Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Rising Sun, MD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-214 A BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
410-214 0 BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2009-05-09   
410-214 1   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
410-214 2 BLTMMDCH47Z  420C ARMSTRONG TELECOMMUNICATIONS, INC. - MD 238   2017-07-07   
410-214 3   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
410-214 4   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
410-214 5 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2023-07-14   
410-214 6   318J COMCAST IP PHONE, LLC 238   2025-10-12   
410-214 7 BLTQMD019MD  490J DISH WIRELESS, LLC 238   2023-03-01   
410-214 8 BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-06-27   
410-214 9 BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-06-27   
410-658 A RSSNMDXR0MD  0216 ARMSTRONG TEL. CO. OF MARYLAND 238      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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