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: 824J OPENTACT INC.

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
940-754 7 Burkburnett TX   548   2026-09-13   
943-468 A Atlanta Northeast GA   438   2026-09-13   
943-468 4 Atlanta Northeast GA   438   2026-09-13   
948-255 5 Williamsburg VA   252   2026-09-13   
948-639 A Norfolk Zone 2 VA NRFLVAJYTMD  252   2026-05-09   
948-639 4 Norfolk Zone 2 VA NRFLVAJYTMD  252   2026-05-09   
949-890 5 Trabuco CA   730   2026-09-21   
956-745 7 Falcon Heights TX   568   2026-09-13   
970-802 1 South Cheyenne CO   654   2026-09-12   
979-404 7 Fayetteville TX   570   2026-09-13   
983-277 A Denver CO DNVRCO26XNY  656   2026-03-09   
983-277 4 Denver CO DNVRCO26XNY  656   2026-03-09   
983-587 A Denver CO DNVRCO26XJY  656   2026-05-10   
983-587 8 Denver CO DNVRCO26XJY  656   2026-05-10   
989-504 7 St Charles MI   344   2026-09-12   

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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