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.

NPA: 838 [Rate centres in NPA 838] [Dial plan for NPA 838]

NXX: 438

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
838-438 A Salem NY ALBYNYPSDS5  1215 CORETEL NEW YORK, INC. - NY 134      
838-438 0 Salem NY   818H PEERING HUB, INC. - NY 134   2021-02-03   
838-438 1 Salem NY   384C ONVOY, LLC- NY 134   2021-01-29   
838-438 2 Salem NY   1215 CORETEL NEW YORK, INC. - NY 134   2019-05-22   
838-438 3 Salem NY   515J IP HORIZON LLC 134   2024-08-16   
838-438 4 Salem NY   1215 CORETEL NEW YORK, INC. - NY 134   2019-04-12   
838-438 5 Salem NY   193C SLIC NETWORK SOLUTIONS, INC. - NY 134   2020-09-24   
838-438 6 Salem NY   1215 CORETEL NEW YORK, INC. - NY 134   2019-05-22   
838-438 7 Salem NY   1215 CORETEL NEW YORK, INC. - NY 134   2019-05-22   
838-438 8 Salem NY   384C ONVOY, LLC- NY 134   2021-01-29   
838-438 9 Salem NY   073H TELNYX LLC 134   2022-04-29   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.