Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 321J HD CARRIER LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
272-249 A Scranton PA SCTNPA01XVX  232      
272-249 8 Scranton PA SCTNPA01XVX  232   2020-11-22   
272-249 9 Scranton PA SCTNPA01XVX  232   2020-11-22   
272-304 A Honesdale PA SCTNPA01XWX  232      
272-304 8 Honesdale PA SCTNPA01XWX  232   2022-12-26   
272-304 9 Honesdale PA SCTNPA01XWX  232   2022-12-26   
272-461 1 Williamsport PA   232   2026-02-20   
272-461 2 Williamsport PA   232   2026-02-20   
279-200 A Sacramento: Main DA CA SCRMCA0105Z  726      
279-200 9 Sacramento: Main DA CA SCRMCA0105Z  726   2019-06-10   
283-333 4 Cincinnati OH CNCNOHWSXAZ  922   2024-01-20   
283-333 5 Cincinnati OH CNCNOHWSXAZ  922   2024-01-20   
283-777 8 Waynesville OH CNCNOHWSXAZ  922   2023-12-18   
283-888 3 Hamilton OH CNCNOHWSXAZ  922   2023-11-19   
283-999 3 Little Miami OH CNCNOHWSXAZ  922   2023-12-14   
301-205 1 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-05-14   
301-205 2 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-05-14   
301-205 3 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-05-14   
301-205 4 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-05-14   
301-205 6 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-05-14   
301-205 7 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-05-14   
301-205 8 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-05-14   
301-205 9 Washington Zone 14 (Baltimore LATA) MD   238   2016-05-14   
301-307 8 Washington Zone 13 (Baltimore LATA) MD BLTMMDCHXVX  238   2020-05-01   
301-612 0 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-09-05   
301-612 1 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-09-05   
301-612 2 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-05-14   
301-612 3 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-09-05   
301-612 4 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-09-05   
301-612 5 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-09-05   
301-612 7 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-09-05   
301-612 8 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-09-05   
301-612 9 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-09-05   
301-889 1 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-09-05   
301-889 3 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-09-05   
301-889 4 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-09-05   
301-889 5 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-09-05   
301-889 6 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-09-05   
301-889 7 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2016-09-05   
301-973 4 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  238   2020-05-02   
302-617 A Wilmington DE PHLAPAMKX7X  228      
302-617 8 Wilmington DE PHLAPAMKX7X  228   2023-11-30   
302-617 9 Wilmington DE PHLAPAMKX7X  228   2023-11-30   
302-637 6 Delaware City DE   228   2025-10-19   
302-637 7 Delaware City DE   228   2025-10-19   
303-303 A Denver CO   656      
303-303 0 Denver CO DNVRCOMA32Z  656   2024-10-27   
303-303 1 Denver CO DNVRCOMA32Z  656   2024-10-27   
303-303 2 Denver CO DNVRCOMA32Z  656   2024-10-27   
303-303 3 Denver CO DNVRCOMA32Z  656   2024-10-27   

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

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