10 MHz block in the 2100 MHz band. In July 2014, they announced that they have over 10,000 3G and 9,000 4G ready cell sites. Jazz did not bid for any 4G spectrum in the 2014 NGMS auction. Post-merger with Warid Pakistan, Jazz was able to use Warid Pakistan's license allowing them to become an 4G network using a 5 MHz block in the 1800 MHz band. In May 2017, Jazz won the 2017 NGMS auction held by PTA. This includes a 10 MHz block in the 1800 MHz (FDD-LTE Band 3) frequency to be used for Jazz 4G. Jazz was also awarded additional 4G spectrum on 30 June 2017 by PTA. 4G+ / LTE-A launch Jazz has refarmed a 10 MHz block from its 900 MHz spectrum for carrier aggregation with their existing 1800 MHz 4G spectrum. The LTE-A network would be rolled out to cater for growing demand. This makes them the third carrier after Telenor Pakistan and Zong 4G to officially launch LTE-A in the country. In July 2021, Jazz upgraded its existing LTE network to LTE-A Pro, with the introduction of 256-QAM and Massive MIMO. It is currently the only network in Pakistan that is offering 3CA (Tri-band) carrier aggregation and 256-QAM on its LTE network. VoLTE testing Jazz tested VoLTE in May 2017 with its partners Huawei and Nokia, announced in a press statement. It is the first operator in Pakistan to prepare for the launch of VoLTE in the country. Jazz has rolled out VoLTE across its network, with supported devices including Samsung, Huawei, Oppo, Vivo, Itel, Xiaomi, Realme, Infinix and Jazz Digit branded feature phones. 5G Trials In January 2020, Jazz had reported that they had successfully carried out 5G trials with reaching speeds of 1.5Gbps. These trials were carried out on the 2.6 GHz spectrum. Subsidiaries JazzCash Jazz had partnered with Mobilink Microfinance Banking to make an entry into the branchless banking market, initially launched under the MobiCash brand name, it was later changed to JazzCash. It is a direct competitor to Telenor Pakistan's Easypaisa. It allows users to pay bills, send and receive money and purchase top-ups for prepaid mobile numbers. Branding Jazz appointed Ertugrul Ghazi famed Esra Bilgic as its Brand Ambassador. References Jazz (mobile network operator) VEON Internet service providers of Pakistan Pakistani brands Pakistani subsidiaries of foreign companies Mergers and acquisitions of Pakistani companies Companies based in Islamabad