Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 240 [Rate centres in NPA 240] [Dial plan for NPA 240]

NXX: 540

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-540 A Washington Zone 13 (Baltimore LATA) MD BLTMMDCHX6X  530H WIDE VOICE, LLC - MD 238      
240-540 0 Washington Zone 13 (Baltimore LATA) MD BLTMMDCHX7X  073H TELNYX LLC 238      
240-540 1 Washington Zone 13 (Baltimore LATA) MD BLTMMDCHX6X  530H WIDE VOICE, LLC - MD 238      
240-540 3 Washington Zone 13 (Baltimore LATA) MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
240-540 4 Washington Zone 13 (Baltimore LATA) MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
240-540 5 Washington Zone 13 (Baltimore LATA) MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
240-540 6 Washington Zone 13 (Baltimore LATA) MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
240-540 7 Washington Zone 13 (Baltimore LATA) MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
240-540 8 Washington Zone 13 (Baltimore LATA) MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
240-540 9 Washington Zone 13 (Baltimore LATA) MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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