Area code 319 is a telephonearea code in theNorth American Numbering Plan (NANP) for the southeastern and east-central parts of theU.S. state ofIowa.

Major cities in the numbering plan area (NPA) includeBurlington,Cedar Falls,Cedar Rapids,Oelwein,Fort Madison,Iowa City,Keokuk,Mount Pleasant, andWaterloo.

When the first nationwide numbering plan was implemented in 1947, despite its relatively low population, Iowa was divided into three numbering plan areas (NPAs), with each border line running roughly in north–south directions.

Area code 319 was assigned to the eastern part, and stretched along the entire border withWisconsin andIllinois. By the end of the 20th century, the available telephone number pool was depleting rapidly because of the increase in mobile devices, demand for telephone lines for computer equipment, FAX machines, and other services. In late 2000 it was announced that a newarea code 563 would be assigned to northeastern Iowa. Cell phone service providers advocated anoverlay plan, so that it would not require reconfiguration of all cell phones in the area.

However, overlays were still a relatively new concept at the time, and were met with considerable resistance due to the requirements forten-digit dialing and mixing of area codes within the same area. In the end, the administrative decision was to implement a geographic split, in which the northeastern portion of the numbering plan area, includingBettendorf,Clinton,Davenport,Decorah,Dubuque andEldridge, receivedarea code 563. The new numbering plan configuration became operational in March 2001, and the new dialing procedures were mandatory as of December 2001.

Prior to October 2021, area code 319 had telephone numbers assigned for thecentral office code 988. In 2020,988 was designated nationwide as a dialing code for theNational Suicide Prevention Lifeline, which created a conflict for exchanges that permitseven-digit dialing. This area code was therefore scheduled to transition toten-digit dialing by October 24, 2021.^[1]

• List of Iowa area codes

• "Area Code Maps". NANPA.

• List of exchanges from AreaCodeDownload.com, 319 Area Code

• Area codes in the United States
• Area codes in Iowa
• Telecommunications-related introductions in 1947

• Articles with short description
• Short description is different from Wikidata