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: 240 [Rate centres in NPA 240] [Dial plan for NPA 240]

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-587 7 Leonardtown MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-587 8 Leonardtown MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-587 9 Leonardtown MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-588 A Grantsville MD FRDRMDFRXVX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 240      
240-588 0 Grantsville MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
240-588 1 Grantsville MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
240-588 2 Grantsville MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
240-588 3 Grantsville MD FRDRMDFRXVX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 240      
240-588 4 Grantsville MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
240-588 5 Grantsville MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
240-588 6 Grantsville MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
240-588 7 Grantsville MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
240-588 8 Grantsville MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
240-588 9 Grantsville MD   5562 METROPCS, INC. 240      
240-589 A McCoole MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-589 0 McCoole MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-589 1 McCoole MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240      
240-589 2 McCoole MD   145J TERRA NOVA TELECOM INC. 240      
240-589 3 McCoole MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
240-589 4 McCoole MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
240-589 5 McCoole MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-589 6 McCoole MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
240-589 7 McCoole MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-589 8 McCoole MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
240-589 9 McCoole MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-590 A Washington Zone 12 MD BTVLMD127MD  5562 METROPCS, INC. 236      
240-590 0 Washington Zone 12 MD WASHDC126MD  964H BARR TELL USA, INC. 236      
240-590 1 Washington Zone 12 MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-590 2 Washington Zone 12 MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-590 3 Washington Zone 12 MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-590 4 Washington Zone 12 MD BTVLMD127MD  5562 METROPCS, INC. 236      
240-590 5 Washington Zone 12 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-590 6 Washington Zone 12 MD SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-590 7 Washington Zone 12 MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-590 8 Washington Zone 12 MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-590 9 Washington Zone 12 MD BTVLMD127MD  5562 METROPCS, INC. 236      
240-591 A Hagerstown MD FRDRMDFRXQX  836G SHENTEL COMMUNICATIONS, LLC. - MD 240      
240-591 0 Hagerstown MD HGTWMD53DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 240      
240-591 1 Hagerstown MD FRDRMDFRXQX  836G SHENTEL COMMUNICATIONS, LLC. - MD 240      
240-591 2 Hagerstown MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
240-591 3 Hagerstown MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-591 4 Hagerstown MD FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240      
240-591 5 Hagerstown MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
240-591 6 Hagerstown MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
240-591 7 Hagerstown MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
240-591 8 Hagerstown MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240      
240-591 9 Hagerstown MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
240-592 A Washington Zone 13 MD LARLMDLRDS0  9212 VERIZON MARYLAND, INC. 236      
240-592 0 Washington Zone 13 MD   9212 VERIZON MARYLAND, INC. 236      
240-592 1 Washington Zone 13 MD   9212 VERIZON MARYLAND, INC. 236      
240-592 2 Washington Zone 13 MD   9212 VERIZON MARYLAND, INC. 236      
240-592 3 Washington Zone 13 MD   9212 VERIZON MARYLAND, INC. 236      
240-592 4 Washington Zone 13 MD   9212 VERIZON MARYLAND, INC. 236      
240-592 5 Washington Zone 13 MD   9212 VERIZON MARYLAND, INC. 236      
240-592 6 Washington Zone 13 MD   9212 VERIZON MARYLAND, INC. 236      
240-592 7 Washington Zone 13 MD   9212 VERIZON MARYLAND, INC. 236      
240-592 8 Washington Zone 13 MD   9212 VERIZON MARYLAND, INC. 236      
240-592 9 Washington Zone 13 MD   9212 VERIZON MARYLAND, INC. 236      
240-593 A Laurel (Baltimore LATA) MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
240-593 0 Laurel (Baltimore LATA) MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
240-593 1 Laurel (Baltimore LATA) MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
240-593 2 Laurel (Baltimore LATA) MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
240-593 3 Laurel (Baltimore LATA) MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
240-593 4 Laurel (Baltimore LATA) MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
240-593 5 Laurel (Baltimore LATA) MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
240-593 6 Laurel (Baltimore LATA) MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
240-593 7 Laurel (Baltimore LATA) MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
240-593 8 Laurel (Baltimore LATA) MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
240-593 9 Laurel (Baltimore LATA) MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
240-594 A Bittinger MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-594 0 Bittinger MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-594 1 Bittinger MD HGTWMD530MD  073H TELNYX LLC 240      
240-594 2 Bittinger MD   145J TERRA NOVA TELECOM INC. 240      
240-594 3 Bittinger MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240      
240-594 4 Bittinger MD FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240      
240-594 5 Bittinger MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-594 6 Bittinger MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
240-594 7 Bittinger MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
240-594 8 Bittinger MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-594 9 Bittinger MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-595 A Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-595 0 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-595 1 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-595 2 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-595 3 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-595 4 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-595 5 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-595 6 Washington Zone 3 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-595 7 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-595 8 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-595 9 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-596 A Ashton MD CHCHMDBEPS0  2593 CORE COMMUNICATIONS, INC.- MD 236   2024-01-16   
240-596 0 Ashton MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-596 1 Ashton MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-596 2 Ashton MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-596 3 Ashton MD WASHDC125MD  197D VONAGE AMERICA LLC 236      
240-596 4 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-596 5 Ashton MD WASHDC125MD  197D VONAGE AMERICA LLC 236      
240-596 6 Ashton MD ARTNVAARXJY  2593 CORE COMMUNICATIONS, INC.- MD 236      
240-596 7 Ashton MD ARTNVAARXJY  2593 CORE COMMUNICATIONS, INC.- MD 236      

<< 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 >>

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.