OBS_VALUE: <ul><li><a href=http://www.mevzuat.gov.tr/Metin.Aspx?MevzuatKod=7.5.13180&MevzuatIliski=0&sourceXmlSearch=Numara%20Ta%C5%9F%C4%B1nabilirli%C4%9Fi%20Y%C3%B6netmeli%C4%9Fi target=_blank>Regulation on Number Portability(NUMARA TAŞINABİLİRLİĞİ YÖNETMELİĞİ, adopted 2009, with latest modifications of 28.11.2015, Article 7,8,9)</a></li></ul>