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: 503

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
302-503 A Milford DE LPTPPAMAGT2  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
302-503 0 Milford DE PHLAPAMK20Z  073F BANDWIDTH.COM CLEC, LLC - DE 228   2014-07-04   
302-503 1 Milford DE LPTPPAMAGT2  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2014-06-22   
302-503 2 Milford DE PHLAPAMK20Z  073F BANDWIDTH.COM CLEC, LLC - DE 228   2014-07-04   
302-503 3 Milford DE PHLAPAMKXCX  318J COMCAST IP PHONE, LLC 228   2015-06-11   
302-503 4 Milford DE PHLAPAMK20Z  073F BANDWIDTH.COM CLEC, LLC - DE 228   2015-11-07   
302-503 5 Milford DE PHLAPAFGD2S  969E ONVOY, LLC - DE 228   2016-04-09   
302-503 6 Milford DE PHLAPAFGD2S  969E ONVOY, LLC - DE 228   2016-04-09   
302-503 7 Milford DE PHLAPAMKXCX  318J COMCAST IP PHONE, LLC 228   2017-04-14   
302-503 8 Milford DE PHLAPAMKXCX  318J COMCAST IP PHONE, LLC 228   2020-04-03   
302-503 9 Milford DE PHLAPAFGXCX  073H TELNYX LLC 228   2017-08-08   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.