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
413-602 2 Springfield MA   126   2026-03-20   
413-602 3 Springfield MA   126   2026-03-20   
414-261 A Milwaukee Zone 1 WI MILWWIAU07Z  356      
414-261 9 Milwaukee Zone 1 WI MILWWIAU07Z  356   2020-11-23   
414-300 4 Milwaukee Zone 1 WI   356   2025-08-10   
414-300 5 Milwaukee Zone 1 WI   356   2025-08-10   
415-214 6 San Francisco: Central DA CA   722   2026-06-01   
415-417 6 San Francisco: Central DA CA   722   2026-06-01   
415-908 5 San Francisco: Central DA CA   722   2026-06-01   
415-909 1 San Francisco: Juniper DA CA SNFCCA21XOZ  722   2016-06-09   
415-909 2 San Francisco: Juniper DA CA SNFCCA21XOZ  722   2016-06-09   
415-909 6 San Francisco: Juniper DA CA SNFCCA21XOZ  722   2016-06-28   
417-604 A Springfield MO SPFDMOMCXVX  522      
417-604 8 Springfield MO SPFDMOMCXVX  522   2023-05-11   
417-604 9 Springfield MO SPFDMOMCXVX  522   2023-05-11   
417-618 6 Springfield MO   522   2025-11-14   
417-618 7 Springfield MO   522   2025-11-14   
423-993 A Chattanooga TN   472   2026-01-22   
423-993 6 Chattanooga TN   472   2026-01-22   
423-993 7 Chattanooga TN   472   2026-01-22   
423-993 8 Chattanooga TN   472   2026-01-22   
423-993 9 Chattanooga TN   472   2026-01-22   
423-995 A Johnson City TN   956   2026-01-22   
423-995 6 Johnson City TN   956   2026-01-22   
423-995 7 Johnson City TN   956   2026-01-22   
423-995 8 Johnson City TN   956   2026-01-22   
423-995 9 Johnson City TN   956   2026-01-22   
424-304 3 Redondo CA LSANCARCY1X  730   2016-06-02   
424-304 5 Redondo CA LSANCARCY1X  730   2016-06-02   
424-304 6 Redondo CA LSANCARCY1X  730   2016-06-02   
424-304 7 Redondo CA LSANCARCY1X  730   2016-06-02   
424-304 8 Redondo CA LSANCARCY1X  730   2016-06-02   
424-304 9 Redondo CA LSANCARCY1X  730   2016-08-27   
424-350 2 Redondo CA LSANCARCY1X  730   2016-08-27   
424-359 4 Beverly Hills CA LSANCARCY1X  730   2016-06-02   
424-359 5 Beverly Hills CA LSANCARCY1X  730   2016-06-02   
424-359 6 Beverly Hills CA   730   2016-06-02   
424-359 7 Beverly Hills CA LSANCARCY1X  730   2016-06-02   
424-359 8 Beverly Hills CA LSANCARCY1X  730   2016-06-02   
424-365 5 West Los Angeles CA LSANCARCY1X  730   2014-08-16   
424-452 3 Redondo CA LSANCARCY1X  730   2016-08-27   
424-452 4 Redondo CA LSANCARCY1X  730   2016-08-27   
424-452 5 Redondo CA LSANCARCY1X  730   2016-08-27   
424-472 2 Beverly Hills CA   730   2026-05-15   
424-472 3 Beverly Hills CA   730   2026-05-15   
424-550 4 Beverly Hills CA   730   2026-05-15   
424-561 4 Redondo CA   730   2026-05-15   
424-561 5 Redondo CA   730   2026-05-15   
424-561 6 Redondo CA   730   2026-05-15   
425-225 0 Silver Lake WA EVRTWAXAXVX  674   2016-09-11   
425-225 9 Silver Lake WA EVRTWAXAXVX  674   2016-09-11   
