Area code 671
Get a 671 phone number
To get a 671 phone number, pick an available 671 number below and sign up for AvoCall. Your new number works for calls and texts on the phone you already own over WiFi or data. Current web pricing is verified at checkout. No second SIM and no new device are required.
- Location
- Hagatna, GU, Guam
- Time zone
- Chamorro (GMT +10)
The 671 area code covers Hagatna, GU and nearby Guam communities.
About the 671 area code
Guam, a US territory in the Chamorro time zone, ten hours ahead of GMT, uses area code 671. The code is assigned to Hagatna together with Dededo, Tamuning, Mangilao, and Yigo.
Service under 671 began in 1997. The code has no overlay partner and has never been divided, and Guam continues to rely on this one code for all of its telephone numbering.
Dialing note: 671 has been in service since 1997.
Numbering details on this page (service dates and overlay status) are checked against the NANPA numbering registry. Registry data as of 07/16/2026.
671 phone number FAQ
- How do I get a 671 phone number?
- Pick an available 671 number and sign up for AvoCall. Your new Hagatna, GU number works for calls and texts on your existing phone over WiFi or data. Current web pricing is verified at checkout. There is no second SIM and no new device.
- Where is the 671 area code?
- It serves Hagatna, GU and nearby cities in Guam, including Dededo, Hagatna, Tamuning.
- Can I receive verification codes on a 671 number?
- AvoCall 671 numbers support calling and messaging. Verification-text compatibility varies by sender; short-code and 2FA delivery is not guaranteed.