| District of Indiana area codes: 219 | |
|---|---|
| Country | United States |
| State/Province | Indiana |
| Major City | Valparaiso |
| Time Zone | Central (UTC-06:00) |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 219-433 | Lake | Gary, IN | Sprint Spectrum L.p. |
| 219-440 | Lake | Dyer, IN | Level 3 Communications |
| 219-448 | La Porte | Westville, IN | T-mobile Usa |
| 219-455 | Lake | Gary, IN | T-mobile Usa |
| 219-462 | Porter | Valparaiso, IN | Frontier North |
| 219-464 | Porter | Valparaiso, IN | Frontier North |
| 219-465 | Porter | Valparaiso, IN | Frontier North |
| 219-472 | Lake | Merrillville, IN | Level 3 Communications |
| 219-473 | Lake | Whiting, IN | Ameritech Indiana |
| 219-474 | Newton | Kentland, IN | United Tel. Co. Of Indiana DBA Centurylink |
| 219-476 | Porter | Valparaiso, IN | Frontier North |
| 219-477 | Porter | Valparaiso, IN | Frontier North |
| 219-484 | Lake | Gary, IN | T-mobile Usa |
| 219-487 | Lake | Gary, IN | T-mobile Usa |
| 219-488 | Lake | Crown Point, IN | Broadwing Communications |
| 219-506 | Newton | Morocco, IN | Fbn Indiana-in |
| 219-507 | Jasper | Wheatfield, IN | Level 3 Communications |
| 219-508 | Porter | Valparaiso, IN | Cellco Partnership DBA Verizon Wireless |
| 219-509 | Porter | Chesterton, IN | Fbn Indiana-in |
| 219-510 | Porter | Valparaiso, IN | Fbn Indiana-in |
There are 348 prefixes, In the code area, the major cities are East Chicago, IN;Gary, IN;Hammond, IN;Highland, IN. The major city is Valparaiso.