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OCN: 7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
301-556 2 Gaithersburg MD WASHDCTTDS0  236      
301-556 4 Gaithersburg MD WASHDCTTDS0  236      
301-556 9 Gaithersburg MD WASHDCTTDS0  236      
301-557 4 Washington Zone 3 MD   236   2011-10-29   
301-557 5 Washington Zone 3 MD   236   2011-10-29   
301-557 6 Washington Zone 3 MD   236   2011-10-29   
301-557 8 Washington Zone 3 MD   236   2011-10-29   
301-623 A Washington Zone 13 MD WASHDCTTDS0  236      
301-623 0 Washington Zone 13 MD WASHDCTTDS0  236      
301-623 1 Washington Zone 13 MD WASHDCTTDS0  236      
301-623 2 Washington Zone 13 MD WASHDCTTDS0  236      
301-623 3 Washington Zone 13 MD WASHDCTTDS0  236      
301-623 4 Washington Zone 13 MD WASHDCTTDS0  236      
301-628 A Washington Zone 3 MD WASHDCTTDS0  236      
301-628 0 Washington Zone 3 MD WASHDCTTDS0  236      
301-628 1 Washington Zone 3 MD WASHDCTTDS0  236      
301-628 2 Washington Zone 3 MD WASHDCTTDS0  236      
301-628 3 Washington Zone 3 MD WASHDCTTDS0  236      
301-628 4 Washington Zone 3 MD WASHDCTTDS0  236      
301-628 5 Washington Zone 3 MD WASHDCTTDS0  236      
301-634 A Washington Zone 2 MD WASHDCTTDS0  236      
301-658 A Ashton MD WASHDCTTDS0  236      
301-658 9 Ashton MD WASHDCTTDS0  236      
301-666 A Washington Zone 14 MD WASHDCTTDS0  236      
301-666 3 Washington Zone 14 MD WASHDCTTDS0  236      
301-677 A Washington Zone 14 MD WASHDCDTDS1  236      
301-679 A Washington Zone 12 MD WASHDCTTDS0  236      
301-679 4 Washington Zone 12 MD WASHDCTTDS0  236      
301-683 A Washington Zone 4 MD WASHDCTTDS0  236      
301-683 0 Washington Zone 4 MD WASHDCTTDS0  236      
301-683 1 Washington Zone 4 MD WASHDCTTDS0  236      
301-683 2 Washington Zone 4 MD WASHDCTTDS0  236      
301-683 3 Washington Zone 4 MD WASHDCTTDS0  236      
301-683 6 Washington Zone 4 MD WASHDCTTDS0  236      
301-684 A Indian Head MD WASHDCTTDS0  236      
301-684 9 Indian Head MD WASHDCTTDS0  236      
301-685 A Damascus MD WASHDCTTDS0  236      
301-685 9 Damascus MD WASHDCTTDS0  236      
301-691 A Poolesville MD WASHDCTTDS0  236      
301-691 9 Poolesville MD WASHDCTTDS0  236      
301-692 A Washington Zone 11 MD WASHDCTTDS0  236      
301-692 0 Washington Zone 11 MD WASHDCTTDS0  236      
301-692 1 Washington Zone 11 MD WASHDCTTDS0  236      
301-692 2 Washington Zone 11 MD WASHDCTTDS0  236      
301-692 3 Washington Zone 11 MD WASHDCTTDS0  236      
301-692 4 Washington Zone 11 MD WASHDCTTDS0  236      
301-715 A Washington Zone 15 MD WASHDCTTDS0  236      
301-715 2 Washington Zone 15 MD WASHDCTTDS0  236      
301-719 A Washington Zone 16 MD WASHDCTTDS0  236      
301-719 1 Washington Zone 16 MD WASHDCTTDS0  236      
301-720 A Brandywine MD WASHDCTTDS0  236      
301-720 9 Brandywine MD WASHDCTTDS0  236      
301-747 A Washington Zone 6 MD WASHDCTTDS0  236      
301-747 9 Washington Zone 6 MD WASHDCTTDS0  236      
301-803 1 Washington Zone 2 MD WASHDCTTDS0  236      
301-803 2 Washington Zone 2 MD WASHDCTTDS0  236      
301-803 3 Washington Zone 2 MD WASHDCTTDS0  236      
301-803 6 Washington Zone 2 MD WASHDCTTDS0  236      
301-820 A Gaithersburg MD WASHDCTTDS0  236      
301-820 4 Gaithersburg MD WASHDCTTDS0  236      
301-820 6 Gaithersburg MD WASHDCTTDS0  236      
301-821 A Laurel MD WASHDCTTDS0  236      
301-821 4 Laurel MD WASHDCTTDS0  236      
301-823 A Washington Zone 13 MD WASHDCDTDS1  236      
301-823 2 Washington Zone 13 MD WASHDCDTDS1  236   2008-10-10   
301-828 A Washington Zone 2 MD WASHDCDTDS1  236      
301-828 3 Washington Zone 2 MD OCQNVAXAVMD  236      
301-830 9 Washington Zone 3 MD OCQNVAXAVMD  236      
301-832 A Washington Zone 4 MD WASHDCDTDS1  236      
301-832 9 Washington Zone 4 MD WASHDCDTDS1  236      
301-833 A Washington Zone 14 MD WASHDCDTDS1  236      
301-833 1 Washington Zone 14 MD WASHDCDTDS1  236   2008-07-17   
301-833 2 Washington Zone 14 MD WASHDCDTDS1  236   2008-07-17   
301-833 3 Washington Zone 14 MD WASHDCDTDS1  236   2008-07-17   
301-833 4 Washington Zone 14 MD WASHDCDTDS1  236   2008-07-17   
301-833 5 Washington Zone 14 MD WASHDCDTDS1  236   2003-06-29   
301-833 6 Washington Zone 14 MD WASHDCDTDS1  236   2003-06-29   
301-833 7 Washington Zone 14 MD WASHDCDTDS1  236   2003-06-29   
301-833 8 Washington Zone 14 MD WASHDCDTDS1  236   2003-06-29   
301-833 9 Washington Zone 14 MD WASHDCDTDS1  236   2003-06-29   
301-867 1 Washington Zone 14 MD OCQNVAXAVMD  236   2020-08-10   
301-941 6 Washington Zone 2 MD OCQNVAXAVMD  236   2017-10-02   
301-994 6 Lexington Park-Great Mills MD OCQNVAXAVMD  236   2003-11-04   
540-602 A Stafford VA OCQNVAXAVMD  236      
540-602 6 Stafford VA OCQNVAXAVMD  236   2010-08-16   
540-873 3 Stafford VA OCQNVAXAVMD  236   2022-08-01   
571-227 A Washington Zone 8 VA WASHDCDTDS1  236      
571-250 1 Herndon VA WASHDCDTDS1  236   2009-11-09   
571-250 2 Herndon VA WASHDCDTDS1  236   2009-11-09   
571-250 3 Herndon VA WASHDCDTDS1  236   2009-11-09   
571-250 4 Herndon VA WASHDCDTDS1  236   2009-11-09   
571-254 A Triangle VA   236      
571-254 0 Triangle VA   236   2012-01-26   
571-254 1 Triangle VA   236   2012-01-26   
571-254 2 Triangle VA   236   2012-01-26   
571-254 3 Triangle VA   236   2012-01-26   
571-254 4 Triangle VA   236   2012-01-26   
571-254 5 Triangle VA   236   2012-01-26   
571-254 6 Triangle VA   236   2012-01-26   
571-254 7 Triangle VA   236   2012-01-26   

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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