Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 610 [Rate centres in NPA 610] [Dial plan for NPA 610]

NXX: 603

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
610-603 A Reading PA SHLNPASHDS0  9208 VERIZON PENNSYLVANIA, INC. 228      
610-603 0 Reading PA   9208 VERIZON PENNSYLVANIA, INC. 228      
610-603 1 Reading PA   9208 VERIZON PENNSYLVANIA, INC. 228      
610-603 2 Reading PA   7513 CTSI, INC. - PA 228   2003-05-07   
610-603 3 Reading PA   7513 CTSI, INC. - PA 228   2004-08-20   
610-603 4 Reading PA   6921 LIMITLESS MOBILE, LLC 228   2008-10-28   
610-603 5 Reading PA   7513 CTSI, INC. - PA 228   2004-08-20   
610-603 6 Reading PA   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 228   2007-01-04   
610-603 7 Reading PA   7513 CTSI, INC. - PA 228   2007-01-19   
610-603 8 Reading PA   9208 VERIZON PENNSYLVANIA, INC. 228      
610-603 9 Reading PA   9208 VERIZON PENNSYLVANIA, INC. 228      

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

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