Local Calling Guide

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OCN: 876D ONVOY, LLC - MD

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
301-301 5 Gaithersburg MD VINNVACBDS0  236   2022-10-23   
301-301 6 Gaithersburg MD VINNVACBDS0  236   2022-10-23   
301-301 7 Gaithersburg MD VINNVACBDS0  236   2022-10-23   
301-301 8 Gaithersburg MD VINNVACBDS0  236   2022-10-23   
301-301 9 Gaithersburg MD VINNVACBDS0  236   2022-10-23   
301-307 1 Washington Zone 13 (Baltimore LATA) MD BLTMMDCH42Z  238   2016-04-11   
301-307 2 Washington Zone 13 (Baltimore LATA) MD BLTMMDCH42Z  238   2016-04-11   
301-307 4 Washington Zone 13 (Baltimore LATA) MD BLTMMDCH42Z  238   2020-11-07   
301-307 9 Washington Zone 13 (Baltimore LATA) MD BLTMMDCH42Z  238   2020-11-07   
301-313 5 Washington Zone 13 MD VINNVACBDS0  236   2021-02-18   
301-321 A Washington Zone 11 MD VINNVACBDS0  236      
301-321 7 Washington Zone 11 MD VINNVACBDS0  236   2016-01-07   
301-321 8 Washington Zone 11 MD VINNVACBDS0  236   2016-01-07   
301-327 2 Washington Zone 15 (Baltimore LATA) MD BLTMMDCH42Z  238   2015-07-26   
301-329 A Ashton (Baltimore LATA) MD BLTMMDCH42Z  238      
301-329 2 Ashton (Baltimore LATA) MD BLTMMDCH42Z  238   2012-10-07   
301-329 3 Ashton (Baltimore LATA) MD BLTMMDCH42Z  238   2021-04-02   
301-329 4 Ashton (Baltimore LATA) MD BLTMMDCH42Z  238   2014-09-05   
301-329 6 Ashton (Baltimore LATA) MD BLTMMDCH42Z  238   2015-10-04   
301-329 8 Ashton (Baltimore LATA) MD BLTMMDCH42Z  238   2016-01-05   
301-349 3 Poolesville MD VINNVACBDS0  236   2016-03-01   
301-355 3 Gaithersburg MD VINNVACBDS0  236   2008-10-05   
301-357 8 Washington Zone 3 MD VINNVACBDS0  236   2007-09-13   
301-364 0 Washington Zone 4 MD VINNVACBDS0  236   2012-06-20   
301-364 3 Washington Zone 4 MD VINNVACBDS0  236   2008-10-05   
301-373 1 Leonardtown MD VINNVACBDS0  236   2008-10-05   
301-381 A Washington Zone 2 MD VINNVACBDS0  236      
301-381 0 Washington Zone 2 MD VINNVACBDS0  236   2022-09-16   
301-381 1 Washington Zone 2 MD VINNVACBDS0  236   2022-09-16   
301-381 2 Washington Zone 2 MD VINNVACBDS0  236   2022-09-16   
301-381 3 Washington Zone 2 MD VINNVACBDS0  236   2022-09-16   
301-381 4 Washington Zone 2 MD VINNVACBDS0  236   2022-09-16   
301-381 5 Washington Zone 2 MD VINNVACBDS0  236   2022-09-16   
301-381 6 Washington Zone 2 MD VINNVACBDS0  236   2022-09-16   
301-381 7 Washington Zone 2 MD VINNVACBDS0  236   2022-09-16   
301-381 8 Washington Zone 2 MD VINNVACBDS0  236   2022-09-16   
301-381 9 Washington Zone 2 MD VINNVACBDS0  236   2022-09-16   
301-389 2 Washington Zone 13 MD VINNVACBDS0  236   2022-08-21   
301-389 5 Washington Zone 13 MD VINNVACBDS0  236   2016-04-06   
301-389 6 Washington Zone 13 MD VINNVACBDS0  236   2016-04-06   
301-396 7 Waldorf MD VINNVACBDS0  236   2019-02-19   
301-398 7 Washington Zone 10 MD VINNVACBDS0  236   2003-11-09   
301-398 8 Washington Zone 10 MD VINNVACBDS0  236   2003-11-09   
301-398 9 Washington Zone 10 MD VINNVACBDS0  236   2003-11-09   
301-409 0 Washington Zone 2 MD VINNVACBDS0  236   2022-04-25   
301-409 3 Washington Zone 2 MD VINNVACBDS0  236   2022-12-12   
301-409 4 Washington Zone 2 MD VINNVACBDS0  236   2022-12-12   
301-409 5 Washington Zone 2 MD VINNVACBDS0  236   2022-12-12   
