Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 224 [Rate centres in NPA 224] [Dial plan for NPA 224]

NXX: 670

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
224-670 A Arlington Heights IL   6529 T-MOBILE USA, INC. 358   2025-11-17   
224-670 2 Arlington Heights IL   6529 T-MOBILE USA, INC. 358   2025-11-17   
224-670 3 Arlington Heights IL   6529 T-MOBILE USA, INC. 358   2025-11-17   
224-670 4 Arlington Heights IL   6529 T-MOBILE USA, INC. 358   2025-11-17   
224-670 5 Arlington Heights IL   6529 T-MOBILE USA, INC. 358   2025-11-17   
224-670 6 Arlington Heights IL   6529 T-MOBILE USA, INC. 358   2025-11-17   
224-670 7 Arlington Heights IL   6529 T-MOBILE USA, INC. 358   2025-11-17   
224-670 8 Arlington Heights IL   6529 T-MOBILE USA, INC. 358   2025-11-17   
224-670 9 Arlington Heights IL   6529 T-MOBILE USA, INC. 358   2025-11-17   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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