify a number within the country. It excludes the country code and any trunk code or access code. It includes the mobile prefix towards the total number of digits.
Geographical telephone numbers have nine digits and consist of an area code of two or three digits and a subscriber number of seven or six digits, respectively. When dialled within the country, the number must be prefixed with the trunk access code 0, identifying a destination telephone line in the Dutch telephone network.