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: 370

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
610-370 A Reading PA SLWBPASLDS0  9208 VERIZON PENNSYLVANIA, INC. 228      
610-370 0 Reading PA SLWBPASLDS0  9208 VERIZON PENNSYLVANIA, INC. 228      
610-370 1 Reading PA SLWBPASLDS0  9208 VERIZON PENNSYLVANIA, INC. 228      
610-370 2 Reading PA SLWBPASLDS0  9208 VERIZON PENNSYLVANIA, INC. 228      
610-370 3 Reading PA SLWBPASLDS0  9208 VERIZON PENNSYLVANIA, INC. 228      
610-370 4 Reading PA SLWBPASLDS0  9208 VERIZON PENNSYLVANIA, INC. 228      
610-370 5 Reading PA SLWBPASLDS0  9208 VERIZON PENNSYLVANIA, INC. 228      
610-370 6 Reading PA PHLAPAFGDSS  7341 XO COMMUNICATIONS SERVICES, INC. - PA 228   2007-10-09   
610-370 7 Reading PA PHLAPAMKXCX  318J COMCAST IP PHONE, LLC 228   2008-06-24   
610-370 8 Reading PA RDNGPAREUMD  7513 CTSI, INC. - PA 228   2004-04-09   
610-370 9 Reading PA SLWBPASLDS0  9208 VERIZON PENNSYLVANIA, INC. 228      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.