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: MNTINCMARS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
336-656 A Monticello NC 9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 424      
336-656 0 Monticello NC 9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 424      
336-656 1 Monticello NC 9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 424      
336-656 3 Monticello NC 9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 424      
336-656 4 Monticello NC 9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 424      
336-656 7 Monticello NC 9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 424      
336-656 9 Monticello NC 9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 424      

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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