One of the most affluent and highly educated suburbs in the Southeast, Johns Creek is a planned community in north Fulton County that incorporated as a city in 2006. As part of the Atlanta metro, it shares the region’s four overlapping area codes. This guide breaks down Johns Creek’s 404, 770, 678, and 470 codes, the required 10-digit dialing, major ZIP codes, and local scam warnings.
Johns Creek 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
Johns Creek’s area codes cover a suburb organized around master-planned neighborhoods and the Medlock Bridge corridor. Upscale communities like St. Ives and the Country Club of the South sit alongside the sprawling Technology Park, one of the metro’s largest suburban office and research campuses.
The same codes reach the Newtown and Ocee areas, the shopping and dining along State Bridge and McGinnis Ferry roads, and the residential streets threading along the Chattahoochee River that forms the city’s northern edge. Because Johns Creek sits inside the Atlanta metro, its numbers share all four regional codes with the city and neighboring suburbs.
Local Dialing Rules & International Format
Johns Creek, 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 Johns Creek 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 Johns Creek’s core ZIP codes, including 30022, 30097, and 30005.
Spam & Scam Call Warnings in Johns Creek
Johns Creek residents report neighbor-spoofing robocalls faking a local 770 prefix, plus tech-support and fake-investment scams targeting the area’s affluent, professional households. Fake utility-shutoff and delivery scams are also common.
| 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 Johns Creek, GA?
Johns Creek uses metro Atlanta’s four area codes: 404, 770, 678, and 470.
Does Johns Creek have the same area code as Roswell?
Yes. Johns Creek and Roswell both share the metro Atlanta 404/770/678/470 codes.
Do I need to dial 10 digits in Johns Creek?
Yes. All local calls in Johns Creek and metro Atlanta require 10-digit dialing.
What time zone is Johns Creek in?
Johns Creek 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.