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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
 Map Showing Regional Boundaries in the U.S.

North Region Heading Bar

South Region Header Bar

West Region Header Bar

North RegionThe North Region includes Connecticut, 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 RegionThe South Region includes Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, Oklahoma, South Carolina, Tennessee, Texas (excluding the El Paso area) and Fort Campbell, Kentucky.
Humana Military

West RegionThe West Region includes Alaska, Arizona, California, Colorado, Hawaii, Idaho, Iowa (excluding Rock Island Arsenal area), Kansas, Minnesota, Missouri (except the St. Louis area), Montana, Nebraska, Nevada, New Mexico, North Dakota, Oregon, South Dakota, Texas (the southwestern corner, including El Paso), Utah, Washington and Wyoming.

Overseas Header Bar

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

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

Pacific AreaThe Pacific Area includes Guam, 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 1/23/2015