Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 856 [Rate centres in NPA 856] [Dial plan for NPA 856]

NXX: 603

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
856-603 A Gloucester NJ CMDNNJCE83Z  829J PAETEC ITEL, LLC 222   2025-05-14   
856-603 0 Gloucester NJ CMDNNJCE83Z  829J PAETEC ITEL, LLC 222      
856-603 1 Gloucester NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222   2026-02-07   
856-603 2 Gloucester NJ CMDNNJCE83Z  829J PAETEC ITEL, LLC 222      
856-603 3 Gloucester NJ CMDNNJCE83Z  829J PAETEC ITEL, LLC 222      
856-603 4 Gloucester NJ CMDNNJCEXAZ  835E BLOCK LINE SYSTEMS, LLC - NJ 222   2009-05-09   
856-603 5 Gloucester NJ CMDNNJCEX8Z  637C ONVOY, LLC - NJ 222   2025-10-12   
856-603 6 Gloucester NJ CMDNNJCE60Z  507J THE VOICE APPLICATION NETWORK, LLC 222   2016-09-04   
856-603 7 Gloucester NJ CMDNNJCE43Z  073H TELNYX LLC 222   2018-12-02   
856-603 8 Gloucester NJ LRSPNJLSFMD  118F BANDWIDTH.COM CLEC, LLC - NJ 222   2022-01-03   
856-603 9 Gloucester NJ CMDNNJCE83Z  829J PAETEC ITEL, LLC 222      

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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