up to 42 Mbit/s on contiguous 1900 MHz spectrum. Digicel also offers 21 Mbit/s HSPA+ however, they also offer DC-HSDPA (commonly known as DC-HSPA+) allowing capable devices speeds of up to 42 Mbit/s on contiguous 850 MHz spectrum. Digicel was also first to market with LTE in Jamaica. Their network covers all of Kingston Parish and most of the populous areas in the Kingston Metropolitan Area, capable of speeds of up to 75 Mbit/s on 10 MHz of Band 17 spectrum. FLOW also offers LTE in Kingston. FLOW's LTE network is accessible on Band 4 or AWS spectrum. Due to the network delaying its rollout to acquire more spectrum, its network is theoretically faster than both Digicel and Caricel, to the tune of 150 Mbit/s (20 MHz of Bandwidth) with further plans to add low band spectrum, possibly increasing theoretical speeds up to 225 Mbit/s. Kingston is also home to Caricel, Jamaica's newest telecoms operator, which deployed its LTE network first to the Kingston Metropolitan Area. In addition, both carriers have their Jamaican head offices in the city (with the exception of Digicel, which has its company headquarters in Kingston rather than a regional office there as is the case with FLOW, which is based in Miami). Postal service Postal services in Kingston and throughout the island are provided by the Postal Corporation of Jamaica, the national post office of Jamaica. Services include domestic and international mail delivery, post office boxes, registered mail, priority mail (local courier), parcel delivery, express mail service (international courier), advertising mail and provision of post office boxes. Kingston is divided in several postal zones enumerated as follows; Institutions Kingston, as the capital, is the financial, cultural, economic and industrial centre of Jamaica. Many financial institutions are based in Kingston, and the city boasts the largest number of hospitals, schools, universities and cultural attractions of any urban area on the island. Notable Kingston landmarks include the University of the West Indies, Jamaica Defence Force Museum, and Bob Marley Museum. A United Nations agency, the International Seabed Authority is headquartered in Kingston. International relations Twin towns – Sister cities Kingston is twinned with: Miami-Dade County, Florida, United States Kalamazoo, Michigan, United States Topeka, Kansas, United States Gibraltar (United Kingdom) Coventry, Warwickshire, England Guadalajara, Mexico Shenzhen, People's Republic of China Panevėžys, Lithuania Windhoek, Namibia Notable people See also List of metropolitan areas in the West Indies Roy Anthony