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Map Showing Regional Boundaries in the U.S.

TRICARE is available worldwide and managed in four separate regions. 

  • The three U.S. regions are shown here.
  • Anywhere outside of the U.S. is considered "overseas"
  • Each region has its own regional contractor
  • See the chart below for contact information

North Region Heading Bar

South Region Header Bar

West Region Header Bar

North RegionConnecticut, Delaware, the District of Columbia, Illinois, Indiana, Iowa (Rock Island area), Kentucky (except Fort Campbell), Maine, Maryland, Massachusetts, Michigan, Missouri (St. Louis area), New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, and Wisconsin.
Health Net

South RegionAlabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, Oklahoma, South Carolina, Tennessee, Texas (excluding El Paso area), and Fort Campbell, Kentucky
Humana Military

West RegionAlaska, Arizona, California, Colorado, Hawaii, Idaho, Iowa (excludes Rock Island arsenal area), Kansas, Minnesota, Missouri (except St. Louis area), Montana, Nebraska, Nevada, New Mexico, North Dakota, Oregon, South Dakota, Texas (southwestern corner including El Paso), Utah, Washington and Wyoming.

Overseas Header Bar

Eurasia-Africa AreaEuropean and African continents, all Middle Eastern countries, Pakistan, Russia and several former Soviet Republics. This includes Baltic States, Ukraine, Georgia, Kazakhstan, Kyrgyzstan and Uzbekistan.
International SOS
1-877-678-1207 (Stateside)

Latin America and Canada AreaCentral and South America, the Caribbean Basin, Canada, Puerto Rico and the Virgin Islands.
International SOS
1-877-451-8659 (Stateside)

Pacific AreaGuam, Japan, Korea, Asia, Australia, New Zealand, India and Western Pacific remote countries.
International SOS
+65-6339-2676 (Singapore)
+61-2-9273-2710 (Sidney)
1-877-678-1208/1209 (Stateside)

  • Our regional and other contractor partners provide health care services for each TRICARE health plan, pharmacy and dental benefits.
  • If you're using TRICARE For Life in the U.S. or a U.S. Territory, call 1-866-773-0404 or visit
  • If you're using the US Family Health Plan, call 1-800-74-USFHP (1-800-748-7347) or visit

Last Updated 7/19/2016