Area code 770
Area code 770 serves Marietta and nearby parts of Georgia, including Roswell, Lawrenceville and Alpharetta. It is on Eastern Time, which observes daylight saving time. 404, 678 and 470 are overlays for the same area.
Area code 770 at a glance
Cities in 770
- Marietta
- Roswell
- Lawrenceville
- Alpharetta
An area code shows where a number was first assigned. Mobile numbers keep their area code when people move, so the person you’re calling may be somewhere else.
When you can call a 770 number
Federal telemarketing rules under the TCPA allow sales calls between 8 AM and 9 PM in the called person’s local time. Here is that window for a 770 number, shown in your own time zone.
General information, not legal advice. Some states add rules for Sundays, holidays or the number of calls. See our calling hours guide.
| If you’re on | You can call 770 between |
|---|---|
| Eastern | 8:00 AM to 9:00 PM |
| Central | 7:00 AM to 8:00 PM |
| Mountain | 6:00 AM to 7:00 PM |
| Arizona | 5:00 AM to 6:00 PM |
| Pacific | 5:00 AM to 6:00 PM |
See the time in 770 without leaving your CRM
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Other area codes in Georgia
Questions about 770
What time zone is area code 770?
Area code 770 is on Eastern Time. It observes daylight saving time.
Where is area code 770?
Area code 770 is in Georgia. Its main city is Marietta, and it also covers Roswell, Lawrenceville and Alpharetta.
What are the legal hours to call a 770 number?
Under the federal TCPA, sales calls are allowed from 8 AM to 9 PM in the called person’s local time. Personal and informational calls are not limited by these hours.
What area codes overlay 770?
404, 678 and 470 cover the same area as 770, so numbers in the same town can have either code.