| District of Indiana area codes: 812 | |
|---|---|
| Country | United States |
| State/Province | Indiana |
| Major City | Evansville |
| Time Zone | Eastern |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 812-221 | Dearborn | Lawrenceburg, IN | Sprint Spectrum L.p. |
| 812-222 | Decatur | Greensburg, IN | Miles Communications Inc. DBA Enhanced Telecomm Co |
| 812-223 | Vigo | Terre Haute, IN | Omnipoint Communications Midwest Operations LLC |
| 812-224 | Spencer | Dale, IN | Windstream Norlight |
| 812-225 | Harrison | Corydon, IN | Powertel Kentucky Licenses |
| 812-226 | Switzerland | Vevay, IN | Level 3 Communications |
| 812-227 | Greene | Bloomfield, IN | New Cingular Wireless PCS - IL |
| 812-228 | Vanderburgh | Evansville, IN | Ameritech Indiana |
| 812-229 | Vigo | Terre Haute, IN | New Cingular Wireless PCS - IL |
| 812-230 | Vigo | Terre Haute, IN | Cellco Partnership DBA Verizon Wireless |
| 812-231 | Vigo | Terre Haute, IN | Frontier North |
| 812-232 | Vigo | Terre Haute, IN | Frontier North |
| 812-233 | Vigo | Terre Haute, IN | Ymax Communications Corp. |
| 812-234 | Vigo | Terre Haute, IN | Frontier North |
| 812-235 | Vigo | Terre Haute, IN | Frontier North |
| 812-236 | Vigo | Terre Haute, IN | New Cingular Wireless PCS - IL |
| 812-237 | Vigo | Terre Haute, IN | Frontier North |
| 812-238 | Vigo | Terre Haute, IN | Frontier North |
| 812-239 | Vigo | Terre Haute, IN | New Cingular Wireless PCS - IL |
| 812-240 | Vigo | Terre Haute, IN | Cellco Partnership DBA Verizon Wireless |
There are 744 prefixes, In the code area, the major cities are Bloomington, IN;Clarksville, IN;Columbus, IN;Evans. The major city is Evansville.