─────── § 04. NPA RECORD · 630 · FOLIO 0432 OF 0801 ──────────────
630
United States NPA Record
Area code serving the western suburbs of Chicago, Illinois, created in 1996 as a split from 708.
Area code serving the western suburbs of Chicago, Illinois, created in 1996 as a split from 708.
IN SERVICEFirst record · 1996
§ 04.05Event Summary
split · 3mandatory dialing · 1
§ 04.06
Documentary Record · 7 events
CHRONOLOGICAL ORDER
1996-01-01
split
708 split to create 630
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1996-08-03
split
NPA 630 created from split of 708
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1996-10-11
split
Area codes 847 and 630 split from 708
Area codes 847 and 630 were created on October 11, 1996, by splitting the northern and western suburbs respectively from area code 708.
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2006-11-27
NPA 331 overlay on 630 announced
NPA 331 to Overlay NPA 630 (Illinois)
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2007-07-06
NPA 331 overlay on 630 announced
NPA 331 to Overlay NPA 630 (Illinois)
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2007-10-07
NPA 331 overlays 630
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2007-10-07
mandatory dialing
Mandatory ten-digit dialing in 630/331 overlay area
Ten-digit dialing became mandatory in the 630/331 overlay area on October 7, 2007, coinciding with the introduction of area code 331.
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