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
240-996 5 Brunswick MD   240   2020-01-05   
240-996 8 Brunswick MD   240   2020-01-05   
240-996 9 Brunswick MD   240   2026-01-10   
240-998 1 Hancock MD   240   2017-12-14   
240-998 8 Hancock MD   240   2020-01-06   
240-998 9 Hancock MD   240   2020-01-06   
301-200 0 Indian Head MD   236   2011-07-31   
301-205 5 Washington Zone 14 (Baltimore LATA) MD   238   2020-10-17   
301-220 6 Washington Zone 13 MD   236   2021-02-18   
301-231 1 Washington Zone 11 MD   236   2014-09-01   
301-234 7 Washington Zone 16 MD   236   2018-09-13   
301-234 8 Washington Zone 16 MD   236   2018-09-13   
301-235 1 Washington Zone 16 MD   236   2019-02-19   
301-235 2 Washington Zone 16 MD   236   2018-06-08   
301-235 8 Washington Zone 16 MD   236   2019-02-19   
301-238 7 Washington Zone 16 MD   236   2016-03-30   
301-238 8 Washington Zone 16 MD   236   2016-03-30   
301-245 5 Bittinger MD   240   2016-09-12   
301-245 8 Bittinger MD   240   2016-09-12   
301-246 8 Nanjemoy MD   236   2015-06-27   
301-250 1 Gaithersburg MD   236   2012-02-29   
301-259 3 Tompkinsville MD   236   2012-10-07   
301-263 3 Washington Zone 2 MD   236   2016-02-14   
301-264 9 Mount Savage MD   240   2021-07-11   
301-265 2 Washington Zone 6 MD   236   2014-10-24   
301-265 3 Washington Zone 6 MD   236   2014-10-24   
301-273 1 Washington Zone 3 MD   236   2014-10-24   
301-273 7 Washington Zone 3 MD   236   2014-10-24   
301-281 4 Washington Zone 6 MD   236   2016-03-07   
301-281 6 Washington Zone 6 MD   236   2016-03-07   
301-284 3 Washington Zone 10 MD   236   2016-01-29   
301-287 4 Washington Zone 11 MD   236   2017-12-08   
301-287 5 Washington Zone 11 MD   236   2017-12-08   
301-287 6 Washington Zone 11 MD   236   2017-12-08   
301-297 2 Washington Zone 16 MD   236   2025-01-09   
301-297 3 Washington Zone 16 MD   236   2021-04-02   
301-298 2 Washington Zone 15 MD   236   2016-03-14   
301-298 3 Washington Zone 15 MD   236   2016-03-14   
301-301 A Gaithersburg MD VINNVACBDS0  236      
301-301 0 Gaithersburg MD   236   2022-10-23   
301-301 1 Gaithersburg MD   236   2022-10-23   
301-301 2 Gaithersburg MD   236   2022-10-23   
301-301 3 Gaithersburg MD   236   2022-10-23   
301-301 4 Gaithersburg MD   236   2022-10-23   
301-301 5 Gaithersburg MD   236   2022-10-23   
301-301 6 Gaithersburg MD   236   2022-10-23   
301-301 7 Gaithersburg MD   236   2022-10-23   
301-301 8 Gaithersburg MD   236   2022-10-23   
301-301 9 Gaithersburg MD   236   2022-10-23   
301-307 1 Washington Zone 13 (Baltimore LATA) MD   238   2016-04-11   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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