Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 302 [Rate centres in NPA 302] [Dial plan for NPA 302]

NXX: 556

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
302-556 A Delmar DE PHLAPAFGD2S  969E ONVOY, LLC - DE 228      
302-556 0 Delmar DE   624H ONVOY SPECTRUM, LLC 228   2021-11-07   
302-556 1 Delmar DE   624H ONVOY SPECTRUM, LLC 228   2021-11-07   
302-556 2 Delmar DE   624H ONVOY SPECTRUM, LLC 228   2021-05-15   
302-556 3 Delmar DE   969E ONVOY, LLC - DE 228   2021-01-15   
302-556 4 Delmar DE   969E ONVOY, LLC - DE 228   2020-11-21   
302-556 5 Delmar DE   969E ONVOY, LLC - DE 228   2020-11-21   
302-556 6 Delmar DE   969E ONVOY, LLC - DE 228   2021-01-15   
302-556 7 Delmar DE   969E ONVOY, LLC - DE 228   2021-01-15   
302-556 8 Delmar DE   969E ONVOY, LLC - DE 228   2021-01-15   
302-556 9 Delmar DE   826F MCC TELEPHONY OF THE MID-ATLANTIC, LLC - DE 228   2022-12-29   

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

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