Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 321J HD CARRIER LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
442-235 5 Barstow: Barstow DA CA LSANCARCY1X  730   2014-08-15   
442-243 3 Victorville: Victorville DA CA LSANCARCY1X  730   2014-08-15   
443-227 3 Port Deposit MD BLTMMDCHXVX  238   2016-05-14   
443-227 6 Port Deposit MD BLTMMDCHXVX  238   2016-05-14   
443-227 8 Port Deposit MD BLTMMDCHXVX  238   2016-05-14   
443-227 9 Port Deposit MD BLTMMDCHXVX  238   2016-05-14   
443-412 6 Churchville MD BLTMMDCHXVX  238   2016-05-14   
443-464 3 Churchville MD BLTMMDCHXVX  238   2016-05-14   
443-464 6 Churchville MD   238   2016-05-14   
443-464 7 Churchville MD BLTMMDCHXVX  238   2016-05-14   
443-568 7 Arbutus MD BLTMMDCHXVX  238   2020-05-01   
443-661 7 Waterloo MD BLTMMDCHXVX  238   2020-05-02   
443-731 7 Port Deposit MD BLTMMDCHXVX  238   2016-05-14   
443-747 6 Port Deposit MD BLTMMDCHXVX  238   2016-05-14   
443-755 2 Waterloo MD BLTMMDCHXVX  238   2016-05-14   
443-755 3 Waterloo MD   238   2016-05-14   
443-755 4 Waterloo MD BLTMMDCHXVX  238   2016-05-14   
443-755 6 Waterloo MD BLTMMDCHXVX  238   2016-05-14   
443-755 7 Waterloo MD BLTMMDCHXVX  238   2016-05-14   
445-207 A Philadelphia Zone 1 PA PHLAPAMKXLX  228      
445-207 8 Philadelphia Zone 1 PA PHLAPAMKXLX  228   2021-10-09   
445-207 9 Philadelphia Zone 1 PA PHLAPAMKXLX  228   2021-10-09   
447-252 A Mattoon IL MTONILXCXMX  976      
447-252 9 Mattoon IL MTONILXCXMX  976   2023-05-11   
447-312 0 Mattoon IL   976   2026-01-08   
447-312 1 Mattoon IL   976   2026-01-08   
447-446 A Champaign-Urbana IL CHMPILCPXDY  370      
447-446 9 Champaign-Urbana IL CHMPILCPXDY  370   2021-04-11   
447-448 A Springfield IL SPFDILESXZX  374      
447-448 9 Springfield IL SPFDILESXZX  374   2021-04-11   
447-867 7 Westville IL   370   2025-10-11   
448-221 A Pensacola FL PNSCFLBL13Z  44813      
448-221 8 Pensacola FL PNSCFLBL13Z  44813   2023-05-11   
448-221 9 Pensacola FL PNSCFLBL13Z  44813   2023-05-11   
448-338 A Panama City FL   45009   2026-01-22   
448-338 6 Panama City FL   45009   2026-01-22   
448-338 7 Panama City FL   45009   2026-01-22   
448-338 8 Panama City FL   45009   2026-01-22   
448-338 9 Panama City FL   45009   2026-01-22   
448-449 A Tallahassee FL   953   2025-06-20   
448-449 7 Tallahassee FL   953   2025-06-20   
448-449 8 Tallahassee FL   953   2025-06-20   
448-449 9 Tallahassee FL   953   2025-06-20   
458-228 5 Sumpter OR PTLDOR13XEX  672   2020-09-27   
458-228 6 Sumpter OR PTLDOR13XEX  672   2020-09-27   
458-298 A Eugene OR EUGNOR147MD  670      
458-298 8 Eugene OR EUGNOR147MD  670   2023-05-11   
458-298 9 Eugene OR EUGNOR147MD  670   2023-05-11   
463-239 A Indianapolis IN IPLWIN75X0X  336      
463-239 9 Indianapolis IN IPLWIN75X0X  336   2020-10-09   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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