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
415-253 A San Francisco: Central DA CA SNFCCA21XEZ  722      
415-270 A San Francisco: Central DA CA SNFCCA21XEZ  722      
415-280 A San Francisco: Central DA CA SNFCCA21XEZ  722      
415-303 A San Francisco: Central DA CA SNFCCA21XEZ  722      
415-313 A San Francisco: Central DA CA SNFCCA21XEZ  722      
415-443 A San Francisco: Juniper DA CA SNFCCA21XEZ  722      
415-540 A San Francisco: Central DA CA SNFCCA21XEZ  722      
415-560 A San Francisco: Central DA CA SNFCCA21XEZ  722      
415-607 A San Francisco: Central DA CA SNFCCA21XEZ  722      
415-698 A San Francisco: Central DA CA SNFCCA21XEZ  722      
415-708 A San Francisco: Central DA CA SNFCCA21XEZ  722      
415-709 A San Francisco: Central DA CA SNFCCA21XEZ  722      
415-739 A San Francisco: Central DA CA SNFCCA21XEZ  722      
415-804 A San Francisco: Central DA CA SNFCCA21XEZ  722      
415-809 A San Francisco: Central DA CA SNFCCA21XEZ  722      
419-316 A New Riegel OH TOLDOH21DS4  326      
419-323 A Toledo OH TOLDOH21DS4  326      
419-328 A Toledo OH TOLDOH21DS4  326      
419-412 A Findlay OH TOLDOH21DS4  326      
419-414 A Fremont OH TOLDOH21DS4  326      
419-440 A Toledo OH TOLDOH21DS4  326      
419-444 A Toledo OH TOLDOH21DS4  326      
419-449 A Toledo OH TOLDOH21DS4  326      
419-743 A Toledo OH TOLDOH21DS4  326      
423-221 A Chattanooga TN CHTGTNMAXTX  472      
423-409 A Bulls Gap TN KNVLTNMA78Z  474      
423-412 A Johnson City TN JHCYTNXCXNX  956      
423-469 A Newport TN KNVLTNMA78Z  474      
423-514 A Chattanooga TN CHTGTNMAXTX  472      
423-655 A Chattanooga TN CHTGTNMAXTX  472      
423-795 A Johnson City TN JHCYTNXCXNX  956      
425-323 A Issaquah WA STTLWA06X8X  674      
425-631 A Bellevue WA STTLWA06X8X  674      
434-940 A Lynchburg VA LYBGVA98XHX  250      
435-204 A Tooele UT SLKDUTVF0MD  660      
435-235 A Cedar City UT SLKDUTVF0MD  660      
440-203 A Lorain OH INDPOHEEAMD  320      
440-270 A Willoughby OH INDPOHEEAMD  320      
440-301 A Willoughby OH INDPOHEEAMD  320      
440-302 A Willoughby OH INDPOHEEAMD  320      
440-303 A Willoughby OH INDPOHEEAMD  320      
440-304 A Willoughby OH INDPOHEEAMD  320      
440-380 A Victory OH INDPOHEEAMD  320      
440-507 A Willoughby OH INDPOHEEAMD  320      
440-562 A Willoughby OH INDPOHEEAMD  320      
440-612 A Willoughby OH INDPOHEEAMD  320      
440-680 A Willoughby OH INDPOHEEAMD  320      
440-758 A Elyria OH INDPOHEEAMD  320      
440-784 A Wickliffe OH INDPOHEEAMD  320      
440-980 A Willoughby OH INDPOHEEAMD  320      

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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