Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 620 [Rate centres in NPA 620] [Dial plan for NPA 620]

NXX: 678

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
620-678 A Hamilton KS HMTNKS01RS0  9533 SOUTHWESTERN BELL 532      
620-678 0 Hamilton KS   018H PEERLESS NETWORK OF KANSAS, LLC - KS 532   2016-02-15   
620-678 1 Hamilton KS   9533 SOUTHWESTERN BELL 532      
620-678 2 Hamilton KS   2240 LEVEL 3 COMMUNICATIONS, LLC - KS 532   2014-04-26   
620-678 3 Hamilton KS   9533 SOUTHWESTERN BELL 532      
620-678 4 Hamilton KS   205F ONVOY, LLC - KS 532   2017-05-02   
620-678 5 Hamilton KS   073H TELNYX LLC 532   2019-05-20   
620-678 6 Hamilton KS   593K MCC TELEPHONY LLC 532   2019-08-11   
620-678 7 Hamilton KS   508J CENTURYLINK COMMUNICATIONS, LLC 532   2014-03-07   
620-678 8 Hamilton KS   205F ONVOY, LLC - KS 532   2019-06-10   
620-678 9 Hamilton KS   205F ONVOY, LLC - KS 532   2019-06-10   

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

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