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: 302 [Rate centres in NPA 302] [Dial plan for NPA 302]

NXX: 730

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
302-730 A Dover DE DOVRDEDVDS0  9210 VERIZON DELAWARE, INC. 228      
302-730 0 Dover DE   9210 VERIZON DELAWARE, INC. 228      
302-730 1 Dover DE   9210 VERIZON DELAWARE, INC. 228      
302-730 2 Dover DE   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2020-12-18   
302-730 3 Dover DE   9210 VERIZON DELAWARE, INC. 228      
302-730 4 Dover DE   9210 VERIZON DELAWARE, INC. 228      
302-730 5 Dover DE   9210 VERIZON DELAWARE, INC. 228      
302-730 6 Dover DE   6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 228   2005-01-21   
302-730 7 Dover DE   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2020-12-18   
302-730 8 Dover DE   9210 VERIZON DELAWARE, INC. 228      
302-730 9 Dover DE   9210 VERIZON DELAWARE, INC. 228      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.