Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 6630 USA MOBILITY WIRELESS, INC.

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
410-351 A Baltimore MD HNVAMDAECM0  238      
410-373 A Towson MD HNVAMDAECM0  238      
410-389 A Baltimore MD HNVAMDAECM0  238      
410-408 A Towson MD HNVAMDAECM0  238      
410-434 A Towson MD HNVAMDAECM0  238      
410-445 A Baltimore MD HNVAMDAECM0  238      
410-447 A Columbia MD HNVAMDAECM0  238      
410-460 A Elkridge MD HNVAMDAECM0  238      
410-473 A Towson MD HNVAMDAECM0  238      
410-475 A Towson MD HNVAMDAECM0  238      
410-478 A Elkridge MD HNVAMDAECM0  238      
410-492 A Towson MD HNVAMDAECM0  238      
410-607 A Towson MD HNVAMDAECM0  238      
410-640 A Baltimore MD HNVAMDAECM0  238      
410-678 A Elkridge MD HNVAMDAECM0  238      
410-681 A Towson MD HNVAMDAECM0  238      
410-731 A Annapolis MD HNVAMDAECM0  238      
410-743 A Baltimore MD HNVAMDAECM0  238      
410-748 A Ellicott City MD HNVAMDAECM0  238      
410-806 A Towson MD HNVAMDAECM0  238      
410-839 A Towson MD HNVAMDAECM0  238      
410-890 A Towson MD HNVAMDAECM0  238      
410-894 A Towson MD HNVAMDAECM0  238      
410-899 A Towson MD HNVAMDAECM0  238      
410-909 A Elkridge MD HNVAMDAECM0  238      
410-932 A Elkridge MD HNVAMDAECM0  238      
412-270 A Pittsburgh Suburban Zone 14 PA GRTRPAABCM8  234      
412-272 A Pittsburgh Suburban Zone 14 PA GRTRPAABCM8  234      
412-280 A Pittsburgh Zone 1 PA GRTRPAABCM8  234      
412-300 A Pittsburgh Suburban Zone 14 PA GRTRPAABCM8  234      
412-581 A Pittsburgh Zone 1 PA GRTRPAABCM8  234      
412-590 A Pittsburgh Zone 2 PA   234      
412-591 A Pittsburgh Zone 2 PA   234      
412-597 A Pittsburgh Suburban Zone 14 PA GRTRPAABCM8  234      
412-602 A Pittsburgh Zone 6 PA GRTRPAABCM8  234      
412-617 A Pittsburgh Suburban Zone 14 PA GRTRPAABCM8  234      
412-619 A Pittsburgh Suburban Zone 14 PA GRTRPAABCM8  234      
412-640 A Pittsburgh Suburban Zone 14 PA GRTRPAABCM8  234      
412-649 A Pittsburgh Suburban Zone 14 PA GRTRPAABCM8  234      
412-669 A Pittsburgh Zone 6 PA GRTRPAABCM8  234      
412-686 A Pittsburgh Suburban Zone 14 PA GRTRPAABCM8  234      
412-698 A Pittsburgh Zone 1 PA GRTRPAABCM8  234      
412-718 A Pittsburgh Zone 2 PA GRTRPAABCM8  234      
412-739 A Pittsburgh Zone 2 PA GRTRPAABCM8  234      
412-750 A Pittsburgh Zone 1 PA GRTRPAABCM8  234      
412-786 A Pittsburgh Zone 2 PA GRTRPAABCM8  234      
412-917 A Pittsburgh Zone 7 PA GRTRPAABCM8  234      
412-949 A Pittsburgh Zone 7 PA GRTRPAABCM8  234      
412-955 A Pittsburgh Zone 2 PA GRTRPAABCM8  234      
412-958 A Pittsburgh Zone 7 PA GRTRPAABCM8  234      

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Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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