dhaka bangladesh founder mr. a rouf chowdhury headquarters 117 a old airport road bijoy sharani tejgaon dhaka 1215 bangladesh area served all over bangladesh products pstn telecom website http www.rankstelecom.com rankstel bengali is a bangladeshi telecom company . it is a private public switched telephone network pstn operator in bangladesh . as of december 2009 its subscriber base was 274 895 . 1 it is the nation s second largest pstn operator . ranks telecom ltd is a member of rangs group . rankstel is one of the largest private sector investments in bangladesh with an accumulated investment of bdt 200 cores . rankstel holds pstn and isp licenses to operate nationwide . rankstel has also been awarded with an international gateway igw license to originate and terminate international voice traffic . ranks telecom ltd is registered with registrar of joint stock companies under companies act 1995 revised . its slogan is rankstel a kotha bolun desher taka deshe rakhun . contents 1 history 2 subscribers 3 technology 4 number plan 5 references 6 external links history edit on 7 june 2004 ranks telecom limited a sister concern of rangs group first got pstn license to operate in chittagong sylhet and dhaka periphery zone . 2 on 13 january 2005 rankstel received operational license from btrc for khulna and bogra zone . 2 the firm launched its wireless phone service under the brand name of rankstel on april 14 2005 . 2 on 9 september 2007 after more than two years of service rankstel received nationwide pstn license from bangladesh telecom regulatory commission . 3 on 19 march 2010 he telecoms regulator btrc shut down private land phone operator rankstel for allegedly running unlicensed voip operations . 4 on 17 july 2011 won approval to resume operations after a 16 month shutdown . 5 subscribers edit as of december 2009 rankstel has over 274.895 thousand subscribers 1 nationwide . since its shutdown by btrc its subscriber count has been removed from the listing in btrc s web site . technology edit the company uses cdma 2000 1x at a frequency of 800 mhz . number plan edit rankstel uses the following numbering scheme 880 44 r1r2r3r4r5r6r7r8 880 is the international subscriber dialling code for bangladesh 44 is the btrc allocated code for rankstel . considering local dialling 044 will be the general prefix r1 is the division wise local code for rankstel r2 is the package identification number for the subscriber of rankstel r3 to r8 is subscriber identification number for rankstel 880447 dhaka central 880443 chittagong 880449 sylhet 880445 bogra 880444 khulna 880449 dhaka references edit a b brtc pstn subscriber statistics december 2009 a b c rankstel.com . rankstel.com . pstn operator list bdnews24.com . bdnews24.com . rankstel set to resume service . thedailystar.net . external links edit official website v t e pstn operators of bangladesh bijoy phone btcl national telecom limited onetel communication ltd. peoplestel rankstel telebarta satel retrieved from https en.wikipedia.org w index.php title rankstel & oldid 694798112 categories telecommunications companies of bangladeshhidden categories use dmy dates from february 2014pages using infobox company with unsupported parametersarticles containing bengali language text navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version languages edit links this page was last modified on 11 december 2015 at 16 54 . text is available under the creative commons attribution sharealike license ; additional terms may apply . by using this site you agree to the terms of use and privacy policy . wikipedia is a registered trademark of the wikimedia foundation inc. a non profit organization . privacy policy about wikipedia disclaimers contact wikipedia developers cookie statement mobile view