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By 1995, the telephone subscriber base had experienced substantial growth, threatening the exhaustion of the numbering pool. Relief planning entailed the division of the numbering plan area to create a new area code, 573, for most areas outside of the St. Louis metropolitan area, which retained area
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code 314. The area code split became effective at day end of
January 7, 1996, with a permissive dialing period commencing until July 7, 1996, during which the new numbering plan area could be dialed with either area code.
96:, the state capital.The numbering plan area (NPA) extends across half of the width of the state, with the northeastern tip near the northeastern corner of the state, the
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for the relief action, beginning with a permissive dialing period of six months on August 26, 2023 (as 573 was not affected by the 2021 requirement to change to
140:. Area code 314 identified the eastern part of the state, from the northeast corner of the state at the Illinois border along a southwestern line near
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for the 573 numbering plan area, effective March 24, 2024. On June 17, 2022, the NANP Administrator assigned
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in 1947, Missouri was divided into two numbering plan areas (NPAs), which received the area codes 314 and
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On May 1, 2022, the
Missouri Public Service Commission (MPSC) approved an all-services distributed
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as the southwestern tip. They also serves all of southeastern
Missouri (including the
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to the center of the state, and continuing southeast into the east side of the
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132:(AT&T) created a universal North American telephone numbering plan for
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area to the
Arkansas state line. The largest city of the area code was
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311:"NANP-Split of 314 (Missouri) Numbering Plan Area (NPA)"
112:. 573 was created on January 7, 1996, in a split of
663:Telecommunications-related introductions in 1996
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48:(NANP) for most of the eastern half of the
130:American Telephone and Telegraph Company
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156:on the Mississippi river in the east.
60:area, including the state capital of
27:Area code in Missouri, United States
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177:988 Suicide & Crisis Lifeline
175:due to the implementation of the
366:NANPA area code map of Missouri
108:area) and areas adjacent to the
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653:Area codes in the United States
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84:. The largest cities are
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90:University of Missouri
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134:Operator Toll Dialing
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344:. NANPA. 2022-06-17
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94:Jefferson City
88:, home to the
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629:38.5°N 92.0°W
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346:. Retrieved
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322:. Retrieved
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223:Poplar Bluff
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183:Service area
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634:38.5; -92.0
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290:Waynesville
150:West Plains
647:Categories
348:2022-12-07
324:2022-12-07
297:References
203:Farmington
50:U.S. state
42:area codes
561:Tennessee
280:St. James
250:Centralia
245:Camdenton
154:St. Louis
128:When the
58:St. Louis
592:Arkansas
538:Kentucky
491:Illinois
440:573/235
373:Missouri
285:Sullivan
228:Sikeston
208:Hannibal
193:Columbia
142:Columbia
102:Doniphan
86:Columbia
82:Sikeston
74:Hannibal
66:Columbia
54:Missouri
620:92°00′W
617:38°30′N
604:870/327
569:615/629
542:270/364
527:847/224
523:815/779
515:708/464
511:618/730
507:630/331
499:309/861
495:217/447
482:870/327
465:314/557
457:270/364
453:618/730
435:816/975
414:217/447
397:816/975
385:573/235
377:314/557
270:Jackson
265:Hermann
124:History
44:in the
275:Mexico
260:Fulton
255:Dexter
92:, and
80:, and
474:South
406:North
342:(PDF)
314:(PDF)
218:Rolla
78:Rolla
445:East
423:West
144:and
600:501
596:479
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573:731
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519:773
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478:417
461:731
449:636
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427:660
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179:).
138:816
52:of
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20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
