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: MNSSVAXADS0

Remotes:

Switch Switch name Switch type
ARCLVAXARS0  ARCOLA  RSC 
DLLSVAXARS0  DULLES  DLM 
HYMRVAXARS2  HAYMARKET  RSS 
NKVLVAXARS0  NOKESVILLE  RLC 

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
703-393 4 Manassas VA 0233 VERIZON SOUTH, INC. - VA (CONTEL) 236      
703-393 6 Manassas VA 0233 VERIZON SOUTH, INC. - VA (CONTEL) 236      
703-393 7 Manassas VA 0233 VERIZON SOUTH, INC. - VA (CONTEL) 236      
703-393 8 Manassas VA 0233 VERIZON SOUTH, INC. - VA (CONTEL) 236      
703-393 9 Manassas VA 0233 VERIZON SOUTH, INC. - VA (CONTEL) 236      
703-396 A Manassas VA 0233 VERIZON SOUTH, INC. - VA (CONTEL) 236      
703-530 A Manassas VA 0233 VERIZON SOUTH, INC. - VA (CONTEL) 236      
703-686 6 Manassas VA 0233 VERIZON SOUTH, INC. - VA (CONTEL) 236   2007-08-17   
703-686 7 Manassas VA 0233 VERIZON SOUTH, INC. - VA (CONTEL) 236   2007-08-17   
703-792 A Manassas VA 0233 VERIZON SOUTH, INC. - VA (CONTEL) 236      

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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