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: 774 [Rate centres in NPA 774] [Dial plan for NPA 774]

NXX: 443

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
774-443 A Worcester MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
774-443 0 Worcester MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2008-03-03   
774-443 1 Worcester MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2008-03-03   
774-443 2 Worcester MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2008-03-03   
774-443 3 Worcester MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2008-03-03   
774-443 4 Worcester MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2008-03-03   
774-443 5 Worcester MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2008-03-03   
774-443 6 Worcester MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2008-03-03   
774-443 7 Worcester MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2008-03-03   
774-443 8 Worcester MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2008-03-03   
774-443 9 Worcester MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2008-03-03   

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.