Local Calling Guide

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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-993 2 Elkton MD   6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 238   2012-10-05   
443-993 3 Elkton MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2011-05-18   
443-993 4 Elkton MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2011-05-18   
443-993 5 Elkton MD   876D ONVOY, LLC - MD 238   2014-10-28   
443-993 6 Elkton MD   6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 238   2011-07-08   
443-993 7 Elkton MD   6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 238   2011-07-08   
443-993 8 Elkton MD   876D ONVOY, LLC - MD 238   2014-10-28   
443-993 9 Elkton MD   5562 METROPCS, INC. 238   2011-02-10   
443-994 A Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-995 A Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-996 A Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-997 A Baltimore MD BLTMMDUVDS0  9212 VERIZON MARYLAND, INC. 238      
443-998 A Parkville MD PKVLMDPKDS0  9212 VERIZON MARYLAND, INC. 238      
443-998 0 Parkville MD   9212 VERIZON MARYLAND, INC. 238      
443-998 1 Parkville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-12-09   
443-998 2 Parkville MD   876D ONVOY, LLC - MD 238   2024-02-23   
443-998 3 Parkville MD   145J TERRA NOVA TELECOM INC. 238   2024-02-15   
443-998 4 Parkville MD   876D ONVOY, LLC - MD 238   2024-02-23   
443-998 5 Parkville MD   876D ONVOY, LLC - MD 238   2024-02-23   
443-998 6 Parkville MD   876D ONVOY, LLC - MD 238   2024-02-23   
443-998 7 Parkville MD   876D ONVOY, LLC - MD 238   2016-01-11   
443-998 8 Parkville MD   876D ONVOY, LLC - MD 238   2014-12-31   
443-998 9 Parkville MD   876D ONVOY, LLC - MD 238   2014-12-31   
443-999 A Baltimore MD BLTMMDCH06T  9212 VERIZON MARYLAND, INC. 238      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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