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: 330 [Rate centres in NPA 330] [Dial plan for NPA 330]

NXX: 261

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
330-261 A Youngstown OH YNTWOH78ZMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 322      
330-261 0 Youngstown OH YNTWOH78ZMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 322      
330-261 1 Youngstown OH YNTWOH78X7X  6529 T-MOBILE USA, INC. 322   2005-07-22   
330-261 2 Youngstown OH YNTWOH78X7X  6529 T-MOBILE USA, INC. 322   2004-09-24   
330-261 3 Youngstown OH YNTWOH78X7X  6529 T-MOBILE USA, INC. 322   2004-06-15   
330-261 4 Youngstown OH YNTWOH78X7X  6529 T-MOBILE USA, INC. 322   2006-11-02   
330-261 5 Youngstown OH YNTWOH78X7X  6529 T-MOBILE USA, INC. 322   2005-06-19   
330-261 6 Youngstown OH YNTWOH78X7X  6529 T-MOBILE USA, INC. 322   2005-08-21   
330-261 7 Youngstown OH YNTWOH78X7X  6529 T-MOBILE USA, INC. 322   2008-02-21   
330-261 8 Youngstown OH YNTWOH78X7X  6529 T-MOBILE USA, INC. 322   2005-10-15   
330-261 9 Youngstown OH YNTWOH78X7X  6529 T-MOBILE USA, INC. 322   2005-12-30   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.