301-409 6 Washington Zone 2 MD VINNVACBDS0  236   2022-12-12   
301-414 8 Damascus MD VINNVACBDS0  236   2016-03-11   
301-417 5 Washington Zone 10 MD VINNVACBDS0  236   2015-06-27   
301-426 6 Washington Zone 13 MD   236   2025-05-10   
301-433 7 Washington Zone 5 MD VINNVACBDS0  236   2015-06-27   
301-450 5 Washington Zone 3 MD VINNVACBDS0  236   2022-09-17   
301-450 6 Washington Zone 3 MD VINNVACBDS0  236   2022-09-17   
301-450 7 Washington Zone 3 MD VINNVACBDS0  236   2022-09-17   
301-450 8 Washington Zone 3 MD VINNVACBDS0  236   2022-09-17   
301-453 4 Kitzmiller MD CMLDMDCMEMD  240   2016-09-12   
301-453 8 Kitzmiller MD CMLDMDCMEMD  240   2016-09-12   
301-458 3 Washington Zone 4 MD VINNVACBDS0  236   2016-02-29   
301-477 0 Washington Zone 13 MD VINNVACBDS0  236   2024-09-15   
301-477 8 Washington Zone 13 MD VINNVACBDS0  236   2018-01-14   
301-477 9 Washington Zone 13 MD VINNVACBDS0  236   2018-01-14   
301-478 8 Flintstone MD CMLDMDCMEMD  240   2016-09-12   
301-478 9 Flintstone MD CMLDMDCMEMD  240   2016-09-12   
301-479 0 Washington Zone 13 MD VINNVACBDS0  236   2024-11-04   
301-479 5 Washington Zone 13 MD VINNVACBDS0  236   2023-06-17   
301-479 6 Washington Zone 13 MD VINNVACBDS0  236   2023-06-17   
301-479 8 Washington Zone 13 MD VINNVACBDS0  236   2023-06-17   
301-479 9 Washington Zone 13 MD VINNVACBDS0  236   2023-06-17   
301-485 2 Washington Zone 6 MD VINNVACBDS0  236   2016-03-02   
301-485 4 Washington Zone 6 MD VINNVACBDS0  236   2016-04-28   
301-485 5 Washington Zone 6 MD VINNVACBDS0  236   2015-06-27   
301-507 0 Washington Zone 13 MD VINNVACBDS0  236   2024-02-24   
301-507 1 Washington Zone 13 MD VINNVACBDS0  236   2024-02-24   
301-507 2 Washington Zone 13 MD VINNVACBDS0  236   2024-02-24   
301-507 3 Washington Zone 13 MD VINNVACBDS0  236   2024-02-24   
301-507 4 Washington Zone 13 MD VINNVACBDS0  236   2024-07-27   
301-507 7 Washington Zone 13 MD VINNVACBDS0  236   2024-07-27   
301-507 8 Washington Zone 13 MD VINNVACBDS0  236   2024-07-27   
301-507 9 Washington Zone 13 MD VINNVACBDS0  236   2024-07-27   
301-513 8 Washington Zone 13 MD VINNVACBDS0  236   2024-09-15   
301-517 6 Washington Zone 10 MD VINNVACBDS0  236   2018-01-13   
301-517 9 Washington Zone 10 MD VINNVACBDS0  236   2018-01-13   
301-539 6 La Plata MD VINNVACBDS0  236   2022-08-21   
301-547 7 Washington Zone 2 MD VINNVACBDS0  236   2020-12-03   
301-550 2 Washington Zone 10 MD VINNVACBDS0  236   2022-10-15   
301-558 2 Washington Zone 13 MD   236   2025-09-28   
301-558 3 Washington Zone 13 MD   236   2025-09-28   
301-558 4 Washington Zone 13 MD   236   2025-09-28   
301-558 5 Washington Zone 13 MD   236   2025-08-29   
301-558 6 Washington Zone 13 MD   236   2025-09-28   
301-558 8 Washington Zone 13 MD   236   2025-08-29   
301-569 9 Gaithersburg MD VINNVACBDS0  236   2012-04-05   
301-579 7 Brandywine MD VINNVACBDS0  236   2016-03-03   
301-579 8 Brandywine MD VINNVACBDS0  236   2016-03-03   
301-591 7 Gaithersburg MD VINNVACBDS0  236   2021-02-18   
301-597 1 Waldorf MD VINNVACBDS0  236   2022-04-25   
301-597 4 Waldorf MD VINNVACBDS0  236   2022-04-25   
301-597 7 Waldorf MD VINNVACBDS0  236   2022-04-25   

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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