─────── § 04. NPA RECORD · 209 · FOLIO 0011 OF 0801 ──────────────
209
United States NPA Record
Area code created in 1958 from a split of area code 916, covering the southern part of the original 916 area including Fresno, Stockton, and Modesto.
Area code created in 1958 from a split of area code 916, covering the southern part of the original 916 area including Fresno, Stockton, and Modesto.
IN SERVICEFirst record · 1958
§ 04.05Event Summary
split · 2dialing change · 1jeopardy · 1mandatory dialing · 1other · 1permissive dialing · 1service expansion · 1
§ 04.06
Documentary Record · 10 events
CHRONOLOGICAL ORDER
1958-01-01
split
Area code 209 split from 916
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1997-04-28
jeopardy
Jeopardy status declared for area code 209
Area code 209 was placed in jeopardy status due to telephone number demand exceeding forecasts, triggering special conservation measures in April 1997.
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1997-11-06
other
NANP-Split of 209 (California) Numbering Plan Area (NPA)
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1998-11-14
split
NPA 559 split from 209
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1999-05-15
permissive dialing
Permissive dialing period ended for 559/209 split
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2002-01-01
service expansion
Number pooling enforced for NPAs 209 and 559
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2021-10-24
mandatory dialing
Mandatory 10-digit dialing implemented in Area Code 209
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2022-06-06
NPA 350 overlay on 209 announced
NPA 350 to Overlay NPA 209 (California)
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2022-11-28
NPA 350 overlay introduced for 209
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2022-11-28
dialing change
209/350 overlay launched without a permissive dialing period
Network preparation for the 209/350 overlay was expedited without a permissive dialing period because ten-digit dialing was already in effect in the region.
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