Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 530H WIDE VOICE, LLC - MD

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
227-222 A Washington Zone 16 MD WASHDCSWFMD  236      
227-222 2 Washington Zone 16 MD WASHDCSWFMD  236   2023-12-18   
227-244 A Ridge MD WASHDCSWFMD  236   2024-07-27   
227-244 6 Ridge MD WASHDCSWFMD  236   2024-07-27   
227-368 A Mechanicsville MD WASHDCSWFMD  236      
227-368 6 Mechanicsville MD WASHDCSWFMD  236   2023-10-21   
227-777 A Ashton (Baltimore LATA) MD BLTMMDCHYMD  238      
227-777 7 Ashton (Baltimore LATA) MD BLTMMDCHYMD  238   2023-09-30   
227-888 A Washington Zone 15 (Baltimore LATA) MD BLTMMDCHYMD  238      
227-888 8 Washington Zone 15 (Baltimore LATA) MD BLTMMDCHYMD  238   2023-11-20   
227-999 A Washington Zone 10 MD WASHDCSWFMD  236      
227-999 9 Washington Zone 10 MD WASHDCSWFMD  236   2023-12-15   
240-540 A Washington Zone 13 (Baltimore LATA) MD BLTMMDCHX6X  238      
240-540 1 Washington Zone 13 (Baltimore LATA) MD BLTMMDCHX6X  238   2016-11-26   
240-570 9 Ashton (Baltimore LATA) MD BLTMMDCHYMD  238   2016-05-14   
301-205 9 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHYMD  238   2016-05-14   
410-587 9 Arbutus MD BLTMMDCHYMD  238   2016-05-14   
443-464 6 Churchville MD BLTMMDCHYMD  238   2016-05-14   
443-755 3 Waterloo MD BLTMMDCHYMD  238   2016-05-14   
667-771 A Baltimore MD BLTMMDCHYMD  238      
667-771 1 Baltimore MD BLTMMDCHYMD  238   2016-02-04   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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