Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 410 [Rate centres in NPA 410] [Dial plan for NPA 410]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-530 2 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-530 3 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-530 4 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-530 5 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-530 6 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-530 7 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-530 8 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-530 9 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-531 A Columbia MD CLVLMDCERP0  9212 VERIZON MARYLAND, INC. 238   2024-01-30   
410-532 A Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238      
410-533 A Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-534 A Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-534 0 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-534 1 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-534 2 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-534 3 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-534 4 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-534 5 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-534 6 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-534 7 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-534 8 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-534 9 Baltimore MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
410-535 A Prince Frederick MD PRFRMDPFRS1  9212 VERIZON MARYLAND, INC. 238      
410-536 A Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-536 0 Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-536 1 Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-536 2 Arbutus MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-28   
410-536 3 Arbutus MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2024-02-14   
410-536 4 Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-536 5 Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-536 6 Arbutus MD   145J TERRA NOVA TELECOM INC. 238   2024-02-14   
410-536 7 Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-536 8 Arbutus MD   145J TERRA NOVA TELECOM INC. 238   2021-01-27   
410-536 9 Arbutus MD ARBTMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-537 A Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-537 0 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-09-23   
410-537 1 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-537 2 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-537 3 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-537 4 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-537 5 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-537 6 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-537 7 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-537 8 Baltimore MD BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
410-537 9 Baltimore MD CLMAMDJTBMD  2589 US LEC OF MARYLAND, INC. 238   2016-02-01   
410-538 A Fork MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-538 1 Fork MD   876D ONVOY, LLC - MD 238   2024-03-07   
410-538 2 Fork MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-21   
410-538 3 Fork MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-538 4 Fork MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 >>

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.