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
209-590 9 Snelling CA MNTCCAXGSMD  738   2016-08-26   
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   
209-994 7 Ripon CA MNTCCAXGSMD  738   2026-03-23   
210-576 8 San Antonio TX SNANTXCA86Z  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 LSANCARCY1X  730   2016-08-26   
213-372 7 Los Angeles: DA 01 CA LSANCARCY1X  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   
214-238 1 Dallas TX   552   2026-09-28   
214-839 6 Irving TX   552   2026-09-26   
215-274 3 Philadelphia Suburban Zone 33 PA PHLAPAMKX7X  228   2016-05-20   
215-274 6 Philadelphia Suburban Zone 33 PA PHLAPAMKX7X  228   2016-05-20   
215-315 2 Philadelphia Suburban Zone 39 PA PHLAPAMKX7X  228   2016-05-20   
215-315 6 Philadelphia Suburban Zone 39 PA PHLAPAMKX7X  228   2016-05-20   
215-347 7 Philadelphia Suburban Zone 39 PA PHLAPAMKX7X  228   2016-05-20   
215-347 8 Philadelphia Suburban Zone 39 PA PHLAPAMKX7X  228   2016-05-20   
215-358 9 Philadelphia Suburban Zone 33 PA PHLAPAMKX7X  228   2016-05-20   
215-367 0 Philadelphia Suburban Zone 33 PA PHLAPAMKX7X  228   2016-05-20   
215-367 6 Philadelphia Suburban Zone 33 PA PHLAPAMKX7X  228   2016-05-20   
215-367 8 Philadelphia Suburban Zone 33 PA PHLAPAMKX7X  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 PHLAPAMKX7X  228   2016-05-20   
215-394 2 Philadelphia Suburban Zone 39 PA PHLAPAMKX7X  228   2016-05-20   
215-394 6 Philadelphia Suburban Zone 39 PA PHLAPAMKX7X  228   2016-05-20   
215-394 9 Philadelphia Suburban Zone 39 PA PHLAPAMKX7X  228   2016-05-20   
215-420 6 Philadelphia Suburban Zone 39 PA PHLAPAMKX7X  228   2016-05-20   
216-500 2 Cleveland OH   320   2026-10-05   
216-500 3 Cleveland OH   320   2026-10-05   
216-500 4 Cleveland OH   320   2026-10-05   
217-354 0 Oakwood IL CHMPILCPXDY  370   2025-10-11   
217-866 7 Champaign-Urbana IL CHMPILCPXDY  370   2025-10-11   
217-900 7 Springfield IL SPFDILESXZX  374   2025-10-11   
217-951 0 Mattoon IL MTONILXCXMX  976   2026-01-20   
217-986 7 Springfield IL SPFDILESXZX  374   2025-10-11   
217-991 9 Champaign-Urbana IL CHMPILCPXDY  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   
219-409 8 Valparaiso IN SBNDIN13AMD  332   2026-04-10   
219-409 9 Valparaiso IN SBNDIN13AMD  332   2026-04-10   
223-240 A Harrisburg City Zone-1 PA HRBGPAGU8MD  226      
223-240 8 Harrisburg City Zone-1 PA HRBGPAGU8MD  226   2020-11-22   

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Last updated: Tue, 29 Sep 2026 03:00:13 UTC

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