Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 610 [Rate centres in NPA 610] [Dial plan for NPA 610]

NXX: 663

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
610-663 A Allentown (Lehigh) PA ALTWPAALDS0  9208 VERIZON PENNSYLVANIA, INC. 228      
610-663 0 Allentown (Lehigh) PA KGPRPADOAMD  6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 228   2020-01-30   
610-663 1 Allentown (Lehigh) PA PHLAPAFGXAY  2514 US LEC OF PENNSYLVANIA, INC. 228   2019-10-01   
610-663 2 Allentown (Lehigh) PA KGPRPADOAMD  6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 228   2020-11-11   
610-663 3 Allentown (Lehigh) PA ALTWPAALDS0  9208 VERIZON PENNSYLVANIA, INC. 228      
610-663 4 Allentown (Lehigh) PA KGPRPADOAMD  6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 228   2019-12-05   
610-663 5 Allentown (Lehigh) PA KGPRPADOAMD  6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 228   2016-01-22   
610-663 6 Allentown (Lehigh) PA ALTWPAALDS0  9208 VERIZON PENNSYLVANIA, INC. 228      
610-663 7 Allentown (Lehigh) PA KGPRPADOAMD  6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 228   2017-07-16   
610-663 8 Allentown (Lehigh) PA ALTWPAALDS0  9208 VERIZON PENNSYLVANIA, INC. 228      
610-663 9 Allentown (Lehigh) PA ALTWPAALDS0  9208 VERIZON PENNSYLVANIA, INC. 228      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.