─────── § 04. NPA RECORD · 618 · FOLIO 0420 OF 0801 ──────────────
618
United States NPA Record
Area code 618 is one of the original North American area codes created in 1947, serving southern Illinois including cities such as Carbondale, East St.
Area code 618 is one of the original North American area codes created in 1947, serving southern Illinois including cities such as Carbondale, East St. Louis, and Belleville. It was expanded in 1954 to include most of Metro East of St. Louis.
IN SERVICEFirst record · 1947
§ 04.05Event Summary
boundary change · 2introduced · 1mandatory dialing · 1permissive dialing · 1reassigned · 1
§ 04.06
Documentary Record · 8 events
CHRONOLOGICAL ORDER
1947-01-01
introduced
NPA 618 established as an original area code
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1951-01-01
boundary change
Southern Metro East portion of 217 reassigned to 618
In 1951, a boundary shift reassigned most of the southern portion of Metro East from area code 217 to area code 618.
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1954-01-01
reassigned
Metro East of St. Louis reassigned from 217 to 618
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1954-01-01
boundary change
Metro East of St. Louis switched from 217 to 618
Most of the Metro East area of St. Louis changed from area code 217 to 618 in 1954, expanding the 618 numbering plan area.
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2021-04-24
permissive dialing
Permissive 10-digit dialing begins for 618
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2021-10-24
mandatory dialing
Mandatory 10-digit dialing for 618
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2022-06-15
NPA 730 overlay on 618 announced
NPA 730 to Overlay NPA 618 (Illinois)
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2023-07-07
NPA 730 overlays 618
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