Guam 지역 코드: 671
Note：671 지역 번호는 다음과 같습니다 Guam, 미국. 국제 전화 번호는 001671 or 001-671、0010671、+1-671、+1+671、+1671、00-1-671、00 1 671.
More About Area Code 671
Area code 671 was first put in service July 1, 1997. Currently, it covers the entire state of Guam, and it overlaps coverage areas with area code .
Active Phone Number Prefixes
| Prefix | Usage | Primary City | Carrier |
| (671) 300- | Landline | Agana Heights | Pacific Data Systems |
| (671) 333- | Landline | Agana | Teleguam Holdings |
| (671) 339- | Landline | Agana | Teleguam Holdings |
| (671) 343- | Landline | Agana | Teleguam Holdings |
| (671) 344- | Landline | Agana | Teleguam Holdings |
| (671) 349- | Landline | Agana | Teleguam Holdings |
| (671) 355- | Landline | Agana | Teleguam Holdings |
| (671) 362- | Landline | Agana | Teleguam Holdings |
| (671) 366- | Landline | Agana | Teleguam Holdings |
| (671) 400- | Landline | Agana Heights | Pacific Data Systems |
| (671) 456- | Landline | Agana | Pti Pacifica Inc. |
| (671) 471- | Landline | Agana | Teleguam Holdings |
| (671) 472- | Landline | Agana | Teleguam Holdings |
| (671) 473- | Landline | Agana | Teleguam Holdings |
| (671) 474- | Landline | Agana | Teleguam Holdings |
| (671) 475- | Landline | Agana | Teleguam Holdings |
| (671) 477- | Landline | Agana | Teleguam Holdings |
| (671) 478- | Landline | Agana | Teleguam Holdings |
| (671) 479- | Landline | Agana | Teleguam Holdings |
| (671) 482- | Wireless | Agana | Pulse Mobile LLC |
| (671) 483- | Wireless | Agana | Pulse Mobile LLC |
| (671) 486- | Landline | Agana | Pulse Mobile LLC |
| (671) 487- | Landline | Agana Heights | Pulse Mobile LLC |
| (671) 488- | Wireless | Agana | Pulse Mobile LLC |
| (671) 489- | Wireless | Agana Heights | Pulse Mobile LLC |
| (671) 562- | Landline | Agana | Teleguam Holdings |
| (671) 563- | Landline | Agana | Teleguam Holdings |
| (671) 564- | Landline | Agana | Teleguam Holdings |
| (671) 565- | Landline | Agana | Teleguam Holdings |
| (671) 588- | Landline | Agana Heights | Pulse Mobile LLC |
| (671) 632- | Landline | Agana | Teleguam Holdings |
| (671) 633- | Landline | Agana | Teleguam Holdings |
| (671) 634- | Landline | Agana | Teleguam Holdings |
| (671) 635- | Landline | Agana | Teleguam Holdings |
| (671) 637- | Landline | Agana | Teleguam Holdings |
| (671) 638- | Landline | Agana | Teleguam Holdings |
| (671) 642- | Landline | Agana | Teleguam Holdings |
| (671) 644- | Landline | Agana | Teleguam Holdings |
| (671) 645- | Landline | Agana | Teleguam Holdings |
| (671) 646- | Landline | Agana | Teleguam Holdings |
| (671) 647- | Landline | Agana | Teleguam Holdings |
| (671) 648- | Landline | Agana | Teleguam Holdings |
| (671) 649- | Landline | Agana | Teleguam Holdings |
| (671) 653- | Landline | Agana | Teleguam Holdings |
| (671) 654- | Landline | Agana | Teleguam Holdings |
| (671) 678- | Wireless | Agana | Pti Pacifica Inc. |
| (671) 685- | Wireless | Agana Heights | Guam Wireless Telephone Company |
| (671) 686- | Wireless | Agana | Guam Wireless Telephone Company |
| (671) 687- | Wireless | Agana | Guam Wireless Telephone Company |
| (671) 688- | Wireless | Agana | Guam Wireless Telephone Company |
| (671) 689- | Wireless | Agana | Guam Wireless Telephone Company |
| (671) 707- | Wireless | Agana Heights | Pti Pacifica Inc. |
| (671) 726- | Landline | Agana | Pti Pacifica Inc. DBA It&e |
| (671) 727- | Wireless | Agana | Pti Pacifica Inc. |
| (671) 734- | Landline | Agana | Teleguam Holdings |
| (671) 735- | Landline | Agana | Teleguam Holdings |
| (671) 747- | Wireless | Agana Heights | Pti Pacifica Inc. |
| (671) 777- | Wireless | Agana | Pti Pacifica Inc. |
| (671) 787- | Wireless | Agana | Guam Wireless Telephone Company |
| (671) 788- | Wireless | Agana | Guam Wireless Telephone Company |
| (671) 789- | Landline | Agana | Teleguam Holdings |
| (671) 797- | Wireless | Agana Heights | Pti Pacifica Inc. |
| (671) 828- | Landline | Agana | Teleguam Holdings |
| (671) 838- | Wireless | Santa Rita | Wave Runner |
| (671) 848- | Wireless | Agana Heights | Wave Runner |
| (671) 858- | Wireless | Agana Heights | Wave Runner |
| (671) 864- | Landline | Agana | Pulse Mobile LLC |
| (671) 868- | Wireless | Santa Rita | Choice Phone LLC DBA Iconn |
| (671) 878- | Wireless | Agana Heights | Choice Phone LLC DBA Iconn |
| (671) 888- | Wireless | Agana | Choice Phone LLC DBA Iconn |
| (671) 898- | Wireless | Santa Rita | Choice Phone LLC DBA Iconn |
| (671) 922- | Landline | Agana Heights | Pti Pacifica Inc. DBA It&e |
| (671) 929- | Wireless | Agana Heights | Guam Wireless Telephone Company |
| (671) 967- | Wireless | Agana Heights | Pti Pacifica Inc. |
| (671) 969- | Landline | Agana Heights | Guam Telecom |
| (671) 971- | Landline | Agana Heights | Pti Pacifica Inc. |
| (671) 972- | Wireless | Agana Heights | Pti Pacifica Inc. |
| (671) 977- | Wireless | Agana Heights | Pti Pacifica Inc. |
| (671) 979- | Landline | Agana Heights | Pti Pacifica Inc. DBA It&e |
| (671) 987- | Wireless | Agana Heights | Pti Pacifica Inc. |
| (671) 988- | Wireless | Agana | Guam Wireless Telephone Company |
| (671) 989- | Landline | Agana Heights | Guam Telecom |
| (671) 997- | Wireless | Agana Heights | Pti Pacifica Inc. |
| (671) 998- | Wireless | Agana Heights | Pti Pacifica Inc. |