Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 6119 LEVEL 3 COMMUNICATIONS, LLC - MD

<< 1 2 3 4 5 6 7 8 9 10 11 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
240-822 0 New Market MD FRDRMDFRXMD  240      
240-839 4 Washington Zone 3 MD MCLNVA23DS4  236      
240-839 6 Washington Zone 3 MD MCLNVA23DS4  236      
240-855 0 Washington Zone 2 MD MCLNVA23DS4  236      
240-862 7 Mount Savage MD   240      
240-865 A Washington Zone 14 (Baltimore LATA) MD BLTMMDSN6MD  238      
240-865 4 Washington Zone 14 (Baltimore LATA) MD BLTMMDSN6MD  238      
240-874 2 Thurmont MD FRDRMDFRXMD  240      
240-880 A Washington Zone 11 MD MCLNVA23DS4  236      
240-880 1 Washington Zone 11 MD MCLNVA23DS4  236      
240-880 3 Washington Zone 11 MD MCLNVA23DS4  236      
240-880 4 Washington Zone 11 MD MCLNVA23DS4  236      
240-883 A Ashton MD MCLNVA23DS4  236      
240-883 3 Ashton MD MCLNVA23DS4  236      
240-891 A Damascus (Hagerstown LATA) MD FRDRMDFRXMD  240      
240-891 2 Damascus (Hagerstown LATA) MD FRDRMDFRXMD  240      
240-891 4 Damascus (Hagerstown LATA) MD   240      
240-891 5 Damascus (Hagerstown LATA) MD FRDRMDFRXMD  240      
240-892 A Washington Zone 15 MD MCLNVA23DS4  236      
240-892 3 Washington Zone 15 MD MCLNVA23DS4  236      
240-897 A Washington Zone 16 MD MCLNVA23DS4  236      
240-897 9 Washington Zone 16 MD MCLNVA23DS4  236      
240-898 A Washington Zone 4 MD MCLNVA23DS4  236      
240-898 2 Washington Zone 4 MD MCLNVA23DS4  236      
240-920 A Cumberland MD FRDRMDFRXMD  240      
240-920 0 Cumberland MD FRDRMDFRXMD  240      
240-934 2 Middletown MD FRDRMDFRXMD  240      
240-949 2 Washington Zone 16 MD MCLNVA23DS4  236      
240-949 4 Washington Zone 16 MD MCLNVA23DS4  236      
240-949 6 Washington Zone 16 MD MCLNVA23DS4  236      
240-949 7 Washington Zone 16 MD MCLNVA23DS4  236      
240-979 A Cumberland MD FRDRMDFRXMD  240      
240-979 0 Cumberland MD FRDRMDFRXMD  240      
240-979 4 Cumberland MD FRDRMDFRXMD  240      
240-979 9 Cumberland MD FRDRMDFRXMD  240      
240-996 A Brunswick MD   240      
240-996 7 Brunswick MD   240      
240-998 6 Hancock MD FRDRMDFRXMD  240      
301-200 4 Indian Head MD MCLNVA23DS4  236      
301-223 0 Williamsport MD FRDRMDFRXMD  240      
301-234 6 Washington Zone 16 MD MCLNVA23DS4  236      
301-256 0 Laurel MD MCLNVA23DS4  236      
301-273 6 Washington Zone 3 MD MCLNVA23DS4  236      
301-298 5 Washington Zone 15 MD MCLNVA23DS4  236      
301-328 1 Washington Zone 3 MD MCLNVA23DS4  236      
301-328 8 Washington Zone 3 MD MCLNVA23DS4  236      
301-355 0 Gaithersburg MD MCLNVA23DS4  236      
301-355 2 Gaithersburg MD MCLNVA23DS4  236      
301-358 A Washington Zone 15 MD MCLNVA23DS4  236      
301-358 0 Washington Zone 15 MD MCLNVA23DS4  236      
301-358 1 Washington Zone 15 MD MCLNVA23DS4  236      
301-358 2 Washington Zone 15 MD MCLNVA23DS4  236      
301-358 3 Washington Zone 15 MD MCLNVA23DS4  236      
301-358 4 Washington Zone 15 MD MCLNVA23DS4  236      
301-358 5 Washington Zone 15 MD MCLNVA23DS4  236      
301-358 6 Washington Zone 15 MD MCLNVA23DS4  236      
301-358 9 Washington Zone 15 MD MCLNVA23DS4  236      
301-363 A Damascus (Hagerstown LATA) MD FRDRMDFRXMD  240      
301-363 1 Damascus (Hagerstown LATA) MD FRDRMDFRXMD  240      
301-363 2 Damascus (Hagerstown LATA) MD FRDRMDFRXMD  240      
301-363 4 Damascus (Hagerstown LATA) MD FRDRMDFRXMD  240      
301-407 2 Gaithersburg MD MCLNVA23DS4  236      
301-476 0 Ashton MD MCLNVA23DS4  236      
301-476 1 Ashton MD MCLNVA23DS4  236      
301-476 4 Ashton MD MCLNVA23DS4  236      
301-476 5 Ashton MD MCLNVA23DS4  236      
301-476 6 Ashton MD MCLNVA23DS4  236      
301-533 7 Oakland MD FRDRMDFRXMD  240      
301-547 3 Washington Zone 2 MD MCLNVA23DS4  236      
301-557 A Washington Zone 3 MD MCLNVA23DS4  236      
301-557 1 Washington Zone 3 MD MCLNVA23DS4  236      
301-557 2 Washington Zone 3 MD MCLNVA23DS4  236      
301-557 3 Washington Zone 3 MD MCLNVA23DS4  236      
301-557 4 Washington Zone 3 MD MCLNVA23DS4  236      
301-557 5 Washington Zone 3 MD MCLNVA23DS4  236      
301-557 6 Washington Zone 3 MD MCLNVA23DS4  236      
301-557 7 Washington Zone 3 MD MCLNVA23DS4  236      
301-557 8 Washington Zone 3 MD MCLNVA23DS4  236      
301-563 9 Washington Zone 3 MD MCLNVA23DS4  236      
301-579 3 Brandywine MD MCLNVA23DS4  236      
301-579 4 Brandywine MD MCLNVA23DS4  236      
301-579 5 Brandywine MD MCLNVA23DS4  236      
301-605 9 Washington Zone 10 MD MCLNVA23DS4  236      
301-637 A Washington Zone 10 MD MCLNVA23DS4  236      
301-637 0 Washington Zone 10 MD MCLNVA23DS4  236      
301-637 2 Washington Zone 10 MD MCLNVA23DS4  236      
301-637 3 Washington Zone 10 MD MCLNVA23DS4  236      
301-637 4 Washington Zone 10 MD MCLNVA23DS4  236      
301-637 5 Washington Zone 10 MD MCLNVA23DS4  236      
301-637 6 Washington Zone 10 MD MCLNVA23DS4  236      
301-637 7 Washington Zone 10 MD MCLNVA23DS4  236      
301-637 8 Washington Zone 10 MD MCLNVA23DS4  236      
301-658 1 Ashton MD MCLNVA23DS4  236      
301-658 2 Ashton MD MCLNVA23DS4  236      
301-658 3 Ashton MD MCLNVA23DS4  236      
301-658 5 Ashton MD MCLNVA23DS4  236      
301-658 6 Ashton MD MCLNVA23DS4  236      
301-658 7 Ashton MD MCLNVA23DS4  236      
301-664 2 Washington Zone 2 MD MCLNVA23DS4  236      
301-684 5 Indian Head MD MCLNVA23DS4  236      

<< 1 2 3 4 5 6 7 8 9 10 11 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.