Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 737 [Rate centres in NPA 737] [Dial plan for NPA 737]

NXX: 366

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-366 A Milano TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-366 0 Milano TX   073H TELNYX LLC 558   2021-03-19   
737-366 1 Milano TX   004F BANDWIDTH.COM CLEC, LLC - TX 558   2021-07-04   
737-366 2 Milano TX   516J TON80 COMMUNICATIONS, LLC 558   2021-06-10   
737-366 3 Milano TX   903C ONVOY, LLC - TX 558   2021-04-12   
737-366 5 Milano TX   624H ONVOY SPECTRUM, LLC 558   2021-06-27   
737-366 6 Milano TX   903C ONVOY, LLC - TX 558   2021-01-15   
737-366 7 Milano TX   903C ONVOY, LLC - TX 558   2021-01-15   
737-366 8 Milano TX   624H ONVOY SPECTRUM, LLC 558   2021-12-04   
737-366 9 Milano TX   624H ONVOY SPECTRUM, LLC 558   2021-12-04   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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