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: SYLVTXXADS0

Remotes:

Switch Switch name Switch type
MCLYTXXARS0  MCCAULLEY  DLM 
MRYNTXXARS0  MARYNEAL  DLM 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
325-993 A Sylvester TX 2090 ALENCO COMMUNICATIONS, INC. 550      

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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