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	Guam			+1 (671)

Number Format

Area Code:            3 digits
Subscriber Number:    7 digits
Trunk Prefix:         1
International Prefix: 011

1 July 1997 - switch from +671 to +1 671

A permissive dialling period continued until 1 July 1998, after which +671 was discontinued and +1 671 became mandatory.

See: Guam Telephone Authority announcement (via ITU, 21 April 1997).

Other Information

See United States Pacific Islands section.

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