Northern Mariana Islands
Infrastructure

The islands have more than 220 miles (350 km) of highways, three airports with paved runways (one about 9,800 feet (3,000 m) long; two around 6,600 feet (2,000 m)), three airports with unpaved runways, and one heliport. The main commercial airport is Saipan International Airport.

Commuter airline Star Marianas Air provides short-haul flights between Guam, Saipan, Tinian, and Rota. International carriers connect Saipan with Korea, China, and Japan; flights to the U.S. mainland typically connect through Guam or Hawaiʻi.

In addition to by air, inter-island travel within the commonwealth is possible via ferry or chartered vessel services. For example, to visit Pagan is a 200-mile (320 km) boat trip.

Mail service for the islands is provided by the U.S. Postal Service (USPS). Each major island has its own ZIP code in the 96950–96952 range, and the USPS two-letter abbreviation for the CNMI is MP ("Marianas Pacific", NM and MI being taken). "CM" has been used previously and is still used in some contexts, but can be confused with Cameroon. For phone service, the islands are included in the North American Numbering Plan, using area code 670.

Television service is provided by KPPI-LD, Channel 7, which simulcasts Guam's ABC affiliate, KTGM, as well as WSZE, Channel 10, which simulcasts Guam's NBC affiliate, KUAM-TV. About 10 radio stations broadcast within the CNMI.

In 2012, Slate reported that CNMI internet prices were five times those of Guam, and that the price per megabit increases if a customer chooses a higher level internet package due to the limited bandwidth. In 2023, some Federal funding for improving broadband was allocated to the territory.
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