Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
618-890 1 Freeburg IL 624H ONVOY SPECTRUM, LLC 520   2025-01-04   
618-892 3 Farina IL 624H ONVOY SPECTRUM, LLC 520   2025-01-04   
618-903 0 Dorchester IL 624H ONVOY SPECTRUM, LLC 520   2025-01-04   
618-909 8 Breese IL 624H ONVOY SPECTRUM, LLC 520   2025-01-04   
618-934 7 Summerfield IL 624H ONVOY SPECTRUM, LLC 520   2025-01-04   
618-989 9 Wood River IL 624H ONVOY SPECTRUM, LLC 520   2025-01-04   
618-991 0 Ramsey IL 624H ONVOY SPECTRUM, LLC 520   2025-01-04   
636-228 8 Augusta MO 624H ONVOY SPECTRUM, LLC 520   2021-11-18   
636-228 9 Augusta MO 624H ONVOY SPECTRUM, LLC 520   2021-11-18   
636-231 9 Washington MO 624H ONVOY SPECTRUM, LLC 520   2025-01-11   
636-252 0 Chesterfield MO 624H ONVOY SPECTRUM, LLC 520   2021-11-16   
636-252 1 Chesterfield MO 624H ONVOY SPECTRUM, LLC 520   2021-11-16   
636-252 2 Chesterfield MO 624H ONVOY SPECTRUM, LLC 520   2021-12-10   
636-252 3 Chesterfield MO 624H ONVOY SPECTRUM, LLC 520   2021-12-10   
636-254 0 Manchester MO 624H ONVOY SPECTRUM, LLC 520   2025-01-11   
636-260 8 St Charles MO 624H ONVOY SPECTRUM, LLC 520   2025-01-11   
636-264 4 Winfield MO 624H ONVOY SPECTRUM, LLC 520   2020-08-05   
636-264 5 Winfield MO 624H ONVOY SPECTRUM, LLC 520   2020-08-05   
636-264 6 Winfield MO 624H ONVOY SPECTRUM, LLC 520   2020-08-05   
636-269 1 Maxville MO 624H ONVOY SPECTRUM, LLC 520   2024-05-24   
636-270 0 Ware MO 624H ONVOY SPECTRUM, LLC 520   2024-03-23   
636-276 1 St Clair MO 624H ONVOY SPECTRUM, LLC 520   2025-01-11   
636-280 2 Eureka MO 624H ONVOY SPECTRUM, LLC 520   2025-01-11   
636-299 5 Chesterfield MO 624H ONVOY SPECTRUM, LLC 520   2021-07-02   
636-310 9 Hillsboro MO 624H ONVOY SPECTRUM, LLC 520   2024-03-23   
636-319 4 Dardenne MO 624H ONVOY SPECTRUM, LLC 520   2021-07-02   
636-319 8 Dardenne MO 624H ONVOY SPECTRUM, LLC 520   2021-11-16   
636-319 9 Dardenne MO 624H ONVOY SPECTRUM, LLC 520   2021-11-16   
636-347 0 De Soto MO 624H ONVOY SPECTRUM, LLC 520   2021-11-16   
636-347 1 De Soto MO 624H ONVOY SPECTRUM, LLC 520   2021-11-16   
636-347 3 De Soto MO 624H ONVOY SPECTRUM, LLC 520   2021-07-06   
636-347 6 De Soto MO 624H ONVOY SPECTRUM, LLC 520   2021-12-10   
636-347 7 De Soto MO 624H ONVOY SPECTRUM, LLC 520   2021-12-10   
636-354 3 Harvester MO 624H ONVOY SPECTRUM, LLC 520   2025-01-11   
636-368 3 Chesterfield MO 624H ONVOY SPECTRUM, LLC 520   2023-11-27   
636-375 7 High Ridge MO 624H ONVOY SPECTRUM, LLC 520   2024-03-23   
636-415 4 Harvester MO 624H ONVOY SPECTRUM, LLC 520   2025-05-12   
636-415 5 Harvester MO 624H ONVOY SPECTRUM, LLC 520   2025-05-12   
636-415 6 Harvester MO 624H ONVOY SPECTRUM, LLC 520   2025-05-12   
636-424 1 Pond MO 624H ONVOY SPECTRUM, LLC 520   2025-01-11   
636-434 9 Portage des Sioux MO 624H ONVOY SPECTRUM, LLC 520   2025-01-11   
636-461 8 Imperial MCA3 MO 624H ONVOY SPECTRUM, LLC 520   2024-03-23   
636-465 7 Festus-Crystal City MO 624H ONVOY SPECTRUM, LLC 520   2024-03-23   
636-475 0 Herculaneum-Pevely MCA4 MO 624H ONVOY SPECTRUM, LLC 520   2024-03-23   
636-482 0 Augusta MCA5 MO 624H ONVOY SPECTRUM, LLC 520   2021-11-16   
636-482 1 Augusta MCA5 MO 624H ONVOY SPECTRUM, LLC 520   2021-07-02   
636-482 9 Augusta MCA5 MO 624H ONVOY SPECTRUM, LLC 520   2021-11-16   
636-492 9 Fenton MO 624H ONVOY SPECTRUM, LLC 520   2024-03-23   
636-517 2 Valley Park MO 624H ONVOY SPECTRUM, LLC 520   2025-01-11   
636-536 8 Chesterfield MO 624H ONVOY SPECTRUM, LLC 520   2023-11-27   

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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