Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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OCN: 478J NUSO, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
254-362 1 Waco TX WACOTX01XJY  556   2020-10-27   
256-448 9 Francisco AL NSVLTNMTYOZ  470   2020-09-28   
256-819 A Huntsville AL HNVIALUNX9Z  477      
256-819 1 Huntsville AL HNVIALUNX9Z  477   2020-11-02   
256-906 7 Ranburne AL ATLNGAMQX8X  438   2020-09-28   
260-289 A Fort Wayne IN FTWYINXAKMD  334      
260-289 2 Fort Wayne IN FTWYINXAKMD  334   2021-11-28   
260-328 7 Fort Wayne IN FTWYINXAKMD  334   2023-12-29   
260-363 1 Fort Wayne IN FTWYINXAKMD  334   2024-06-14   
260-363 2 Fort Wayne IN FTWYINXAKMD  334   2024-06-14   
260-371 A Huntington IN FTWYINXAX9Y  334   2025-01-06   
260-371 1 Huntington IN FTWYINXAX9Y  334   2025-01-06   
262-222 9 North Antioch WI CHCGILWBXSZ  358   2024-01-01   
262-272 A North Antioch WI CHCGILWBXSZ  358      
262-272 1 North Antioch WI CHCGILWBXSZ  358   2020-10-27   
262-272 8 North Antioch WI CHCGILWBXSZ  358   2024-06-22   
262-435 1 North Antioch WI CHCGILWBXSZ  358   2024-01-01   
272-248 A Ashland (Schuylkill) PA ASLDPAALAMD  232      
272-248 1 Ashland (Schuylkill) PA ASLDPAALAMD  232   2020-12-26   
279-270 A Sacramento: North DA CA SCRMCACN9MD  726   2025-01-03   
279-270 1 Sacramento: North DA CA SCRMCACN9MD  726   2025-01-03   
283-209 6 Cincinnati OH CNCNOHWSXIZ  922   2023-12-03   
283-209 7 Cincinnati OH CNCNOHWSXIZ  922   2023-12-03   
283-222 4 Cincinnati OH CNCNOHWSXIZ  922   2024-07-13   
283-222 5 Cincinnati OH CNCNOHWSXIZ  922   2024-07-13   
302-551 A Wilmington DE PHLAPAMKXHX  228      
302-551 1 Wilmington DE PHLAPAMKXHX  228   2020-10-27   
309-803 A Canton IL PEORILPJXYZ  368      
309-803 1 Canton IL PEORILPJXYZ  368   2020-10-11   
309-961 A Bloomington IL BLTNILXD8MD  366   2025-01-06   
309-961 1 Bloomington IL BLTNILXD8MD  366   2025-01-06   
312-682 A Chicago Zone 01-Calumet IL CHCGILWBXSZ  358      
312-682 1 Chicago Zone 01-Calumet IL CHCGILWBXSZ  358   2020-07-16   
312-682 6 Chicago Zone 01-Calumet IL CHCGILWBXSZ  358   2020-08-07   
312-682 7 Chicago Zone 01-Calumet IL CHCGILWBXSZ  358   2020-08-07   
312-931 4 Chicago Zone 01-Franklin IL CHCGILWBXSZ  358   2024-07-10   
313-261 1 Detroit Zone 1 MI SFLDMIMK0MD  340   2023-12-11   
313-385 A Detroit Zone 1 MI SFLDMIMK0MD  340      
313-385 1 Detroit Zone 1 MI SFLDMIMK0MD  340   2020-06-20   
313-462 3 Detroit Zone 1 MI SFLDMIMK0MD  340   2024-07-10   
313-872 8 Detroit Zone 1 MI SFLDMIMK0MD  340   2023-12-11   
316-232 6 Wichita KS WCHTKSBRXDZ  532   2023-12-22   
316-234 3 Wichita KS WCHTKSBRXDZ  532   2023-12-22   
316-369 A Wichita KS WCHTKSBRXDZ  532      
316-369 1 Wichita KS WCHTKSBRXDZ  532   2020-10-27   
317-907 6 Indianapolis IN CFVLIN01GMD  336   2024-08-09   
317-907 7 Indianapolis IN CFVLIN01GMD  336   2024-08-09   
318-921 A Shreveport LA   486   2025-03-20   
318-921 1 Shreveport LA   486   2025-03-20   
319-503 A Cedar Rapids IA   635   2025-04-24   

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Last updated: Sun, 17 May 2026 03:26:51 UTC

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