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
209-972 A Manteca CA MNTCCAXGVMD  738      
209-972 8 Manteca CA MNTCCAXGVMD  738   2022-11-06   
209-972 9 Manteca CA MNTCCAXGVMD  738   2022-11-06   
210-576 8 San Antonio TX   566   2025-08-14   
210-940 A San Antonio TX SNANTXCA86Z  566      
210-940 9 San Antonio TX SNANTXCA86Z  566   2020-04-12   
213-205 9 Los Angeles: DA 07 CA LSANCARCY1X  730   2016-06-02   
213-274 7 Los Angeles: DA 01 CA LSANCARCY1X  730   2016-06-02   
213-274 8 Los Angeles: DA 01 CA LSANCARCY1X  730   2016-06-02   
213-274 9 Los Angeles: DA 01 CA LSANCARCY1X  730   2016-06-02   
213-372 6 Los Angeles: DA 01 CA   730   2016-08-26   
213-372 7 Los Angeles: DA 01 CA   730   2016-08-26   
213-372 8 Los Angeles: DA 01 CA LSANCARCY1X  730   2016-08-26   
213-699 8 Los Angeles: DA 07 CA LSANCARCY1X  730   2016-06-02   
215-274 3 Philadelphia Suburban Zone 33 PA   228   2016-05-20   
215-274 6 Philadelphia Suburban Zone 33 PA   228   2016-05-20   
215-315 2 Philadelphia Suburban Zone 39 PA   228   2016-05-20   
215-315 6 Philadelphia Suburban Zone 39 PA   228   2016-05-20   
215-347 7 Philadelphia Suburban Zone 39 PA   228   2016-05-20   
215-347 8 Philadelphia Suburban Zone 39 PA   228   2016-05-20   
215-358 9 Philadelphia Suburban Zone 33 PA   228   2016-05-20   
215-367 0 Philadelphia Suburban Zone 33 PA   228   2016-05-20   
215-367 6 Philadelphia Suburban Zone 33 PA   228   2016-05-20   
215-367 8 Philadelphia Suburban Zone 33 PA   228   2016-05-20   
215-371 0 Philadelphia Suburban Zone 33 PA PHLAPAMKX7X  228   2016-05-20   
215-371 6 Philadelphia Suburban Zone 33 PA   228   2016-05-20   
215-394 2 Philadelphia Suburban Zone 39 PA   228   2016-05-20   
215-394 6 Philadelphia Suburban Zone 39 PA   228   2016-05-20   
215-394 9 Philadelphia Suburban Zone 39 PA   228   2016-05-20   
215-420 6 Philadelphia Suburban Zone 39 PA   228   2016-05-20   
217-354 0 Oakwood IL   370   2025-10-11   
217-866 7 Champaign-Urbana IL   370   2025-10-11   
217-900 7 Springfield IL   374   2025-10-11   
217-951 0 Mattoon IL   976   2026-01-20   
217-986 7 Springfield IL   374   2025-10-11   
217-991 9 Champaign-Urbana IL   370   2025-10-11   
218-619 A Duluth MN DLTHMNEHJMD  624      
218-619 8 Duluth MN DLTHMNEHJMD  624   2023-05-11   
218-619 9 Duluth MN DLTHMNEHJMD  624   2023-05-11   
223-240 A Harrisburg City Zone-1 PA HRBGPAGU8MD  226      
223-240 8 Harrisburg City Zone-1 PA HRBGPAGU8MD  226   2020-11-22   
223-240 9 Harrisburg City Zone-1 PA HRBGPAGU8MD  226   2020-11-22   
223-256 A Dillsburg PA HRBGPAGU9MD  226      
223-256 8 Dillsburg PA HRBGPAGU9MD  226   2021-05-29   
223-256 9 Dillsburg PA HRBGPAGU9MD  226   2021-05-29   
223-384 3 York PA   226   2026-02-20   
223-384 4 York PA   226   2026-02-20   
224-646 2 Northbrook IL   358   2025-10-10   
225-366 1 Baton Rouge LA   492   2025-08-15   
225-512 A Baton Rouge LA BTRGLA12XQZ  492      

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

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