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: 207 [Rate centres in NPA 207] [Dial plan for NPA 207]

NXX: 503

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
207-503 A Scarborough ME PTLDMEFO06Z  454F ONVOY, LLC - ME 120      
207-503 0 Scarborough ME PTLDME02DS5  925H PEERLESS NETWORK OF MAINE, LLC- ME 120   2020-12-16   
207-503 2 Scarborough ME PTLDMEFO06Z  454F ONVOY, LLC - ME 120   2020-01-13   
207-503 3 Scarborough ME PTLDMEFO06Z  454F ONVOY, LLC - ME 120   2020-05-24   
207-503 4 Scarborough ME PTLDMEFO06Z  454F ONVOY, LLC - ME 120   2021-11-13   
207-503 5 Scarborough ME PTLDMEFO06Z  454F ONVOY, LLC - ME 120   2021-01-01   
207-503 8 Scarborough ME   454F ONVOY, LLC - ME 120   2022-05-20   
207-503 9 Scarborough ME PTLDMEFOX6Z  382D LEVEL 3 COMMUNICATIONS, LLC - ME 120   2021-11-18   

Last updated: Thu, 04 Aug 2022 23:14:42 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.