Guam Area Codes
Data last updated: June 25, 2026
Area Codes in Guam
| NPA | Major Cities | Status | Exchanges | Overlay |
|---|---|---|---|---|
| 671 | Hagatna, Tamuning, Susupe | Active | 767 | No |
Top Carriers in Guam
| Carrier | OCN | NXX Count |
|---|---|---|
| TELEGUAM HOLDINGS, LLC | 3800 | 40 |
| PTI PACIFICA INC. | 387C | 19 |
| GUAM WIRELESS TELEPHONE COMPANY, LLC | 3945 | 14 |
| TELEGUAM HOLDINGS, LLC | 3922 | 13 |
| CHOICE PHONE, LLC DBA ICONN | 1085 | 2 |
| PACIFIC DATA SYSTEMS - GU | 332E | 2 |
| PTI PACIFICA INC. DBA IT&E - GU | 335E | 2 |
| DOCOMO PACIFIC, INC. | 897F | 2 |
| PTI PACIFICA INC. DBA IT&E | 599E | 1 |