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
228-338 9 Biloxi MS BILXMSAT8MD  484   2020-07-19   
231-293 A Frankfort MI BRSPMI099MD  348      
231-293 9 Frankfort MI BRSPMI099MD  348   2021-07-05   
234-279 A Akron OH AKRNOH2533Z  325      
234-279 8 Akron OH AKRNOH2533Z  325   2020-09-25   
234-279 9 Akron OH AKRNOH2533Z  325   2020-09-25   
234-370 A Youngstown OH YNTWOH74X4X  322      
234-370 8 Youngstown OH YNTWOH74X4X  322   2023-05-11   
234-370 9 Youngstown OH YNTWOH74X4X  322   2023-05-11   
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   
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   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   
251-528 3 Mobile AL   480   2025-07-28   
251-528 4 Mobile AL   480   2025-07-28   
251-528 5 Mobile AL   480   2025-07-28   
251-531 A Mount Vernon AL   480   2025-10-17   
251-531 2 Mount Vernon AL   480   2025-10-17   
251-531 3 Mount Vernon AL   480   2025-10-17   
251-531 4 Mount Vernon AL   480   2025-10-17   
251-799 A Mobile AL   480   2025-06-20   
251-799 7 Mobile AL   480   2025-06-20   
251-799 8 Mobile AL   480   2025-06-20   
251-799 9 Mobile AL   480   2025-06-20   
252-889 A Rocky Mount NC   951   2025-08-17   
252-889 7 Rocky Mount NC   951   2025-08-17   
252-889 8 Rocky Mount NC   951   2025-08-17   
252-889 9 Rocky Mount NC   951   2025-08-17   
253-257 3 Tacoma-Waverly WA EVRTWAXAXVX  674   2016-09-11   
253-257 4 Tacoma-Waverly WA EVRTWAXAXVX  674   2016-09-11   
253-331 4 Tacoma-Waverly WA EVRTWAXAXVX  674   2017-11-05   
253-392 3 Tacoma-Waverly WA EVRTWAXAXVX  674   2016-04-28   
253-458 8 Kent WA   674   2016-05-21   
253-480 8 Kent WA EVRTWAXAXVX  674   2016-05-21   
253-993 3 Tacoma-Waverly WA EVRTWAXAXVX  674   2019-09-15   
254-504 A Waco TX WACOTXEY5MD  556      
254-504 9 Waco TX WACOTXEY5MD  556   2020-04-12   
256-696 A Huntsville AL HNVIAL96X3X  477      
256-696 9 Huntsville AL HNVIAL96X3X  477   2020-04-02   
256-969 A Huntsville AL HNVIAL96X6X  477      
256-969 8 Huntsville AL HNVIAL96X6X  477   2022-09-26   
256-969 9 Huntsville AL HNVIAL96X6X  477   2022-09-26   
260-328 A Fort Wayne IN FTWYIN01AMD  334      
260-328 8 Fort Wayne IN FTWYIN01AMD  334   2023-05-11   
260-328 9 Fort Wayne IN FTWYIN01AMD  334   2023-05-11   
262-291 A Jackson WI MILWWIAU10Z  356      
262-291 9 Jackson WI MILWWIAU10Z  356   2021-07-24   
262-535 4 Jackson WI   356   2025-08-10   
262-535 5 Jackson WI   356   2025-08-10   
267-386 0 Philadelphia Zone 1 PA PHLAPAMKX7X  228   2021-09-28   
267-435 5 Philadelphia Suburban Zone 32 PA PHLAPAMKX7X  228   2020-05-28   
267-447 4 Philadelphia Suburban Zone 32 PA PHLAPAMKX7X  228   2016-05-13   
267-447 6 Philadelphia Suburban Zone 32 PA PHLAPAMKX7X  228   2016-05-13   
267-510 1 Morrisville PA PHLAPAMKX7X  228   2016-02-07   
267-510 2 Morrisville PA PHLAPAMKX7X  228   2016-02-07   
267-510 3 Morrisville PA PHLAPAMKX7X  228   2016-02-07   
267-510 4 Morrisville PA PHLAPAMKX7X  228   2016-02-07   
267-510 5 Morrisville PA PHLAPAMKX7X  228   2016-02-07   
267-510 6 Morrisville PA PHLAPAMKX7X  228   2016-02-07   
267-510 9 Morrisville PA PHLAPAMKX7X  228   2016-02-07   
267-526 5 Philadelphia Suburban Zone 41 PA PHLAPAMKX7X  228   2016-01-02   
267-526 6 Philadelphia Suburban Zone 41 PA PHLAPAMKX7X  228   2016-01-02   
267-527 A Philadelphia Suburban Zone 41 PA PHLAPAMKX7X  228      
267-527 0 Philadelphia Suburban Zone 41 PA PHLAPAMKX7X  228   2016-01-02   
267-527 2 Philadelphia Suburban Zone 41 PA PHLAPAMKX7X  228   2016-01-02   
267-527 3 Philadelphia Suburban Zone 41 PA PHLAPAMKX7X  228   2016-01-02   
267-527 4 Philadelphia Suburban Zone 41 PA PHLAPAMKX7X  228   2016-01-02   
267-527 5 Philadelphia Suburban Zone 41 PA PHLAPAMKX7X  228   2016-01-02   
267-527 6 Philadelphia Suburban Zone 41 PA PHLAPAMKX7X  228   2016-01-02   
267-527 8 Philadelphia Suburban Zone 41 PA PHLAPAMKX7X  228   2016-01-02   
267-527 9 Philadelphia Suburban Zone 41 PA PHLAPAMKX7X  228   2016-01-02   
267-571 3 Philadelphia Suburban Zone 37 PA PHLAPAMKX7X  228   2016-01-02   
267-619 9 Philadelphia Suburban Zone 43 PA PHLAPAMKX7X  228   2016-01-07   
267-652 2 North Wales PA PHLAPAMKX7X  228   2016-01-02   
267-652 3 North Wales PA PHLAPAMKX7X  228   2016-01-02   
267-652 5 North Wales PA PHLAPAMKX7X  228   2016-01-02   
267-652 6 North Wales PA PHLAPAMKX7X  228   2016-01-02   
267-652 8 North Wales PA PHLAPAMKX7X  228   2016-01-02   
267-657 5 North Wales PA PHLAPAMKX7X  228   2016-01-02   
267-657 6 North Wales PA PHLAPAMKX7X  228   2016-01-02   
267-657 8 North Wales PA PHLAPAMKX7X  228   2016-01-02   
267-657 9 North Wales PA PHLAPAMKX7X  228   2016-01-02   
267-662 3 North Wales PA PHLAPAMKX7X  228   2016-09-08   
267-662 4 North Wales PA PHLAPAMKX7X  228   2016-09-08   
267-667 A Philadelphia Zone 1 PA PHLAPAMKX7X  228      
267-667 9 Philadelphia Zone 1 PA PHLAPAMKX7X  228   2019-02-03   
267-676 0 Newtown PA PHLAPAMKX7X  228   2016-02-07   
267-676 1 Newtown PA PHLAPAMKX7X  228   2016-02-07   
267-676 2 Newtown PA PHLAPAMKX7X  228   2016-02-07   
267-676 3 Newtown PA PHLAPAMKX7X  228   2016-02-07   

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Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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