It is a private public switched telephone network (PSTN) operator in Bangladesh, and nation's second largest PSTN operator.in end of the 2023 many few Rankstel assets was sold to BSNL Mobile Ranks Telecom Limited, a member of Rangs Group, launched its fixed line operation under the brand name RANKSTEL on 14 April 2005.

RANKSTEL's physical infrastructure includes about 10 major hubs (switching and transmission) and more than 200 access nodes across the country.

On 7 June 2004, Ranks Telecom Limited, a sister company of the RANGS Group, got a PSTN license to operate in Chittagong, Sylhet and Dhaka.

[1] On 9 September 2007, after more than two years of service, RANKSTEL received a nationwide PSTN license from the Bangladesh Telecom Regulatory Commission (BTRC).

[5] On 8 January 2017, RanksTel launched a gigabit connectivity service and rebranded itself with a new logo.