Area Code Atlas

219 NPA Split; Creating 574 and 260 NPA's (Indiana)

Amended 219 NPA Split Creating 574 and 260 NPAs (Indiana)

Area code 219 split into 219, 260, and 574

On January 15, 2002, area code 219 was split into three parts due to number exhaustion. Northwest Indiana retained 219, north-central Indiana received 574, and northeast Indiana was assigned area code 260. This change was part of a three-way split to relieve number exhaustion.

Permissive dialing begins for area codes 574 and 260 after split from 219

Permissive dialing for area codes 574 and 260 began on January 15, 2002, following the split of area code 219. During this period, callers could use either the old or new area codes for affected numbers. After the January 15, 2002 split of northern Indiana, permissive dialing of 219 continued across the region until June 14, 2002.

Mandatory dialing for area codes 260, 574, and 219

Mandatory dialing became effective on June 14, 2002, for area codes 260 and 574 following their creation from the split of area code 219. The permissive dialing period for area codes 574, 260, and 219 ended on this date, requiring callers to use the correct area code for calls within the affected regions.

Mandatory dialing implemented for area codes 219, 260, and 574

Mandatory ten-digit dialing was implemented for area codes 219, 260, and 574 five months after the split on January 15, 2002.

Ten-digit dialing required in area code 574

Area code 574 transitioned to mandatory ten-digit dialing on October 24, 2021, due to the nationwide designation of 988 as the three-digit code for the National Suicide Prevention Lifeline. This change was necessary to resolve conflicts with existing seven-digit dialing in the area.