Local Calling Guide

Area code/prefix search

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NPA: 989 [Rate centres in NPA 989] [Dial plan for NPA 989]

NXX: 436

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-436 A Ithaca MI SGNWMIATUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344      
989-436 0 Ithaca MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 344   2008-12-01   
989-436 1 Ithaca MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2009-03-13   
989-436 2 Ithaca MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2009-09-26   
989-436 3 Ithaca MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2011-05-24   
989-436 4 Ithaca MI   543C ONVOY, LLCV - MI 344   2017-05-26   
989-436 5 Ithaca MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2009-06-07   
989-436 6 Ithaca MI   5562 METROPCS, INC. 344   2009-09-07   
989-436 7 Ithaca MI   508J CENTURYLINK COMMUNICATIONS, LLC 344   2015-05-07   
989-436 8 Ithaca MI   933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 344   2015-11-13   
989-436 9 Ithaca MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2010-10-29   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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