Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 516C AT&T CORP.

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
574-520 A South Bend IN SBNDIN05X4X  332      
574-520 1 South Bend IN SBNDIN05X4X  332      
574-635 A Culver IN SBNDIN05X4X  332      
574-635 7 Culver IN SBNDIN05X4X  332   2010-01-07   
574-703 A South Bend IN SBNDIN05X4X  332      
574-703 7 South Bend IN SBNDIN05X4X  332   2013-12-21   
574-742 A Osceola IN SBNDIN05X4X  332      
574-742 7 Osceola IN SBNDIN05X4X  332   2006-06-30   
580-218 5 Breckinridge OK OKCYOKCEXXY  536   2011-08-25   
580-228 7 Waurika OK OKCYOKCEXXY  536   2013-02-17   
580-232 5 Cache OK OKCYOKCEXXY  536   2011-08-25   
580-238 7 Marietta OK OKCYOKCEXXY  536   2015-04-03   
580-245 7 Idabel OK OKCYOKCEXXY  536   2015-04-03   
580-258 3 Coalgate OK OKCYOKCEXXY  536   2015-05-29   
580-262 5 Blackwell OK OKCYOKCEXXY  536   2011-02-05   
580-264 5 Healdton OK OKCYOKCEXXY  536   2011-08-25   
580-268 5 Marland OK OKCYOKCEXXY  536   2012-01-25   
580-271 7 Antlers OK OKCYOKCEXXY  536   2015-04-03   
580-288 5 Kremlin OK OKCYOKCEXXY  536   2011-08-25   
580-290 5 Woodward OK OKCYOKCEXXY  536   2015-04-03   
580-292 7 Indiahoma OK OKCYOKCEXXY  536   2022-12-12   
580-325 5 Hillsdale OK OKCYOKCEXXY  536   2011-08-25   
580-329 5 Carrier OK OKCYOKCEXXY  536   2011-08-25   
580-331 5 Clinton OK OKCYOKCEXXY  536   2011-02-05   
580-339 8 Elk City OK OKCYOKCEXXY  536   2011-02-05   
580-345 5 Soper OK OKCYOKCEXXY  536   2011-08-25   
580-362 9 Newkirk OK OKCYOKCEXXY  536   2011-02-05   
580-367 7 Caddo OK OKCYOKCEXXY  536   2013-12-20   
580-368 3 Davis OK OKCYOKCEXXY  536   2011-02-05   
580-373 5 Bessie OK OKCYOKCEXXY  536   2015-04-27   
580-379 3 Altus OK OKCYOKCEXXY  536   2011-05-30   
580-382 4 Ponca City OK OKCYOKCEXXY  536   2011-02-05   
580-387 5 Tishomingo OK OKCYOKCEXXY  536   2013-02-17   
580-395 7 Medford OK OKCYOKCEXXY  536   2011-02-05   
580-396 7 Morrison OK OKCYOKCEXXY  536   2015-04-03   
580-408 7 Rattan OK OKCYOKCEXXY  536   2022-12-12   
580-412 7 Fairview OK OKCYOKCEXXY  536   2022-12-12   
580-417 A Fairmont OK OKCYOKCEXXY  536      
580-417 5 Fairmont OK OKCYOKCEXXY  536   2011-08-25   
580-453 A Ada OK OKCYOKCEXXY  536      
580-453 7 Ada OK OKCYOKCEXXY  536   2010-01-28   
580-456 5 Roff OK OKCYOKCEXXY  536   2011-02-05   
580-489 A Fort Towson OK OKCYOKCEXXY  536      
580-489 7 Fort Towson OK OKCYOKCEXXY  536   2022-12-19   
580-509 5 Atoka OK OKCYOKCEXXY  536   2011-08-25   
580-535 7 Granite OK OKCYOKCEXXY  536   2011-02-05   
580-540 2 Enid OK OKCYOKCEXXY  536   2011-02-05   
580-550 7 Walters OK OKCYOKCEXXY  536   2024-10-07   
580-563 5 Blair OK OKCYOKCEXXY  536   2011-08-25   
580-565 5 Kingston OK OKCYOKCEXXY  536   2011-08-25   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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