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: 321J HD CARRIER LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
914-200 7 Westchester Zone 1 NY   132   2014-08-01   
914-208 8 Ossining NY   132   2014-08-01   
914-222 7 Westchester Zone 2 NY   132   2014-08-01   
914-300 2 Westchester Zone 3 NY   132   2016-08-19   
914-300 5 Westchester Zone 3 NY NYCMNY37UMD  132   2016-08-19   
914-300 6 Westchester Zone 3 NY NYCMNY37UMD  132   2016-08-19   
914-300 7 Westchester Zone 3 NY NYCMNY37UMD  132   2016-08-19   
914-300 8 Westchester Zone 3 NY NYCMNY37UMD  132   2016-08-19   
914-300 9 Westchester Zone 3 NY NYCMNY37UMD  132   2016-08-19   
914-326 6 Pleasantville NY NYCMNY37UMD  132   2014-08-01   
914-348 8 Westchester Zone 4 NY   132   2014-08-01   
914-362 4 Mount Kisco NY   132   2014-08-01   
914-465 6 Westchester Zone 2 NY NYCMNY37UMD  132   2014-08-01   
914-485 5 North Salem NY   132   2014-08-02   
914-529 5 Westchester Zone 5 NY NYCMNY37UMD  132   2014-08-01   
914-594 9 Westchester Zone 7 NY NYCMNY37UMD  132   2012-03-04   
914-598 5 Westchester Zone 7 NY   132   2014-08-01   
914-603 0 Lakeland NY   132   2014-08-01   
914-705 7 Westchester Zone 8 NY NYCMNY37UMD  132   2014-08-01   
914-727 3 Westchester Zone 3 NY NYCMNY37UMD  132   2016-08-19   
914-727 5 Westchester Zone 3 NY NYCMNY37UMD  132   2016-08-19   
914-828 9 Armonk Village NY   132   2014-08-01   
914-908 7 Westchester Zone 9 NY NYCMNY37UMD  132   2014-08-01   
914-998 9 Westchester Zone 6 NY   132   2014-08-01   
914-999 7 Westchester Zone 3 NY   132   2014-08-01   
915-989 A El Paso TX   540   2025-06-21   
915-989 7 El Paso TX   540   2025-06-21   
915-989 8 El Paso TX   540   2025-06-21   
915-989 9 El Paso TX   540   2025-06-21   
916-656 1 Pleasant Grove CA   726   2016-06-12   
916-656 2 Pleasant Grove CA   726   2016-06-12   
916-656 4 Pleasant Grove CA   726   2016-06-12   
916-656 5 Pleasant Grove CA   726   2016-06-12   
916-656 6 Pleasant Grove CA   726   2016-08-26   
916-656 8 Pleasant Grove CA SCRMCA0105Z  726   2016-08-26   
916-702 0 Pleasant Grove CA SCRMCA0105Z  726   2016-08-26   
916-702 2 Pleasant Grove CA SCRMCA0105Z  726   2016-08-26   
917-409 9 New York City Zone 01 NY   132   2026-01-11   
917-410 9 New York City Zone 01 NY   132   2026-01-11   
918-796 4 Tulsa OK   538   2025-12-01   
918-796 6 Tulsa OK   538   2025-12-01   
918-796 7 Tulsa OK   538   2025-12-01   
920-384 A Green Bay WI GNBYWIELEMD  350      
920-384 9 Green Bay WI GNBYWIELEMD  350   2020-11-23   
920-466 A Green Bay WI   350   2025-09-08   
920-466 8 Green Bay WI   350   2025-09-08   
920-466 9 Green Bay WI   350   2025-09-08   
925-500 6 Martinez CA SNFCCA21XOZ  722   2016-06-06   
925-500 7 Martinez CA SNFCCA21XOZ  722   2016-06-06   
925-500 9 Martinez CA SNFCCA21XOZ  722   2016-06-06   

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

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