425-230 8 Bellevue WA EVRTWAXAXVX  674   2016-05-21   
425-230 9 Bellevue WA EVRTWAXAXVX  674   2016-05-21   
425-399 9 Silver Lake WA EVRTWAXAXVX  674   2016-05-21   
425-436 6 Bellevue WA EVRTWAXAXVX  674   2019-09-06   
425-535 A Everett WA EVRTWAXAXVX  674      
425-535 9 Everett WA EVRTWAXAXVX  674   2018-12-27   
425-585 5 Silver Lake WA EVRTWAXAXVX  674   2016-05-21   
425-585 6 Silver Lake WA EVRTWAXAXVX  674   2019-05-05   
425-585 7 Silver Lake WA EVRTWAXAXVX  674   2019-08-22   
425-666 4 Everett WA EVRTWAXAXVX  674   2020-10-08   
425-666 5 Everett WA EVRTWAXAXVX  674   2020-10-08   
425-800 1 Bellevue WA   674   2017-11-05   
425-800 2 Bellevue WA EVRTWAXAXVX  674   2017-11-05   
430-450 A Longview TX   554   2026-01-22   
430-450 6 Longview TX   554   2026-01-22   
430-450 7 Longview TX   554   2026-01-22   
430-450 8 Longview TX   554   2026-01-22   
430-450 9 Longview TX   554   2026-01-22   
434-291 A Lynchburg VA LYBGVA556MD  250      
434-291 8 Lynchburg VA LYBGVA556MD  250   2020-11-20   
434-291 9 Lynchburg VA LYBGVA556MD  250   2020-11-20   
434-833 A Charlottesville VA CHVLVAXAXOY  928      
434-833 8 Charlottesville VA CHVLVAXAXOY  928   2020-11-20   
434-833 9 Charlottesville VA CHVLVAXAXOY  928   2020-11-20   
440-440 5 Hillcrest OH   320   2026-02-20   
440-440 6 Hillcrest OH   320   2026-02-20   
440-672 A Cleveland OH CLEVOHEKLMD  320      
440-672 8 Cleveland OH CLEVOHEKLMD  320   2020-10-09   
440-672 9 Cleveland OH CLEVOHEKLMD  320   2020-10-09   
440-696 A Brecksville OH CLEVOHEKPMD  320      
440-696 8 Brecksville OH CLEVOHEKPMD  320   2021-06-13   
440-696 9 Brecksville OH CLEVOHEKPMD  320   2021-06-13   
442-204 7 Vista CA SNDGCA0261Z  732   2016-06-11   
442-204 8 Vista CA SNDGCA0261Z  732   2016-06-11   
442-204 9 Vista CA SNDGCA0261Z  732   2016-06-11   
442-227 A Palm Desert CA PLSPCAXGXVZ  973      
442-227 1 Palm Desert CA PLSPCAXGXVZ  973   2013-12-16   
442-235 5 Barstow: Barstow DA CA LSANCARCY1X  730   2014-08-15   
442-243 3 Victorville: Victorville DA CA LSANCARCY1X  730   2014-08-15   
443-227 3 Port Deposit MD BLTMMDCHXVX  238   2016-05-14   
443-227 6 Port Deposit MD BLTMMDCHXVX  238   2016-05-14   
443-227 8 Port Deposit MD BLTMMDCHXVX  238   2016-05-14   
443-227 9 Port Deposit MD BLTMMDCHXVX  238   2016-05-14   
443-412 6 Churchville MD BLTMMDCHXVX  238   2016-05-14   
443-464 3 Churchville MD BLTMMDCHXVX  238   2016-05-14   
443-464 6 Churchville MD   238   2016-05-14   
443-464 7 Churchville MD BLTMMDCHXVX  238   2016-05-14   
443-568 7 Arbutus MD BLTMMDCHXVX  238   2020-05-01   
443-661 7 Waterloo MD BLTMMDCHXVX  238   2020-05-02   

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Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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