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: 539 [Rate centres in NPA 539] [Dial plan for NPA 539]

NXX: 255

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
539-255 A Picher OK TULSOKTBXHY  409F ONVOY, LLC - OK 538      
539-255 2 Picher OK   145J TERRA NOVA TELECOM INC. 538      
539-255 3 Picher OK TULSOKTBXHZ  516J TON80 COMMUNICATIONS, LLC 538      
539-255 4 Picher OK TULSOKTBXHY  409F ONVOY, LLC - OK 538      
539-255 5 Picher OK TULSOKTBXHY  409F ONVOY, LLC - OK 538      
539-255 6 Picher OK TULSOKTBXHY  409F ONVOY, LLC - OK 538      
539-255 7 Picher OK TLSAOKSMBMD  516C AT&T CORP. 538      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.