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NPA: 227 [Rate centres in NPA 227] [Dial plan for NPA 227]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
227-888 3 Washington Zone 15 (Baltimore LATA) MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2024-11-20   
227-888 4 Washington Zone 15 (Baltimore LATA) MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2024-01-14   
227-888 5 Washington Zone 15 (Baltimore LATA) MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2024-01-14   
227-888 6 Washington Zone 15 (Baltimore LATA) MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-11-04   
227-888 7 Washington Zone 15 (Baltimore LATA) MD BLTMMDCHXVX  321J HD CARRIER LLC 238   2023-11-20   
227-888 8 Washington Zone 15 (Baltimore LATA) MD BLTMMDCHYMD  530H WIDE VOICE, LLC - MD 238   2023-11-20   
227-888 9 Washington Zone 15 (Baltimore LATA) MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-10-04   
227-997 A Washington Zone 2 MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2025-04-11   
227-997 0 Washington Zone 2 MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2025-12-12   
227-997 1 Washington Zone 2 MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2025-12-12   
227-997 2 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-02-26   
227-997 3 Washington Zone 2 MD   876D ONVOY, LLC - MD 236   2025-04-14   
227-997 4 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-03-02   
227-997 5 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-03-02   
227-997 6 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-03-02   
227-997 7 Washington Zone 2 MD   876D ONVOY, LLC - MD 236   2025-05-10   
227-997 8 Washington Zone 2 MD   876D ONVOY, LLC - MD 236   2025-05-10   
227-997 9 Washington Zone 2 MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2025-04-14   
227-998 A Washington Zone 2 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2024-11-22   
227-998 0 Washington Zone 2 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2024-11-22   
227-998 1 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-11-25   
227-998 2 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-11-25   
227-998 3 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-12-02   
227-998 4 Washington Zone 2 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2024-12-05   
227-998 5 Washington Zone 2 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2024-12-05   
227-998 6 Washington Zone 2 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2024-12-05   
227-998 7 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-03-02   
227-998 8 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-03-02   
227-998 9 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-03-02   
227-999 A Washington Zone 10 MD WASHDCSWFMD  530H WIDE VOICE, LLC - MD 236      
227-999 0 Washington Zone 10 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-10-01   
227-999 1 Washington Zone 10 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-02-19   
227-999 2 Washington Zone 10 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-02-19   
227-999 3 Washington Zone 10 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-02-19   
227-999 4 Washington Zone 10 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2024-01-14   
227-999 5 Washington Zone 10 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2024-01-14   
227-999 6 Washington Zone 10 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-02-19   
227-999 7 Washington Zone 10 MD WASHDCSWNMD  321J HD CARRIER LLC 236   2023-12-15   
227-999 8 Washington Zone 10 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2024-02-19   
227-999 9 Washington Zone 10 MD WASHDCSWFMD  530H WIDE VOICE, LLC - MD 236   2023-12-15   

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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