Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 0728 SPRINGPORT TEL. CO.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
517-857 A Springport MI SPPTMIXIDS0  346      

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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