Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 730

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-730 A Essex MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-730 0 Essex MD   829J PAETEC ITEL, LLC 238      
443-730 1 Essex MD   829J PAETEC ITEL, LLC 238      
443-730 2 Essex MD   829J PAETEC ITEL, LLC 238      
443-730 3 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-08-14   
443-730 4 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-08-14   
443-730 5 Essex MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-01-14   
443-730 6 Essex MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2016-03-29   
443-730 7 Essex MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-27   
443-730 8 Essex MD   829J PAETEC ITEL, LLC 238      
443-730 9 Essex MD   829J PAETEC ITEL, LLC 238      

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

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