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: 544

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-544 A Pikesville MD PIVLMDPKXGX  829J PAETEC ITEL, LLC 238   2025-04-01   
443-544 0 Pikesville MD PIVLMDPKXGX  829J PAETEC ITEL, LLC 238      
443-544 1 Pikesville MD PIVLMDPKXGX  829J PAETEC ITEL, LLC 238      
443-544 2 Pikesville MD PIVLMDPKXGX  829J PAETEC ITEL, LLC 238      
443-544 3 Pikesville MD PIVLMDPKXGX  829J PAETEC ITEL, LLC 238      
443-544 4 Pikesville MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-11-19   
443-544 5 Pikesville MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-03-10   
443-544 6 Pikesville MD PIVLMDPKXGX  829J PAETEC ITEL, LLC 238      
443-544 7 Pikesville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2013-04-10   
443-544 8 Pikesville MD PIVLMDPKXGX  829J PAETEC ITEL, LLC 238      
443-544 9 Pikesville MD PIVLMDPKXGX  829J PAETEC ITEL, LLC 238      

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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