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.

Switch: HRNDVA13AMD

<< 1 2 3 4 5 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-312 0 Washington Zone 5 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-312 1 Washington Zone 5 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-312 4 Washington Zone 5 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-312 9 Washington Zone 5 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-326 A Washington Zone 15 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-326 0 Washington Zone 15 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-326 1 Washington Zone 15 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-326 4 Washington Zone 15 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-326 9 Washington Zone 15 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-335 A Washington Zone 14 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-335 0 Washington Zone 14 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-335 1 Washington Zone 14 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-335 4 Washington Zone 14 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-335 9 Washington Zone 14 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-361 A Gaithersburg MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-361 0 Gaithersburg MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-361 1 Gaithersburg MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-361 2 Gaithersburg MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-361 3 Gaithersburg MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-361 4 Gaithersburg MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-361 5 Gaithersburg MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-361 6 Gaithersburg MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-361 9 Gaithersburg MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-390 A Ashton MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-390 0 Ashton MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-390 1 Ashton MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-390 4 Ashton MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-390 8 Ashton MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-390 9 Ashton MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-395 A Washington Zone 2 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-395 0 Washington Zone 2 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-395 1 Washington Zone 2 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-395 2 Washington Zone 2 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-395 4 Washington Zone 2 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-395 5 Washington Zone 2 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-395 8 Washington Zone 2 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-395 9 Washington Zone 2 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-403 A Washington Zone 10 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-403 0 Washington Zone 10 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-403 1 Washington Zone 10 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-403 2 Washington Zone 10 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-403 3 Washington Zone 10 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-403 4 Washington Zone 10 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-403 5 Washington Zone 10 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-403 6 Washington Zone 10 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-403 8 Washington Zone 10 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-403 9 Washington Zone 10 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-430 A Washington Zone 11 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-430 0 Washington Zone 11 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-430 1 Washington Zone 11 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      

<< 1 2 3 4 5 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.