Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 253 [Rate centres in NPA 253] [Dial plan for NPA 253]

NXX: 275

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
253-275 A Auburn WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
253-275 0 Auburn WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
253-275 1 Auburn WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
253-275 2 Auburn WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
253-275 3 Auburn WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
253-275 4 Auburn WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
253-275 5 Auburn WA   073H TELNYX LLC 674   2021-09-17   
253-275 6 Auburn WA   145J TERRA NOVA TELECOM INC. 674   2021-09-28   
253-275 7 Auburn WA   6529 T-MOBILE USA, INC. 674   2006-01-29   
253-275 8 Auburn WA   6529 T-MOBILE USA, INC. 674   2006-06-08   
253-275 9 Auburn WA   516J TON80 COMMUNICATIONS, LLC 674   2021-06-08   

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

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