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: 321

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
207-321 A Portland ME   829J PAETEC ITEL, LLC 120   2025-04-29   
207-321 0 Portland ME   829J PAETEC ITEL, LLC 120      
207-321 1 Portland ME WSBKMEPQAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 120   2007-03-29   
207-321 2 Portland ME   829J PAETEC ITEL, LLC 120      
207-321 3 Portland ME   829J PAETEC ITEL, LLC 120      
207-321 4 Portland ME   829J PAETEC ITEL, LLC 120      
207-321 5 Portland ME   829J PAETEC ITEL, LLC 120      
207-321 6 Portland ME   829J PAETEC ITEL, LLC 120      
207-321 7 Portland ME   829J PAETEC ITEL, LLC 120      
207-321 8 Portland ME WSBKMEPQAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 120   2007-03-29   
207-321 9 Portland ME WSBKMEPQAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 120   2007-03-29   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.