Area code
615
615 is a United States area code. Under the North American Numbering Plan it belongs to Tennessee, which has 8 area codes in total.
Validate a number in 615
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 615 at a glance
NANPA lists 780 central office codes (prefixes) in use in area code 615, held by 34 holders across 50 rate centers.
| Fact | Value |
|---|---|
| In service since | 1954-01-01 |
| Time zone | Central (C) |
| Assigned overlays | 629 (2015-03-28) |
| Prefixes in use | 780 |
| Pooled prefixes | 503 (64%) |
| Rate centers | 50 |
| Companies holding prefixes | 34 |
| Assignment dates on file | 2001-01-22 to 2024-11-22 (242 prefixes) |
| ZIP codes in its places | 70 |
Rate centers in area code 615
The largest rate center is NASHVILLE, with 441 prefixes (57%).
| Rate center | Prefixes | Share |
|---|---|---|
| NASHVILLE | 441 | 57% |
| MURFREESBO | 48 | 6% |
| FRANKLIN | 36 | 5% |
| GOODLETSVL | 18 | 2% |
| SMITHVILLE | 16 | 2% |
| SMYRNA | 16 | 2% |
| HENDERSNVL | 15 | 2% |
| GALLATIN | 14 | 2% |
| 42 other rate centers | 176 | 23% |
Who holds the prefixes in 615
South Central Bell Tel holds the most prefixes, 223 (29%). 64% of the prefixes are pooled, which means their thousands-blocks can belong to different companies.
| Holder | Prefixes | Share |
|---|---|---|
| South Central Bell Tel | 223 | 29% |
| Verizon Wireless | 88 | 11% |
| New Cingular Wireless PCS | 80 | 10% |
| Paetec Itel | 64 | 8% |
| Powertel Nashville Licenses | 52 | 7% |
| Level 3 Communications | 51 | 7% |
| 28 other carriers | 222 | 28% |
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 615
- 1954-01-01 Area code 615 went into service.
- 1995-09-11 Area code 423 went into service and names 615 as its parent.
- 1997-09-15 Area code 931 went into service and names 615 as its parent.
- 2015-03-28 Area code 629 went into service as an overlay in the same area as 615.
Area codes nearest to 615
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 615
70 ZIP codes fall in places that have a rate center in this area code.
| Place | ZIP codes |
|---|---|
| Nashville, TN | 39 |
| Franklin, TN | 5 |
| Lebanon, TN | 3 |
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 615 numbers
4,056 FCC complaints are on file for 3,352 numbers in 615, most often filed as "Unwanted Calls". These are unverified consumer reports.
| Year of latest complaint | Numbers |
|---|---|
| 2023 | 201 |
| 2024 | 273 |
| 2025 | 157 |
Other area codes in Tennessee
Tennessee is one state with 8 area codes in the NANPA table. 615 is one of them.
Next to 615 in the numbering table
These are the codes just before and after 615 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 615 was first assigned in Tennessee. 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 Tennessee next to a 615 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 615
Where is area code 615?
NANPA assigns area code 615 to Tennessee, United States.
In which state does area code 615 sit?
Tennessee. 615 is one of 8 area codes the NANPA table assigns to the state.
Which places does area code 615 cover?
The places with the most ZIP codes among the rate centers in 615 are Nashville, TN, Franklin, TN and Lebanon, TN. The rate center list on this page shows all of them.
Who owns area code 615?
NANPA assigns area codes. Within 615, South Central Bell Tel holds the most prefixes, 223 prefixes or 29%.
Which time zone does 615 use?
The NANPA NPA report lists the time zone for 615 as Central (C).
What year did 615 enter service?
The NANPA NPA report gives an in-service date of 1954-01-01, so 615 has been in use since 1954.
Does area code 615 have an overlay?
Yes. 629 (in service 2015-03-28) shares the same area with 615, so numbers from all of them are local to each other.
Which area codes are nearest to 615?
The area codes closest to 615, measured between the centers of the ZIP code places they serve, are 931 (about 37 miles), 270 (about 79 miles), 364 (about 84 miles), 731 (about 119 miles) and 938 (about 124 miles).
How many prefixes does area code 615 have?
NANPA's report dated 2026-10-17 lists 780 prefixes in service in 615, spread over 50 rate centers and 34 holders.
Are there complaints about 615 numbers?
The FCC data on file has 4,056 complaints for 3,352 numbers in 615. 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.