Area code
678
678 is a United States area code. Under the North American Numbering Plan it belongs to Georgia, which has 10 area codes in total.
Validate a number in 678
Paste a full number and the tool checks it against the numbering plan. It returns the standard formats, the line type the plan assigns and the area code region.
Digits with or without punctuation work. Numbers outside the US are read with the +country code.
Area code 678 at a glance
NANPA lists 785 central office codes (prefixes) in use in area code 678, held by 26 holders across 42 rate centers.
| Fact | Value |
|---|---|
| In service since | 1998-01-06 |
| Time zone | Eastern (E) |
| Assigned overlays | 404 (1947-01-01), 770 (1995-08-01), 470 (2010-02-26), 943 (2022-03-15) |
| Prefixes in use | 785 |
| Pooled prefixes | 620 (79%) |
| Rate centers | 42 |
| Companies holding prefixes | 26 |
| Assignment dates on file | 2001-01-02 to 2023-12-05 (192 prefixes) |
| ZIP codes in its places | 140 |
Rate centers in area code 678
| Rate center | Prefixes | Share |
|---|---|---|
| ATLANTA NE | 285 | 36% |
| ATLANTA NW | 130 | 17% |
| ATLANTA | 95 | 12% |
| ATLANTA SO | 62 | 8% |
| GAINESVL | 36 | 5% |
| NEWNAN | 18 | 2% |
| BUFORD | 15 | 2% |
| CUMMING | 15 | 2% |
| 34 other rate centers | 129 | 16% |
Who holds the prefixes in 678
Paetec Itel holds the most prefixes, 159 (20%). 79% of the prefixes are pooled, which means their thousands-blocks can belong to different companies.
| Holder | Prefixes | Share |
|---|---|---|
| Paetec Itel | 159 | 20% |
| Southern Bell Tel & Tel | 122 | 16% |
| Level 3 Communications | 94 | 12% |
| Mcimetro Access Transmission Services | 84 | 11% |
| Powertel Atlanta Licenses | 63 | 8% |
| Metropcs | 56 | 7% |
| 20 other carriers | 207 | 26% |
A prefix holder is the company a code was assigned to, not necessarily a number's current carrier, because numbers can be ported to another company. Find which carrier a number is on, or browse the prefix holders.
History of area code 678
- 1998-01-06 Area code 678 went into service.
- 2010-02-26 Area code 470, named as the parent of 678 in the NANPA report, was in service.
- 2010-02-26 Area code 470 went into service as an overlay in the same area as 678.
Area codes nearest to 678
Distance is measured between the centers of the ZIP code places each area code serves, so it is a rough guide.
Overlay codes in the same area
ZIP codes in area code 678
140 ZIP codes fall in places that have a rate center in this area code.
| Place | ZIP codes |
|---|---|
| Atlanta, GA | 92 |
| Carrollton, GA | 5 |
| Newnan, GA | 4 |
A ZIP code and an area code are unrelated systems. A ZIP code can sit in more than one area code, and an area code spans many ZIP codes.
Complaints on file for 678 numbers
4,315 FCC complaints are on file for 3,264 numbers in 678, most often filed as "Unwanted Calls". These are unverified consumer reports.
| Year of latest complaint | Numbers |
|---|---|
| 2023 | 135 |
| 2024 | 195 |
| 2025 | 149 |
Other area codes in Georgia
Georgia is one state with 10 area codes in the NANPA table. 678 is one of them.
Next to 678 in the numbering table
These are the codes just before and after 678 when all are sorted by number. They are neighbours on the list, not necessarily on the map.
What the area code does and does not tell you
A number that starts with 678 was first assigned in Georgia. That is a fact about where the number began, and it is a useful hint when you check a form entry, for example a billing address in Georgia next to a 678 phone number.
It does not show where the person is today. A number stays with its owner after a move or a change of provider (number portability), and mobile numbers travel with the handset. The area code also cannot tell you whether the line is active, who the carrier is, or whether the number is mobile or fixed: the plan shares those ranges. Read more about the area code, the numbering plan and line type.
Check numbers in bulk with the API
| Product | Credits | Docs |
|---|---|---|
| Phone Numbering-Plan Validation | 1 credit per valid number | API docs |
| Phone Intelligence (carrier and line status) | 1 credit per check (invalid numbers outside the US and Canada are free) | Product page |
Questions about area code 678
Where is area code 678?
NANPA assigns area code 678 to Georgia, United States.
In which state does area code 678 sit?
Georgia. 678 is one of 10 area codes the NANPA table assigns to the state.
Which places does area code 678 cover?
The places with the most ZIP codes among the rate centers in 678 are Atlanta, GA, Carrollton, GA and Newnan, GA. The rate center list on this page shows all of them.
Who owns area code 678?
NANPA assigns area codes. Within 678, Paetec Itel holds the most prefixes, 159 prefixes or 20%.
Which time zone does 678 use?
The NANPA NPA report lists the time zone for 678 as Eastern (E).
What year did 678 enter service?
The NANPA NPA report gives an in-service date of 1998-01-06, so 678 has been in use since 1998.
Does area code 678 have an overlay?
Yes. 404 (in service 1947-01-01), 770 (in service 1995-08-01), 470 (in service 2010-02-26) and 943 (in service 2022-03-15) share the same area with 678, so numbers from all of them are local to each other.
Which area codes are nearest to 678?
The area codes closest to 678, measured between the centers of the ZIP code places they serve, are 706 (about 30 miles), 762 (about 33 miles), 478 (about 98 miles), 256 (about 120 miles) and 938 (about 128 miles).
How many prefixes does area code 678 have?
NANPA's report dated 2026-10-17 lists 785 prefixes in service in 678, spread over 42 rate centers and 26 holders.
Are there complaints about 678 numbers?
The FCC data on file has 4,315 complaints for 3,264 numbers in 678. They are unverified consumer reports. A number with no complaints on file is not proven safe.
Area code assignments: North American Numbering Plan Administrator NPA report, file dated 10/17/2026, retrieved 2026-10-17. Source file. New codes are assigned several times a year. Prefixes, rate centers, holders, time zone, in-service date and overlays: NANPA central office code report dated 2026-10-17 and NPA report dated 2026-10-18. Complaints: FCC consumer complaints open data, fetched 2026-10-17. ZIP code places: Postal code places and coordinates: GeoNames (geonames.org), licensed CC BY 4.0.