Local Calling Guide

Area code/prefix search

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Switch: BLTMMDCH42Z

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
227-260 A Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2025-01-11   
227-260 0 Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2025-01-11   
227-260 1 Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2025-03-09   
227-260 2 Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2025-04-06   
227-888 0 Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2024-04-13   
227-888 1 Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2024-07-12   
227-888 6 Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2024-11-04   
227-888 9 Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2024-10-04   
240-345 0 Ashton (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2016-02-15   
240-512 1 Washington Zone 13 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2021-07-12   
240-512 6 Washington Zone 13 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2018-05-31   
240-512 8 Washington Zone 13 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2019-02-19   
240-512 9 Washington Zone 13 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2019-02-19   
240-540 4 Washington Zone 13 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2020-04-30   
240-540 5 Washington Zone 13 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2020-04-30   
240-540 6 Washington Zone 13 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2021-03-04   
240-540 7 Washington Zone 13 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2020-06-11   
240-540 8 Washington Zone 13 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2020-06-11   
240-540 9 Washington Zone 13 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2020-06-11   
240-570 A Ashton (Baltimore LATA) MD 876D ONVOY, LLC - MD 238      
240-570 7 Ashton (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2016-04-22   
240-570 8 Ashton (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2016-04-22   
240-571 2 Laurel (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2021-07-11   
240-571 3 Laurel (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2021-07-11   
240-712 5 Laurel (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2012-10-07   
240-742 2 Washington Zone 14 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2021-03-04   
240-742 3 Washington Zone 14 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2021-07-12   
240-742 4 Washington Zone 14 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2022-10-16   
240-759 A Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238      
240-759 2 Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2021-05-22   
240-759 3 Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2023-06-16   
240-759 5 Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2022-01-17   
240-759 8 Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2024-08-24   
240-763 1 Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2016-04-28   
240-763 2 Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2016-04-28   
240-763 3 Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2016-03-25   
240-763 4 Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2016-03-25   
240-763 7 Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2019-02-19   
240-763 8 Washington Zone 15 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2019-02-19   
240-820 A Ashton (Baltimore LATA) MD 876D ONVOY, LLC - MD 238      
240-820 2 Ashton (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2021-05-22   
240-820 3 Ashton (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2021-07-11   
240-820 4 Ashton (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2021-07-11   
240-843 1 Washington Zone 13 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2021-07-12   
240-859 A Ashton (Baltimore LATA) MD 876D ONVOY, LLC - MD 238      
240-859 7 Ashton (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2021-04-02   
240-859 8 Ashton (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2016-08-10   
240-859 9 Ashton (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2016-08-10   
240-865 3 Washington Zone 14 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2012-09-06   
240-881 3 Washington Zone 13 (Baltimore LATA) MD 876D ONVOY, LLC - MD 238   2022-01-07   

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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