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 |
| 240-796
| 3 |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-10-09 |
|
| 240-796
| 4 |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-10-09 |
|
| 240-796
| 5 |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-10-09 |
|
| 240-796
| 6 |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-10-09 |
|
| 240-796
| 7 |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-10-09 |
|
| 240-796
| 8 |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-10-09 |
|
| 240-796
| 9 |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-10-09 |
|
| 240-797
| A |
Ashton |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-797
| 0 |
Ashton |
MD |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-11-25 |
|
| 240-797
| 1 |
Ashton |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2021-10-10 |
|
| 240-797
| 2 |
Ashton |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2021-10-10 |
|
| 240-797
| 3 |
Ashton |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-10-09 |
|
| 240-797
| 4 |
Ashton |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-10-09 |
|
| 240-797
| 5 |
Ashton |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-10-09 |
|
| 240-797
| 6 |
Ashton |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-10-09 |
|
| 240-797
| 7 |
Ashton |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-10-09 |
|
| 240-797
| 8 |
Ashton |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-10-09 |
|
| 240-797
| 9 |
Ashton |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-10-09 |
|
| 240-798
| A |
Gaithersburg |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
|
|
| 240-798
| 0 |
Gaithersburg |
MD |
BTVLMD12CMA |
5562 METROPCS, INC. |
236 |
|
2021-11-01 |
|
| 240-798
| 1 |
Gaithersburg |
MD |
BTVLMD18G00 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2021-11-01 |
|
| 240-798
| 2 |
Gaithersburg |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2021-10-31 |
|
| 240-798
| 3 |
Gaithersburg |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2021-10-31 |
|
| 240-798
| 4 |
Gaithersburg |
MD |
WASHDC12MMD |
516J TON80 COMMUNICATIONS, LLC |
236 |
|
2021-11-01 |
|
| 240-798
| 5 |
Gaithersburg |
MD |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-11-14 |
|
| 240-798
| 6 |
Gaithersburg |
MD |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-11-14 |
|
| 240-798
| 7 |
Gaithersburg |
MD |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-11-14 |
|
| 240-798
| 8 |
Gaithersburg |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2022-08-20 |
|
| 240-798
| 9 |
Gaithersburg |
MD |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-11-14 |
|
| 240-799
| A |
Brandywine |
MD |
ARTNVAARXBY |
965H FRACTEL, LLC |
236 |
|
|
|
| 240-799
| 0 |
Brandywine |
MD |
WASHDC127MD |
073H TELNYX LLC |
236 |
|
2021-03-04 |
|
| 240-799
| 1 |
Brandywine |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2021-09-18 |
|
| 240-799
| 2 |
Brandywine |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2021-09-18 |
|
| 240-799
| 3 |
Brandywine |
MD |
BTVLMD12CMA |
5562 METROPCS, INC. |
236 |
|
2021-10-21 |
|
| 240-799
| 4 |
Brandywine |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2025-12-18 |
|
| 240-799
| 5 |
Brandywine |
MD |
BTVLMD12CMA |
5562 METROPCS, INC. |
236 |
|
2022-11-14 |
|
| 240-799
| 7 |
Brandywine |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-12-02 |
|
| 240-799
| 8 |
Brandywine |
MD |
WASHDC12DS6 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
2020-10-30 |
|
| 240-799
| 9 |
Brandywine |
MD |
ARTNVAARXBY |
965H FRACTEL, LLC |
236 |
|
2020-08-25 |
|
| 240-800
| A |
Washington Zone 2 |
MD |
CHCHMDBEPS0 |
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2024-01-16 |
|
| 240-800
| 0 |
Washington Zone 2 |
MD |
CHCHMDBEPS0 |
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2012-08-17 |
|
| 240-800
| 1 |
Washington Zone 2 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2015-07-30 |
|
| 240-800
| 2 |
Washington Zone 2 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2012-08-27 |
|
| 240-800
| 3 |
Washington Zone 2 |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2014-06-10 |
|
| 240-800
| 4 |
Washington Zone 2 |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2012-09-22 |
|
| 240-800
| 5 |
Washington Zone 2 |
MD |
|
829J PAETEC ITEL, LLC |
236 |
|
2014-08-10 |
|
| 240-800
| 6 |
Washington Zone 2 |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2015-07-04 |
|
| 240-800
| 7 |
Washington Zone 2 |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2015-07-04 |
|
| 240-800
| 8 |
Washington Zone 2 |
MD |
CHCHMDBEPS0 |
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2012-08-17 |
|
| 240-800
| 9 |
Washington Zone 2 |
MD |
|
515J IP HORIZON LLC |
236 |
|
2013-09-06 |
|
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Last updated: Wed, 04 Mar 2026 03:00:52 UTC
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