─────── § 04. NPA RECORD · 210 · FOLIO 0012 OF 0801 ──────────────
210
United States NPA Record
Area code 210 serves most of the city of San Antonio, Texas, including its innermost suburbs.
Area code 210 serves most of the city of San Antonio, Texas, including its innermost suburbs. It was split from 512 in 1992 and later surrounded by area code 830.
IN SERVICEFirst record · 1992
§ 04.05Event Summary
split · 5mandatory dialing · 2other · 2relief planned · 2activated · 1jeopardy · 1permissive dialing · 1
§ 04.06
Documentary Record · 17 events
CHRONOLOGICAL ORDER
1992-01-01
split
NPA 210 split from 512
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1992-11-01
split
NPA 210 split from 512
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1996-12-02
jeopardy
Declaration of Jeopardy Situation in NPA 210 (Texas)
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1997-01-22
other
NANP-Split of 210 (Texas) Numbering Plan Area (NPA)
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1997-05-25
split
NPA 956 split from 210
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1997-06-10
other
Extraordinary NPA-Specific Conservation Procedures for 210 NPA (Texas)
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1997-07-07
split
NPA 830 split from 210
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1997-07-07
split
NPA 830 and 956 splits from 210
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2015-06-01
relief planned
Planning for 726 overlay on 210 begins
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2016-07-21
relief planned
726 overlay for 210 announced
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2016-08-01
726 overlay announced for 210
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2016-08-23
NPA 726 overlay on 210 announced
NPA 726 to Overlay NPA 210 (Texas)
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2017-03-01
permissive dialing
Permissive dialing begins for 210/726 overlay
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2017-09-01
mandatory dialing
Mandatory 10-digit dialing for 210/726 overlay
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2017-09-30
mandatory dialing
Mandatory ten-digit dialing begins for 210/726 overlay
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2017-10-01
NPA 726 overlay activated on 210
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2017-10-01
activated
726 overlay activated on 210
Area code 726 was activated in October 2017 as an overlay to 210, providing additional numbering resources for San Antonio and most of Bexar County.
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