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
251-799 7 Mobile AL MOBLAL027MD  480   2025-06-20   
251-799 8 Mobile AL MOBLAL027MD  480   2025-06-20   
251-799 9 Mobile AL MOBLAL027MD  480   2025-06-20   
252-889 A Rocky Mount NC RCMTNCXA14Z  951   2025-08-17   
252-889 7 Rocky Mount NC RCMTNCXA14Z  951   2025-08-17   
252-889 8 Rocky Mount NC RCMTNCXA14Z  951   2025-08-17   
252-889 9 Rocky Mount NC RCMTNCXA14Z  951   2025-08-17   
253-257 3 Tacoma-Waverly WA STTLWAWB18Z  674   2016-09-11   
253-257 4 Tacoma-Waverly WA STTLWAWB18Z  674   2016-09-11   
253-331 4 Tacoma-Waverly WA STTLWAWB18Z  674   2017-11-05   
253-392 3 Tacoma-Waverly WA STTLWAWB18Z  674   2016-04-28   
253-458 8 Kent WA STTLWAWB18Z  674   2016-05-21   
253-480 8 Kent WA STTLWAWB18Z  674   2016-05-21   
253-993 3 Tacoma-Waverly WA STTLWAWB18Z  674   2019-09-15   
254-504 A Waco TX WACOTXEY5MD  556      
254-504 9 Waco TX WACOTXEY5MD  556   2020-04-12   
256-271 1 Rogersville AL HNVIAL96X3X  477   2025-10-30   
256-628 3 Scottsboro AL HNVIAL96X3X  477   2025-10-30   
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   
260-371 6 Huntington IN FTWYIN01AMD  334   2026-04-09   
260-371 7 Huntington IN FTWYIN01AMD  334   2026-04-09   
260-386 6 Fort Wayne IN FTWYIN01AMD  334   2026-07-09   
260-386 7 Fort Wayne IN FTWYIN01AMD  334   2026-07-09   
260-386 8 Fort Wayne IN FTWYIN01AMD  334   2026-07-09   
262-291 A Jackson WI MILWWIAU10Z  356      
262-291 9 Jackson WI MILWWIAU10Z  356   2021-07-24   
262-535 4 Jackson WI MILWWIAU07Z  356   2025-08-10   
262-535 5 Jackson WI MILWWIAU07Z  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   
267-440 1 Philadelphia Suburban Zone 32 PA PHLAPAMKX7X  228   2016-05-13   
267-447 2 Philadelphia Suburban Zone 32 PA PHLAPAMKX7X  228   2016-05-13   
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   

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

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