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.
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Switch: HRNDVA13DS0

Remotes:

Switch Switch name Switch type
FRBGVAFBRS0    VCR 
HNVAMDBHRS0    EXM 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
202-386 A Washington Zone 1 DC 4725 CAVALIER TELEPHONE, LLC 236   2004-06-18   
202-461 A Washington Zone 1 DC 4725 CAVALIER TELEPHONE, LLC 236   2007-02-05   
240-222 A Waldorf MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-289 A Washington Zone 6 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-295 A Laurel MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-296 A Washington Zone 4 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-303 A Washington Zone 16 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-312 A 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      
240-335 A 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      
240-390 A 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      
240-403 A 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      
240-433 A Washington Zone 12 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-450 A Washington Zone 3 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-473 A Washington Zone 13 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
240-558 A Washington Zone 11 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
301-222 A Washington Zone 2 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
301-339 A Washington Zone 10 MD 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
540-318 A Stafford VA 4725 CAVALIER TELEPHONE, LLC 236   2006-05-08   
571-292 A Manassas VA 4725 CAVALIER TELEPHONE, LLC 236      
571-321 A Braddock VA 4725 CAVALIER TELEPHONE, LLC 236      
571-322 A Engleside VA 4725 CAVALIER TELEPHONE, LLC 236      
571-323 A Herndon VA 4725 CAVALIER TELEPHONE, LLC 236      
571-416 A Washington Zone 8 VA 4725 CAVALIER TELEPHONE, LLC 236      
571-521 A Herndon VA 4725 CAVALIER TELEPHONE, LLC 236      
703-224 A Washington Zone 8 VA 4725 CAVALIER TELEPHONE, LLC 236      
703-225 A Washington Zone 19 VA 4725 CAVALIER TELEPHONE, LLC 236      
703-226 A Washington Zone 17 VA 4725 CAVALIER TELEPHONE, LLC 236      
703-230 A Herndon VA 4725 CAVALIER TELEPHONE, LLC 236      
703-752 A Washington Zone 17 VA 4725 CAVALIER TELEPHONE, LLC 236      
703-766 A Washington Zone 19 VA 4725 CAVALIER TELEPHONE, LLC 236      
703-778 A Washington Zone 8 VA 4725 CAVALIER TELEPHONE, LLC 236      

Last updated: Sat, 08 Jun 2019 01:52:21 UTC

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