Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 557 [Rate centres in NPA 557] [Dial plan for NPA 557]

NXX: 264

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
557-264 A Ladue MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-11-06   
557-264 0 Ladue MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2026-11-09   
557-264 1 Ladue MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2026-11-09   
557-264 2 Ladue MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2026-11-09   
557-264 3 Ladue MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2026-11-09   
557-264 4 Ladue MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2026-11-09   
557-264 7 Ladue MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-11-06   
557-264 8 Ladue MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-11-06   
557-264 9 Ladue MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-11-06   

Last updated: Sun, 01 Nov 2026 02:11:49 UTC

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