Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
309-803 1 Canton IL   368   2020-10-11   
312-682 A Chicago Zone 01-Calumet IL CHCGILWBXSZ  358      
312-682 1 Chicago Zone 01-Calumet IL   358   2020-07-16   
312-682 6 Chicago Zone 01-Calumet IL   358   2020-08-07   
312-682 7 Chicago Zone 01-Calumet IL   358   2020-08-07   
313-385 A Detroit Zone 1 MI SFLDMIMK0MD  340      
313-385 1 Detroit Zone 1 MI   340   2020-06-20   
316-369 A Wichita KS WCHTKSBRXDZ  532      
316-369 1 Wichita KS   532   2020-10-27   
331-271 8 Hinsdale IL   358   2020-12-20   
331-271 9 Hinsdale IL   358   2020-12-20   
332-234 A New York City Zone 01 NY NYCMNY13XJX  132      
332-234 1 New York City Zone 01 NY   132   2020-08-09   
332-239 A New York City Zone 01 NY NYCMNY13XJX  132   2021-02-08   
332-239 1 New York City Zone 01 NY   132   2021-02-08   
332-239 2 New York City Zone 01 NY   132   2021-02-08   
346-428 A Houston TX HSTNTXJAXJY  560   2021-01-06   
346-428 1 Houston TX   560   2020-09-25   
346-428 2 Houston TX   560   2020-09-25   
346-428 3 Houston TX   560   2020-09-25   
346-428 4 Houston TX   560   2020-09-25   
346-428 5 Houston TX   560   2020-09-25   
346-428 6 Houston TX   560   2020-09-25   
360-583 A Vancouver WA PTLDOR13XDX  672      
360-583 1 Vancouver WA   672   2020-10-27   
360-638 5 Kingston WA   674   2020-12-12   
364-200 1 Jordan KY   468   2020-10-19   
364-204 A Oak Grove KY NSVLTNMTYOZ  470      
364-204 1 Oak Grove KY   470   2020-10-27   
385-371 A Salt Lake City UT   660   2021-04-05   
385-371 1 Salt Lake City UT   660   2021-04-05   
406-312 A Bozeman MT BLNGMT93AMD  650      
406-312 2 Bozeman MT   650   2020-07-17   
406-574 8 Silvertip MT   654   2020-10-11   
410-824 0 Waterloo (Washington DC LATA) MD   236   2021-01-16   
412-730 A Pittsburgh Zone 1 PA PITBPADTXQX  234      
412-730 1 Pittsburgh Zone 1 PA   234   2020-12-26   
414-260 A Milwaukee Zone 1 WI MILBWI120MD  356      
414-260 1 Milwaukee Zone 1 WI   356   2020-07-20   
434-240 A Chatham VA LYBGVACHXCX  250      
434-240 1 Chatham VA   250   2020-10-11   
434-257 A Charlottesville VA CHVLVAXAXPY  928      
434-257 1 Charlottesville VA   928   2020-11-20   
435-281 A Coalville UT   660   2021-03-25   
435-281 1 Coalville UT   660   2021-03-25   
435-296 1 Glen Canyon City UT   666   2021-02-20   
445-202 A Philadelphia Zone 1 PA PHLAPAMKXHX  228      
445-202 1 Philadelphia Zone 1 PA   228   2020-11-08   
458-252 A Oregon Slope OR BOISIDMAXKY  652      
458-252 1 Oregon Slope OR   652   2020-11-08   

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Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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