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NPA: 557 [Rate centres in NPA 557] [Dial plan for NPA 557]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
557-248 A St Louis MO   128L E. RITTER COMMUNICATIONS, LLC 520   2026-02-19   
557-248 0 St Louis MO   093F ONVOY, LLC - MO 520   2026-06-22   
557-248 1 St Louis MO   128L E. RITTER COMMUNICATIONS, LLC 520   2026-02-19   
557-248 8 St Louis MO   093F ONVOY, LLC - MO 520   2026-06-22   
557-248 9 St Louis MO   093F ONVOY, LLC - MO 520   2026-06-22   
557-249 A Ladue MO   093F ONVOY, LLC - MO 520   2026-03-06   
557-249 0 Ladue MO   093F ONVOY, LLC - MO 520   2026-03-06   
557-249 1 Ladue MO   093F ONVOY, LLC - MO 520   2026-03-06   
557-249 2 Ladue MO   093F ONVOY, LLC - MO 520   2026-05-09   
557-249 3 Ladue MO   093F ONVOY, LLC - MO 520   2026-05-09   
557-249 4 Ladue MO   7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2026-03-23   
557-249 5 Ladue MO   093F ONVOY, LLC - MO 520   2026-05-09   
557-249 6 Ladue MO   093F ONVOY, LLC - MO 520   2026-05-09   
557-249 7 Ladue MO   093F ONVOY, LLC - MO 520   2026-03-22   
557-249 8 Ladue MO   093F ONVOY, LLC - MO 520   2026-03-09   
557-249 9 Ladue MO   093F ONVOY, LLC - MO 520   2026-03-22   
557-250 A St Louis MO   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 520   2026-04-28   
557-250 3 St Louis MO   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 520   2026-04-28   
557-250 8 St Louis MO   093F ONVOY, LLC - MO 520   2026-04-29   
557-250 9 St Louis MO   093F ONVOY, LLC - MO 520   2026-04-29   
557-251 A Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-04-12   
557-251 0 Kirkwood MO   093F ONVOY, LLC - MO 520   2026-04-13   
557-251 1 Kirkwood MO   093F ONVOY, LLC - MO 520   2026-05-03   
557-251 2 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-04-12   
557-251 3 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-04-12   
557-251 4 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-04-12   
557-251 5 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-04-12   
557-251 6 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-04-12   
557-251 7 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-04-12   
557-251 8 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-04-12   
557-251 9 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-04-12   
557-252 A St Louis MO   0051 SHELCOMM 520   2026-07-04   
557-253 A Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-07-18   
557-253 0 Kirkwood MO   093F ONVOY, LLC - MO 520   2026-07-20   
557-253 1 Kirkwood MO   093F ONVOY, LLC - MO 520   2026-07-20   
557-253 2 Kirkwood MO   093F ONVOY, LLC - MO 520   2026-07-20   
557-253 5 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-07-18   
557-253 6 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-07-18   
557-253 7 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-07-18   
557-253 8 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-07-18   
557-253 9 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-07-18   
557-254 A Ladue MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-07-24   
557-254 0 Ladue MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-07-24   
557-254 1 Ladue MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-07-24   
557-254 2 Ladue MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-07-24   
557-254 3 Ladue MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-07-24   
557-254 4 Ladue MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-07-24   
557-254 5 Ladue MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-07-24   
557-254 6 Ladue MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-07-24   
557-254 7 Ladue MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-07-24   
557-254 8 Ladue MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-07-24   
557-254 9 Ladue MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-07-24   
557-255 A Ladue MO   093F ONVOY, LLC - MO 520   2026-07-20   
557-255 0 Ladue MO   093F ONVOY, LLC - MO 520   2026-07-20   
557-255 1 Ladue MO   093F ONVOY, LLC - MO 520   2026-07-20   
557-255 2 Ladue MO   093F ONVOY, LLC - MO 520   2026-07-20   
557-255 3 Ladue MO   093F ONVOY, LLC - MO 520   2026-07-20   
557-255 4 Ladue MO   093F ONVOY, LLC - MO 520   2026-07-20   
557-255 5 Ladue MO   093F ONVOY, LLC - MO 520   2026-07-20   
557-256 A Mehlville MO   093F ONVOY, LLC - MO 520   2026-07-20   
557-256 0 Mehlville MO   093F ONVOY, LLC - MO 520   2026-07-20   
557-256 1 Mehlville MO   093F ONVOY, LLC - MO 520   2026-07-20   
557-273 A St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520      
557-273 0 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-273 1 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-273 2 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-273 3 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-273 4 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-273 5 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-273 6 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-273 7 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-273 8 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-273 9 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-333 A Sappington MO   093F ONVOY, LLC - MO 520   2025-09-08   
557-333 0 Sappington MO   093F ONVOY, LLC - MO 520   2025-09-08   
557-333 1 Sappington MO   093F ONVOY, LLC - MO 520   2025-11-28   
557-333 2 Sappington MO   093F ONVOY, LLC - MO 520   2026-05-09   
557-333 3 Sappington MO   093F ONVOY, LLC - MO 520   2025-09-08   
557-333 4 Sappington MO   093F ONVOY, LLC - MO 520   2025-09-08   
557-333 5 Sappington MO   093F ONVOY, LLC - MO 520   2026-05-09   
557-333 6 Sappington MO   093F ONVOY, LLC - MO 520   2026-05-09   
557-333 7 Sappington MO   093F ONVOY, LLC - MO 520   2026-05-09   
557-333 8 Sappington MO   093F ONVOY, LLC - MO 520   2026-03-22   
557-333 9 Sappington MO   093F ONVOY, LLC - MO 520   2026-05-09   
557-362 A St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520      
557-362 0 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-362 1 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-362 2 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-362 3 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-362 4 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-362 5 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-362 6 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-362 7 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-362 8 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-362 9 St Louis MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2023-02-24   
557-444 A Creve Coeur MO   093F ONVOY, LLC - MO 520   2025-09-08   
557-444 0 Creve Coeur MO   093F ONVOY, LLC - MO 520   2025-09-08   
557-444 1 Creve Coeur MO   093F ONVOY, LLC - MO 520   2026-03-14   
557-444 2 Creve Coeur MO   093F ONVOY, LLC - MO 520   2026-05-03   
557-444 3 Creve Coeur MO   093F ONVOY, LLC - MO 520   2026-05-03   

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Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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