Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 410 [Rate centres in NPA 410] [Dial plan for NPA 410]

NXX: 399

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-399 A Bel Air MD CRDFMDCDRS0  9212 VERIZON MARYLAND, INC. 238      
410-399 0 Bel Air MD CRDFMDCDRS0  9212 VERIZON MARYLAND, INC. 238      
410-399 1 Bel Air MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2011-10-11   
410-399 2 Bel Air MD DRTNMDDRRS0  9212 VERIZON MARYLAND, INC. 238      
410-399 3 Bel Air MD BLTMMDCHAMD  1958 ATX TELECOMMUNICATIONS SERVICES, LTD 238   2003-03-11   
410-399 4 Bel Air MD CCVLMDCHRS0  9212 VERIZON MARYLAND, INC. 238      
410-399 5 Bel Air MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-05   
410-399 6 Bel Air MD BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-399 7 Bel Air MD BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-399 8 Bel Air MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238   2011-10-11   
410-399 9 Bel Air MD BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      

Last updated: Tue, 04 May 2021 15:04:27 UTC

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