Local Calling Guide

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Pikesville, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
667-533 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-02   
667-533 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-02   
667-533 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-02   
667-533 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-02   
667-533 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-02   
667-533 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-02   
667-540 A   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-17   
667-540 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-20   
667-540 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-20   
667-540 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-20   
667-540 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-20   
667-540 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-17   
667-540 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-17   
667-540 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-17   
667-540 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-17   
667-540 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-17   
667-540 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-17   
667-543 A   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-543 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-543 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-543 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-543 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-543 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-543 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 A   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 6   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 7   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 8   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-544 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-05-02   
667-596 A CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-02   
667-596 0 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-03   
667-596 1 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-03   
667-596 2 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-03   
667-596 3 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-03   
667-596 4 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-02   
667-596 5 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-02   
667-596 6 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-02   
667-596 7 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-02   
667-596 8 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-02   
667-596 9 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-01-02   
667-622 A BLTQMD01BMD  516J TON80 COMMUNICATIONS, LLC 238      
667-622 0 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-07-25   
667-622 1 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-07-25   
667-622 2 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-07-25   
667-622 3 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-07-25   
667-622 4 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-10-03   
667-622 5 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-10-03   
667-622 6 BLTQMD01BMD  516J TON80 COMMUNICATIONS, LLC 238   2022-05-26   
667-622 7 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-08-29   
667-622 8 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-08-29   
667-622 9 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-08-29   
667-667 A   876D ONVOY, LLC - MD 238   2025-10-16   
667-667 0   876D ONVOY, LLC - MD 238   2025-10-16   
667-667 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-02   
667-667 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-02   
667-667 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-02   
667-667 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-02   
667-667 5   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-02   
667-667 6   876D ONVOY, LLC - MD 238   2025-10-16   
667-667 7   876D ONVOY, LLC - MD 238   2025-10-16   
667-667 8   876D ONVOY, LLC - MD 238   2025-10-16   
667-667 9   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2026-04-02   
667-755 A BLTMMDCHX3Y  2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238      
667-755 0 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-01   
667-755 1 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-01   
667-755 2 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-01   
667-755 3 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-01   
667-755 4 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2022-10-16   
667-755 5 BLTMMDCHX3Y  2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238   2021-11-29   
667-755 6 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-02-07   
667-755 7 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-02-07   
667-755 8 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-01   
667-755 9 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-01   
667-877 A BLTMMDSNFMD  939H COMMIO, LLC 238      
667-877 0 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-11-19   
667-877 1 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-11-19   
667-877 2 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-12-12   
667-877 3 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-12-12   
667-877 4 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-12-12   
667-877 5 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-12-12   
667-877 6 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-12-12   
667-877 7 BLTMMDSNFMD  939H COMMIO, LLC 238   2022-11-18   
667-877 8 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-12-12   
667-877 9 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2022-11-19   

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

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