─────── § 04. NPA RECORD · 818 · FOLIO 0620 OF 0801 ──────────────
818
United States NPA Record
Area code for the San Fernando Valley region of Los Angeles County, California, created in 1984 from a split of 213 and later overlaid by 747 in 2009.
Area code for the San Fernando Valley region of Los Angeles County, California, created in 1984 from a split of 213 and later overlaid by 747 in 2009.
IN SERVICEFirst record · 1983
§ 04.05Event Summary
split · 4mandatory dialing · 3jeopardy · 1other · 1permissive dialing · 1relief planned · 1
§ 04.06
Documentary Record · 13 events
CHRONOLOGICAL ORDER
1983-01-01
split
NPA 818 split from 213
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1984-01-01
split
NPA 818 split from 213
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1984-01-07
split
NPA 818 split from 213
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1997-01-02
other
NANP-Split of 818 (California) Numbering Plan Area (NPA)
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1997-06-14
split
NPA 626 split from 818
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1998-07-24
jeopardy
Extraordinary Jeopardy Procedures for 818 NPA in California
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2008-04-24
relief planned
CPUC decision to overlay 747 on 818
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2008-05-07
NPA 747 overlay on 818 announced
NPA 747 to Overlay NPA 818 (California)
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2008-10-11
permissive dialing
Permissive dialing period for 818/747 overlay
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2009-04-15
mandatory dialing
Mandatory ten-digit dialing for 818/747 overlay
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2009-04-18
mandatory dialing
Mandatory ten-digit dialing for 818/747 overlay
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2009-05-18
NPA 747 overlays 818
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2009-05-18
mandatory dialing
Mandatory ten-digit dialing begins for 818/747 overlay
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