Local Calling Guide
Area code/prefix search
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 240-533
| 0 |
Washington Zone 3 |
MD |
WASHDCDTDS1 |
7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC |
236 |
|
|
|
| 240-533
| 1 |
Washington Zone 3 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2005-07-18 |
|
| 240-533
| 2 |
Washington Zone 3 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2004-05-24 |
|
| 240-533
| 3 |
Washington Zone 3 |
MD |
LARLMDCCDS0 |
4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD |
236 |
|
2004-04-06 |
|
| 240-533
| 4 |
Washington Zone 3 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2024-12-14 |
|
| 240-533
| 5 |
Washington Zone 3 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2004-07-12 |
|
| 240-533
| 6 |
Washington Zone 3 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2005-07-08 |
|
| 240-533
| 7 |
Washington Zone 3 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2004-10-03 |
|
| 240-533
| 8 |
Washington Zone 3 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2004-11-07 |
|
| 240-533
| 9 |
Washington Zone 3 |
MD |
WASHDCDTDS1 |
7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC |
236 |
|
|
|
| 240-534
| A |
Washington Zone 2 |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
|
|
| 240-534
| 0 |
Washington Zone 2 |
MD |
|
515J IP HORIZON LLC |
236 |
|
2016-06-11 |
|
| 240-534
| 1 |
Washington Zone 2 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2016-07-09 |
|
| 240-534
| 2 |
Washington Zone 2 |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2016-06-11 |
|
| 240-534
| 3 |
Washington Zone 2 |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2016-08-21 |
|
| 240-534
| 4 |
Washington Zone 2 |
MD |
CHCHMDBEX4X |
551G NUSO, LLC |
236 |
|
2016-08-31 |
|
| 240-534
| 5 |
Washington Zone 2 |
MD |
CHCHMDBEX4X |
551G NUSO, LLC |
236 |
|
2016-08-31 |
|
| 240-534
| 6 |
Washington Zone 2 |
MD |
CHCHMDBEX4X |
551G NUSO, LLC |
236 |
|
2016-08-31 |
|
| 240-534
| 7 |
Washington Zone 2 |
MD |
CHCHMDBEX4X |
551G NUSO, LLC |
236 |
|
2016-08-31 |
|
| 240-534
| 8 |
Washington Zone 2 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2016-07-14 |
|
| 240-534
| 9 |
Washington Zone 2 |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2016-06-10 |
|
| 240-535
| A |
Washington Zone 3 |
MD |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
|
|
| 240-536
| A |
Ashton |
MD |
WASHDC12DS6 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
|
|
| 240-536
| 0 |
Ashton |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2024-06-27 |
|
| 240-536
| 1 |
Ashton |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2024-06-27 |
|
| 240-536
| 2 |
Ashton |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2024-06-27 |
|
| 240-536
| 3 |
Ashton |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2024-06-27 |
|
| 240-536
| 4 |
Ashton |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2024-06-27 |
|
| 240-536
| 5 |
Ashton |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2024-06-27 |
|
| 240-536
| 6 |
Ashton |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2025-06-27 |
|
| 240-536
| 7 |
Ashton |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2025-09-28 |
|
| 240-536
| 8 |
Ashton |
MD |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2025-05-16 |
|
| 240-536
| 9 |
Ashton |
MD |
WASHDC12DS6 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
|
|
| 240-537
| A |
Hagerstown |
MD |
CMLDMDCMTMD |
361H ATLANTECH ONLINE, INC. - MD |
240 |
|
|
|
| 240-537
| 0 |
Hagerstown |
MD |
CMLDMDCMTMD |
361H ATLANTECH ONLINE, INC. - MD |
240 |
|
2017-11-17 |
|
| 240-537
| 1 |
Hagerstown |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2018-10-22 |
|
| 240-537
| 2 |
Hagerstown |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2018-10-22 |
|
| 240-537
| 3 |
Hagerstown |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2018-10-22 |
|
| 240-537
| 4 |
Hagerstown |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2018-10-22 |
|
| 240-537
| 5 |
Hagerstown |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2018-10-22 |
|
| 240-537
| 6 |
Hagerstown |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2018-10-22 |
|
| 240-537
| 7 |
Hagerstown |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2018-10-22 |
|
| 240-537
| 8 |
Hagerstown |
MD |
FRDRMDFRXSX |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
240 |
|
2018-03-26 |
|
| 240-537
| 9 |
Hagerstown |
MD |
MNRVMDMOXFX |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
240 |
|
2019-07-26 |
|
| 240-538
| A |
Leonardtown |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-538
| 0 |
Leonardtown |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-538
| 1 |
Leonardtown |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2003-08-03 |
|
| 240-538
| 2 |
Leonardtown |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2003-08-03 |
|
| 240-538
| 3 |
Leonardtown |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2003-11-03 |
|
| 240-538
| 4 |
Leonardtown |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2004-07-02 |
|
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Last updated: Sat, 02 May 2026 12:20:53 UTC
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