671 area code
Guam, Guam Time.Area code 671 is Guam, on Guam Time.
Right now in Guam
Guam Time (GMT+10, UTC+10, all year)
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
Calling a lot of them? RegieGO dials up to five lines at once. See the dialer
When can you call a 671 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 671 number to them, since you can't tell a work line from a personal cell.
What applies to 671Every day, 8 AM to 9 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
The 671 area code
Guam is one calling area, with no rate centers to tell apart. 671 went into service on July 1, 1997. Local calls take all 10 digits.
- 1997671 starts
Source: NANPA area code database
Calling a list of 671 numbers?
Paste it into the free phone number validator. It checks every number, finds each one's time zone and sorts the list by who you can call right now.
671 area code FAQ
What area code is 671?
671 is a Guam area code.
What time zone is the 671 area code in?
Guam Time (GMT+10, UTC+10, all year).
What are the calling hours for 671 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 671 area code start?
On July 1, 1997.
Calling 671 numbers? Reach more of them.
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