Area code 309 is the telephonearea code serving the state of Illinois. It covers Peoria, Moline, Rock Island, Galesburg and parts of central western Illinois. The telephone or phone (Greek: tele = far away and phone = voice) is a telecommunications device which is used to transmit and receive sound (most commonly voice and speech) across distance. ... A telephone numbering plan is a system that allows subscribers to make and receive telephone calls across long distances. ... Official language(s) English Capital Springfield Largest city Chicago Area Ranked 25th - Total 57,918 sq mi (149,998 km²) - Width 210 miles (340 km) - Length 390 miles (629 km) - % water 4. ... Peoria is the name of the Peoria tribe of Native Americans and the name of a number of places in the United States of America: Peoria, Arizona Peoria, Illinois Peoria County, Illinois Peoria, Oregon This is a disambiguation page — a navigational aid which lists other pages that might otherwise share... Moline is the name of several places in the United States of America: Moline, Illinois Moline, Michigan This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... Rock Island may refer to: Rock Island, a census-designated place in Broward County, Florida. ... Galesburg is the name of some places in the United States of America: Galesburg, Illinois Galesburg, Michigan This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...
The telephoneareacode 773 was formed in the city of Chicago, Illinois, USA in 1996.
The entire city of Chicago—and all of Chicagoland—were originally areacode 312, but eventually the city itself was split between 312 in the Downtown/Loop and surrounding areas, and 773, comprising the vast physical majority of the city and all outlying areas within city limits.
The areacode has also been popularized by a series of t-shirts with the slogan "773 FOREVER", a reflection of residents' strong sense of pride and attachment to the area and their identification with urban living over the suburbs.