Area code
812
812 is a United States area code. Under the North American Numbering Plan it belongs to Indiana, which has 8 area codes in total.
Validate a number in 812
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 812 at a glance
NANPA lists 784 central office codes (prefixes) in use in area code 812, held by 50 holders across 172 rate centers.
| Fact | Value |
|---|---|
| In service since | 1947-01-01 |
| Time zone | EC |
| Assigned overlays | 930 (2015-03-07) |
| Prefixes in use | 784 |
| Pooled prefixes | 570 (73%) |
| Rate centers | 172 |
| Companies holding prefixes | 50 |
| Assignment dates on file | 2001-02-15 to 2024-03-13 (289 prefixes) |
| ZIP codes in its places | 171 |
Rate centers in area code 812
| Rate center | Prefixes | Share |
|---|---|---|
| EVANSVILLE | 86 | 11% |
| BLOOMINGTN | 50 | 6% |
| TERREHAUTE | 49 | 6% |
| NEW ALBANY | 32 | 4% |
| COLUMBUS | 28 | 4% |
| SEYMOUR | 22 | 3% |
| VINCENNES | 18 | 2% |
| JASPER | 17 | 2% |
| 164 other rate centers | 482 | 61% |
Who holds the prefixes in 812
Indiana Bell Tel CO holds the most prefixes, 132 (17%). 73% of the prefixes are pooled, which means their thousands-blocks can belong to different companies.
| Holder | Prefixes | Share |
|---|---|---|
| Indiana Bell Tel CO | 132 | 17% |
| Frontier North | 102 | 13% |
| New Cingular Wireless PCS | 86 | 11% |
| Verizon Wireless | 80 | 10% |
| Level 3 Communications | 49 | 6% |
| Paetec Itel | 39 | 5% |
| 44 other carriers | 296 | 38% |
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 812
- 1947-01-01 Area code 812 went into service.
- 2015-03-07 Area code 930 went into service as an overlay in the same area as 812.
Area codes nearest to 812
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 812
171 ZIP codes fall in places that have a rate center in this area code.
| Place | ZIP codes |
|---|---|
| Evansville, IN | 32 |
| Terre Haute, IN | 8 |
| Columbus, IN | 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 812 numbers
2,523 FCC complaints are on file for 2,220 numbers in 812, most often filed as "Unwanted Calls". These are unverified consumer reports.
| Year of latest complaint | Numbers |
|---|---|
| 2023 | 64 |
| 2024 | 80 |
| 2025 | 59 |
Other area codes in Indiana
Indiana is one state with 8 area codes in the NANPA table. 812 is one of them.
Next to 812 in the numbering table
These are the codes just before and after 812 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 812 was first assigned in Indiana. 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 Indiana next to a 812 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 812
Where is area code 812?
NANPA assigns area code 812 to Indiana, United States.
In which state does area code 812 sit?
Indiana. 812 is one of 8 area codes the NANPA table assigns to the state.
Which places does area code 812 cover?
The places with the most ZIP codes among the rate centers in 812 are Evansville, IN, Terre Haute, IN and Columbus, IN. The rate center list on this page shows all of them.
Who owns area code 812?
NANPA assigns area codes. Within 812, Indiana Bell Tel CO holds the most prefixes, 132 prefixes or 17%.
Which time zone does 812 use?
The NANPA NPA report lists the time zone for 812 as EC.
What year did 812 enter service?
The NANPA NPA report gives an in-service date of 1947-01-01, so 812 has been in use since 1947.
Does area code 812 have an overlay?
Yes. 930 (in service 2015-03-07) shares the same area with 812, so numbers from all of them are local to each other.
Which area codes are nearest to 812?
The area codes closest to 812, measured between the centers of the ZIP code places they serve, are 502 (about 76 miles), 364 (about 89 miles), 317 (about 91 miles), 463 (about 91 miles) and 270 (about 100 miles).
How many prefixes does area code 812 have?
NANPA's report dated 2026-10-17 lists 784 prefixes in service in 812, spread over 172 rate centers and 50 holders.
Are there complaints about 812 numbers?
The FCC data on file has 2,523 complaints for 2,220 numbers in 812. 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.