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: 321J HD CARRIER LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
202-920 A Washington Zone 1 DC WASHDCSWNMD  236      
202-920 9 Washington Zone 1 DC WASHDCSWNMD  236   2019-03-30   
202-949 A Washington Zone 1 DC WASHDCSWPMD  236      
202-949 9 Washington Zone 1 DC WASHDCSWPMD  236   2020-03-16   
202-968 A Washington Zone 1 DC WASHDCSWNMD  236      
202-968 8 Washington Zone 1 DC WASHDCSWNMD  236   2020-12-05   
202-968 9 Washington Zone 1 DC WASHDCSWNMD  236   2020-12-05   
205-825 A Birmingham AL BRHMALMTY5X  476      
205-825 9 Birmingham AL BRHMALMTY5X  476   2019-03-11   
205-885 A Ashville AL BRHMALMTYVX  476      
205-885 9 Ashville AL BRHMALMTYVX  476   2020-02-09   
205-946 6 Birmingham AL BRHMALMTY5X  476   2020-04-25   
206-460 7 Des Moines WA EVRTWAXAXVX  674   2016-05-21   
206-606 0 Seattle WA EVRTWAXAXVX  674   2016-05-21   
206-806 A Seattle WA STTLWAWB18Z  674      
206-806 9 Seattle WA STTLWAWB18Z  674   2019-06-07   
207-709 A Yarmouth ME PTLDME02HMD  120      
207-709 9 Yarmouth ME PTLDME02HMD  120   2022-04-01   
208-593 A Boise ID BOISIDPZAMD  652      
208-593 8 Boise ID BOISIDPZAMD  652   2020-08-01   
208-593 9 Boise ID BOISIDPZAMD  652   2020-08-01   
208-825 8 Twin Falls ID BOISIDPZAMD  652   2020-12-05   
209-399 A Manteca CA MNTCCAXGSMD  738      
209-399 9 Manteca CA MNTCCAXGSMD  738   2019-11-23   
209-440 4 Snelling CA MNTCCAXGSMD  738   2016-06-02   
209-440 5 Snelling CA MNTCCAXGSMD  738   2016-06-02   
209-440 6 Snelling CA MNTCCAXGSMD  738   2016-06-02   
209-440 8 Snelling CA MNTCCAXGSMD  738   2016-06-02   
209-440 9 Snelling CA MNTCCAXGSMD  738   2016-06-02   
209-563 3 Snelling CA MNTCCAXGSMD  738   2016-06-02   
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   
210-940 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   
213-699 8 Los Angeles: DA 07 CA LSANCARCY1X  730   2016-06-02   
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   
225-512 A Baton Rouge LA BTRGLA12XQZ  492      

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Last updated: Wed, 07 Feb 2024 04:12:25 UTC

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