─────── § 04. NPA RECORD · 350 · FOLIO 0152 OF 0801 ──────────────
350
United States NPA Record
Area code 350 is an overlay for the 209 numbering plan area in California, introduced in 2022 to address number exhaustion.
Area code 350 is an overlay for the 209 numbering plan area in California, introduced in 2022 to address number exhaustion.
IN SERVICEFirst record · 2022
§ 04.05Event Summary
dialing change · 1
§ 04.06
Documentary Record · 3 events
CHRONOLOGICAL ORDER
2022-06-06
NPA 350 overlay on 209 announced
NPA 350 to Overlay NPA 209 (California)
▸
2022-11-28
NPA 350 overlay introduced for 209
▸
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.
▸