بادئات النظام الدولي

	Below is a list of country code and with international dialing prefix
" The International Vocabulary of Metrology VIM- 1993 defines metrology as the Science of measurements associated to the evaluation of its uncertainty	A country code must be dialed when dialing an international call from one particular country to another

نظام الوحدات الدولي

ENTEL Venezuela; 01-50-0 - LD Telecomunicaciones, C.

بادئات النظام العالمي: ; 01-19-0 - Totalcom Venezuela; 01-23-0 - Orbitel de Venezuela, C
البادئات المترية (Metric Prefixes) ووحدات النظام العالمي (SI Units): This code was defined by ITU and groups all countries and regions with numbers
جمعية صوريف للتعليم العالي: رموز الدول وبادئات الاتصال المباشر الدولية: While an international dialing prefix must be added before the country code so the telephone system can distinguish an international dialing from domestic dialing