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
234-451 3 Warren OH YNTWOH74X4X  322   2026-02-20   
234-451 4 Warren OH YNTWOH74X4X  322   2026-02-20   
234-457 0 Akron OH   325   2026-09-26   
234-457 1 Akron OH   325   2026-09-26   
235-204 A Columbia MO CLMAMOXAX1Y  521   2026-02-08   
235-204 2 Columbia MO CLMAMOXAX1Y  521   2026-02-08   
235-204 3 Columbia MO CLMAMOXAX1Y  521   2026-02-08   
235-204 5 Columbia MO CLMAMOXAX1Y  521   2026-02-08   
235-204 9 Columbia MO CLMAMOXAX1Y  521   2026-02-08   
235-221 A Jefferson City MO JFCYMOXAXIY  521   2026-05-22   
235-221 7 Jefferson City MO JFCYMOXAXIY  521   2026-05-22   
235-221 8 Jefferson City MO JFCYMOXAXIY  521   2026-05-22   
235-221 9 Jefferson City MO JFCYMOXAXIY  521   2026-05-22   
239-328 A Fort Myers FL FTMYFL027MD  93902      
239-328 8 Fort Myers FL FTMYFL027MD  93902   2020-09-14   
239-328 9 Fort Myers FL FTMYFL027MD  93902   2020-09-14   
239-523 2 Fort Myers FL FTMYFL027MD  93902   2026-01-05   
239-523 3 Fort Myers FL FTMYFL027MD  93902   2026-01-05   
239-523 4 Fort Myers FL FTMYFL027MD  93902   2026-01-05   
239-567 6 Cape Coral FL FTMYFL027MD  93902   2026-06-07   
239-599 1 Cape Coral FL FTMYFL027MD  93902   2026-06-07   
239-652 8 Cape Coral FL FTMYFL027MD  93902   2026-06-07   
239-673 5 Cape Coral FL   93902   2026-09-12   
239-829 3 Cape Coral FL   93902   2026-09-12   
240-570 0 Ashton (Baltimore LATA) MD BLTMMDCHXVX  238   2016-05-14   
240-570 1 Ashton (Baltimore LATA) MD BLTMMDCHXVX  238   2016-05-14   
240-570 2 Ashton (Baltimore LATA) MD BLTMMDCHXVX  238   2016-05-14   
240-570 3 Ashton (Baltimore LATA) MD BLTMMDCHXVX  238   2016-05-14   
240-570 4 Ashton (Baltimore LATA) MD BLTMMDCHXVX  238   2016-05-14   
240-570 5 Ashton (Baltimore LATA) MD BLTMMDCHXVX  238   2016-05-14   
240-570 6 Ashton (Baltimore LATA) MD BLTMMDCHXVX  238   2016-05-14   
240-570 9 Ashton (Baltimore LATA) MD BLTMMDCHXVX  238   2016-05-14   
240-730 A Hagerstown MD HGTWMD53DMD  240      
240-730 8 Hagerstown MD HGTWMD53DMD  240   2020-10-09   
240-730 9 Hagerstown MD HGTWMD53DMD  240   2020-10-09   
248-639 5 Pontiac MI SFLDMIMKCMD  340   2026-03-27   
248-750 9 Southfield MI SFLDMIMKCMD  340   2026-03-27   
248-784 9 Southfield MI SFLDMIMKCMD  340   2026-03-27   
251-416 6 Jackson AL MOBLAL027MD  480   2025-11-02   
251-427 7 Fairhope AL MOBLAL027MD  480   2025-11-02   
251-502 1 Foley AL MOBLAL027MD  480   2025-11-02   
251-528 3 Mobile AL MOBLAL027MD  480   2025-07-28   
251-528 4 Mobile AL MOBLAL027MD  480   2025-07-28   
251-528 5 Mobile AL MOBLAL027MD  480   2025-07-28   
251-531 A Mount Vernon AL MOBLAL027MD  480   2025-10-17   
251-531 2 Mount Vernon AL MOBLAL027MD  480   2025-10-17   
251-531 3 Mount Vernon AL MOBLAL027MD  480   2025-10-17   
251-531 4 Mount Vernon AL MOBLAL027MD  480   2025-10-17   
251-710 7 Atmore AL MOBLAL027MD  480   2025-11-02   
251-799 A Mobile AL MOBLAL027MD  480   2025-06-20   

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

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