Local Calling Guide

Area code/prefix search

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NPA: 947 [Rate centres in NPA 947] [Dial plan for NPA 947]

NXX: 228

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
947-228 A Farmington MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
947-228 0 Farmington MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2020-11-20   
947-228 1 Farmington MI   318J COMCAST IP PHONE, LLC 340   2021-01-12   
947-228 2 Farmington MI   197D VONAGE AMERICA LLC 340   2020-11-30   
947-228 3 Farmington MI   543C ONVOY, LLCV - MI 340   2021-01-08   
947-228 4 Farmington MI   543C ONVOY, LLCV - MI 340   2021-01-08   
947-228 5 Farmington MI   543C ONVOY, LLCV - MI 340   2021-01-08   
947-228 6 Farmington MI   197D VONAGE AMERICA LLC 340   2020-11-30   
947-228 7 Farmington MI   543C ONVOY, LLCV - MI 340   2021-01-08   
947-228 8 Farmington MI   543C ONVOY, LLCV - MI 340   2021-01-08   
947-228 9 Farmington MI   318J COMCAST IP PHONE, LLC 340   2021-01-12   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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