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 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-910 7 Frederick MD FRDRMDFR9MD  5562 METROPCS, INC. 240   2022-12-02   
240-910 8 Frederick MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2021-07-08   
240-910 9 Frederick MD CMLDMDCMZMD  566J RADIANTIQ LLC 240   2021-04-30   
240-912 A Gaithersburg MD TYCRVA03AMD  2589 US LEC OF MARYLAND, INC. 236      
240-912 0 Gaithersburg MD TYCRVA03AMD  2589 US LEC OF MARYLAND, INC. 236      
240-912 1 Gaithersburg MD TYCRVA03AMD  2589 US LEC OF MARYLAND, INC. 236      
240-912 2 Gaithersburg MD TYCRVA03AMD  2589 US LEC OF MARYLAND, INC. 236      
240-912 3 Gaithersburg MD TYCRVA03AMD  2589 US LEC OF MARYLAND, INC. 236      
240-912 4 Gaithersburg MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2006-12-12   
240-912 5 Gaithersburg MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2006-12-12   
240-912 6 Gaithersburg MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2006-12-12   
240-912 7 Gaithersburg MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2006-12-12   
240-912 8 Gaithersburg MD TYCRVA03AMD  2589 US LEC OF MARYLAND, INC. 236      
240-912 9 Gaithersburg MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2006-12-12   
240-913 A Damascus (Hagerstown LATA) MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-913 0 Damascus (Hagerstown LATA) MD HGTWMD530MD  073H TELNYX LLC 240   2017-08-08   
240-913 2 Damascus (Hagerstown LATA) MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2019-05-30   
240-913 3 Damascus (Hagerstown LATA) MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2021-04-29   
240-913 4 Damascus (Hagerstown LATA) MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240   2018-02-02   
240-913 5 Damascus (Hagerstown LATA) MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2020-01-15   
240-913 6 Damascus (Hagerstown LATA) MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2020-01-15   
240-913 7 Damascus (Hagerstown LATA) MD FRDRMDFRXKX  508J CENTURYLINK COMMUNICATIONS, LLC 240   2016-10-26   
240-913 8 Damascus (Hagerstown LATA) MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2016-10-02   
240-913 9 Damascus (Hagerstown LATA) MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2016-10-02   
240-914 A Highfield MD HGTWMD53FMD  490J DISH WIRELESS, LLC 240      
240-914 8 Highfield MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2023-06-16   
240-914 9 Highfield MD HGTWMD53FMD  490J DISH WIRELESS, LLC 240   2023-03-20   
240-915 A New Market MD CMLDMDCMUMD  073H TELNYX LLC 240      
240-915 0 New Market MD CMLDMDCMUMD  073H TELNYX LLC 240   2017-08-08   
240-915 1 New Market MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2018-06-17   
240-915 2 New Market MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240   2017-03-10   
240-915 3 New Market MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2018-06-17   
240-915 4 New Market MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2018-06-17   
240-915 5 New Market MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240   2021-03-08   
240-915 6 New Market MD HGTWMD53DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 240   2019-10-21   
240-915 7 New Market MD FRDRMDFRXKX  508J CENTURYLINK COMMUNICATIONS, LLC 240   2016-10-28   
240-915 8 New Market MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2016-10-02   
240-916 A Cumberland MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
240-916 0 Cumberland MD HGTWMD539MD  939H COMMIO, LLC 240   2022-08-22   
240-916 1 Cumberland MD   876D ONVOY, LLC - MD 240   2024-03-01   
240-916 2 Cumberland MD   876D ONVOY, LLC - MD 240   2024-03-01   
240-916 3 Cumberland MD   876D ONVOY, LLC - MD 240   2024-04-04   
240-916 7 Cumberland MD HGTWMD53DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 240   2023-09-22   
240-916 8 Cumberland MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2023-01-18   
240-916 9 Cumberland MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2023-01-18   
240-917 A Laurel MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-917 0 Laurel MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-12-28   
240-917 1 Laurel MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-12-28   
240-917 2 Laurel MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-02-29   
240-917 3 Laurel MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-02-29   

<< 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 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 >>

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.