One of metro Atlanta’s largest and most historic suburbs, Roswell blends a beautifully preserved antebellum downtown with the natural beauty of the Chattahoochee River. As part of the Atlanta metro, it shares the region’s four overlapping area codes. This guide breaks down Roswell’s 404, 770, 678, and 470 codes, the required 10-digit dialing, major ZIP codes, and local scam warnings.
Roswell Area Codes at a Glance
| Detail | Information |
|---|---|
| Primary Area Code(s) | 404 / 770 |
| Overlay Area Code(s) | 678 / 470 |
| Time Zone | Eastern Time (ET) – EST / EDT |
| Major County | Fulton County |
| Dialing Format | 10-digit dialing required |
Area Code Breakdown & District Mapping
404 – Atlanta’s Core Code
Area code 404 is metro Atlanta’s original code, historically tied to the city core. Even in the suburbs it appears on many mobile and ported numbers throughout the region.
770 – Atlanta Suburbs Code
Area code 770 was split from 404 in 1995 to serve the ring of suburbs around Atlanta — the geographic home code for the communities north of the city.
678 – Metro Atlanta Overlay
Area code 678 is the 1998 overlay covering the entire metro, so it appears on lines throughout both the city and the suburbs.
470 – Newest Metro Atlanta Overlay
Area code 470 is the 2010 overlay layered over the whole metro area, adding further numbering capacity across the region.
Neighborhoods & Local Coverage
Roswell’s area codes cover a suburb famous for its Historic District, where the shops and restaurants of Canton Street and the antebellum mansions of Bulloch Hall and Barrington Hall draw visitors year-round. The restored Roswell Mill and the trails along Vickery Creek anchor the city’s riverside charm.
Beyond the historic core, the same codes reach the residential neighborhoods of East Roswell, the riverfront community of Martin’s Landing, and the commercial corridors along Holcomb Bridge and Alpharetta Highway. Because Roswell sits inside the Atlanta metro, its numbers share all four regional codes with the city and neighboring suburbs.
Local Dialing Rules & International Format
Roswell, like all of metro Atlanta, requires 10-digit dialing — always dial the area code plus the 7-digit number. All four codes (404, 770, 678, 470) are local to one another across the region.
To call Roswell from outside the United States, dial your country’s exit code, then the U.S. country code +1, followed by the 10-digit number (for example, +1 770 XXX-XXXX). From inside the U.S. and Canada, simply dial 1 before the 10-digit number for long-distance calls.
Major ZIP Codes Covered
The 404 / 770 service area spans many of Roswell’s core ZIP codes, including 30075, 30076, and 30077.
Spam & Scam Call Warnings in Roswell
Roswell residents report neighbor-spoofing robocalls faking a local 770 prefix, plus fake utility-shutoff threats from callers posing as Georgia Power. Auto-warranty and fake-delivery scams are also common across north Fulton County.
| Scam Type | What to Watch For |
|---|---|
| Neighbor Spoofing | Calls that mimic a local 770 prefix to look familiar. |
| Utility / Toll Scams | Threats to shut off power or demand toll payment via gift cards. |
| IRS / Government | Robocalls claiming legal action — agencies never call to demand instant payment. |
Red flag: Any caller who pressures you to pay immediately with gift cards, wire transfers, or cryptocurrency is almost certainly running a scam. Hang up and verify through an official number.
↑ See the complete list of All US Area Codes by State for every code across the country.
Nearby & Related Georgia Cities
Frequently Asked Questions
What area code is Roswell, GA?
Roswell uses metro Atlanta’s four area codes: 404, 770, 678, and 470.
Does Roswell have the same area code as Sandy Springs?
Yes. Roswell and Sandy Springs both share the metro Atlanta 404/770/678/470 codes.
Do I need to dial 10 digits in Roswell?
Yes. All local calls in Roswell and metro Atlanta require 10-digit dialing.
What time zone is Roswell in?
Roswell observes Eastern Time (EST/EDT), like all of Georgia.
Stay Safe & Explore More
- Verify an unknown caller in our Scam Alerts directory.
- Comparing nationwide numbers? See our Toll-Free Numbers guides.