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.

Strongsville, OH

1 2 3 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
440-212 A INDPOHEB9MD  6529 T-MOBILE USA, INC. 320      
440-212 0 INDPOHEB9MD  6529 T-MOBILE USA, INC. 320      
440-212 1 INDPOHEB9MD  6529 T-MOBILE USA, INC. 320      
440-212 2 INDPOHEB9MD  6529 T-MOBILE USA, INC. 320      
440-212 3 INDPOHEB9MD  6529 T-MOBILE USA, INC. 320      
440-212 4 INDPOHEB9MD  6529 T-MOBILE USA, INC. 320      
440-212 5 INDPOHEB9MD  6529 T-MOBILE USA, INC. 320   2005-06-26   
440-212 6 INDPOHEB9MD  6529 T-MOBILE USA, INC. 320   2007-03-23   
440-212 7 CLEVOHIWDS0  7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 320   2004-10-20   
440-212 8 INDPOHEB9MD  6529 T-MOBILE USA, INC. 320   2005-11-15   
440-212 9 INDPOHEB9MD  6529 T-MOBILE USA, INC. 320      
440-238 A SGVLOH2323G  9321 OHIO BELL TEL CO 320      
440-268 A SGVLOH2323G  9321 OHIO BELL TEL CO 320      
440-268 0 SGVLOH2323G  9321 OHIO BELL TEL CO 320      
440-268 1 CLEVOH02RMD  7532 TELEPORT COMMUNICATIONS AMERICA, LLC - OH 320   2004-05-28   
440-268 2 SGVLOH2323G  9321 OHIO BELL TEL CO 320      
440-268 3 SGVLOH2323G  9321 OHIO BELL TEL CO 320      
440-268 4 SGVLOH2323G  9321 OHIO BELL TEL CO 320      
440-268 5 SGVLOH2323G  9321 OHIO BELL TEL CO 320      
440-268 6 CLEVOH024MD  516C AT&T CORP. 320   2006-05-02   
440-268 7 SGVLOH2323G  9321 OHIO BELL TEL CO 320      
440-268 8 BEREOHBPRP0  735E SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 320   2007-08-31   
440-268 9 SGVLOH2323G  9321 OHIO BELL TEL CO 320      
440-334 A CLEVOHBBGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 320      
440-334 0 CLEVOHBBGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 320   2008-09-04   
440-334 1 CLEVOHIWDS0  7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 320   2007-05-13   
440-334 2 CLEVOHEKX5X  460K FIRST COMMUNICATIONS, LLC 320   2008-05-31   
440-334 3 CLEVOHBBGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 320   2009-06-21   
440-334 4 CLEVOHBBGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 320   2009-10-17   
440-334 5 CLEVOHIWDS0  7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 320   2006-11-10   
440-334 6 CLEVOHBBGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 320   2007-12-10   
440-334 7 CLEVOHBBGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 320   2007-05-17   
440-334 8 CLEVOHBBGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 320   2006-08-10   
440-334 9 CLEVOHBBGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 320   2006-01-19   
440-378 A CLEVOH975MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 320      
440-378 0 CLEVOH975MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 320      
440-378 1 CLEVOHEKDS0  464C ONVOY, LLC - OH 320   2004-08-27   
440-378 2 CLEVOHEKDS0  464C ONVOY, LLC - OH 320   2004-08-27   
440-378 3 CLEVOHEKDS0  464C ONVOY, LLC - OH 320   2004-08-27   
440-378 4 CLEVOH975MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 320      
440-378 5 CLEVOH975MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 320      
440-378 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 320   2025-08-18   
440-378 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 320   2025-08-18   
440-378 8 CLEVOHEKDS0  464C ONVOY, LLC - OH 320   2004-08-27   
440-378 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 320   2025-08-18   
440-572 A SGVLOH2323G  9321 OHIO BELL TEL CO 320      
440-580 A   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 320      
440-580 1 CLEVOHEKDS0  464C ONVOY, LLC - OH 320   2004-08-27   
440-580 2   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 320      
440-580 3   464C ONVOY, LLC - OH 320      

1 2 3 >>

Last updated: Sun, 17 May 2026 03:26:51 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.