Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 730 [Rate centres in NPA 730] [Dial plan for NPA 730]

NXX: 740

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
730-740 A Carbondale IL   321J HD CARRIER LLC 362   2026-01-19   
730-740 6 Carbondale IL   321J HD CARRIER LLC 362   2026-01-19   
730-740 7 Carbondale IL   321J HD CARRIER LLC 362   2026-01-19   
730-740 8 Carbondale IL   321J HD CARRIER LLC 362   2026-01-19   
730-740 9 Carbondale IL   321J HD CARRIER LLC 362   2026-01-19   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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