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 |
| 240-906
| 7 |
Washington Zone 4 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2018-10-22 |
|
| 240-906
| 8 |
Washington Zone 4 |
MD |
SLSPMD913MD |
939H COMMIO, LLC |
236 |
|
2021-09-16 |
|
| 240-906
| 9 |
Washington Zone 4 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2018-11-24 |
|
| 240-907
| A |
Washington Zone 10 |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
|
|
| 240-907
| 0 |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2016-09-11 |
|
| 240-907
| 1 |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2017-08-06 |
|
| 240-907
| 2 |
Washington Zone 10 |
MD |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2016-09-11 |
|
| 240-907
| 3 |
Washington Zone 10 |
MD |
BTVLMD18G00 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2023-05-24 |
|
| 240-907
| 4 |
Washington Zone 10 |
MD |
BTVLMD18G00 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2023-05-24 |
|
| 240-907
| 5 |
Washington Zone 10 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2020-04-30 |
|
| 240-907
| 6 |
Washington Zone 10 |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2018-04-27 |
|
| 240-907
| 7 |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2017-01-17 |
|
| 240-907
| 8 |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2016-12-09 |
|
| 240-907
| 9 |
Washington Zone 10 |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2016-09-10 |
|
| 240-908
| A |
Walkersville |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
|
|
| 240-908
| 0 |
Walkersville |
MD |
HGTWMD530MD |
073H TELNYX LLC |
240 |
|
2017-08-08 |
|
| 240-908
| 1 |
Walkersville |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2018-06-17 |
|
| 240-908
| 2 |
Walkersville |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2018-06-17 |
|
| 240-908
| 3 |
Walkersville |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2018-06-17 |
|
| 240-908
| 4 |
Walkersville |
MD |
HGTWMDHGDMD |
071F BANDWIDTH.COM CLEC, LLC - MD |
240 |
|
2018-06-24 |
|
| 240-908
| 5 |
Walkersville |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2021-09-20 |
|
| 240-908
| 6 |
Walkersville |
MD |
FRDRMDFRXAX |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
240 |
|
2019-04-22 |
|
| 240-908
| 7 |
Walkersville |
MD |
FRDRMDFRXKX |
508J CENTURYLINK COMMUNICATIONS, LLC |
240 |
|
2016-10-28 |
|
| 240-908
| 8 |
Walkersville |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2016-10-02 |
|
| 240-908
| 9 |
Walkersville |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2016-10-02 |
|
| 240-909
| A |
Laurel |
MD |
BTVLMD12CMA |
5562 METROPCS, INC. |
236 |
|
|
|
| 240-909
| 0 |
Laurel |
MD |
BTVLMD18GT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2023-10-20 |
|
| 240-909
| 1 |
Laurel |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2022-03-05 |
|
| 240-909
| 2 |
Laurel |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2022-03-05 |
|
| 240-909
| 3 |
Laurel |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2022-03-05 |
|
| 240-909
| 4 |
Laurel |
MD |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-03-06 |
|
| 240-909
| 5 |
Laurel |
MD |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-03-06 |
|
| 240-909
| 6 |
Laurel |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2022-06-02 |
|
| 240-909
| 7 |
Laurel |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2022-03-05 |
|
| 240-909
| 8 |
Laurel |
MD |
WASKDCFNAMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2022-03-05 |
|
| 240-909
| 9 |
Laurel |
MD |
BTVLMD12CMA |
5562 METROPCS, INC. |
236 |
|
2022-03-04 |
|
| 240-910
| A |
Frederick |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
|
|
| 240-910
| 0 |
Frederick |
MD |
FRDRMDFRKMD |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
240 |
|
2021-06-05 |
|
| 240-910
| 1 |
Frederick |
MD |
MNRVMDMOXFX |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
240 |
|
2021-07-01 |
|
| 240-910
| 2 |
Frederick |
MD |
HGTWMD539MD |
939H COMMIO, LLC |
240 |
|
2021-07-17 |
|
| 240-910
| 3 |
Frederick |
MD |
HGTWMD539MD |
939H COMMIO, LLC |
240 |
|
2021-07-17 |
|
| 240-910
| 4 |
Frederick |
MD |
HGTWMD539MD |
939H COMMIO, LLC |
240 |
|
2021-07-17 |
|
| 240-910
| 5 |
Frederick |
MD |
FRDRMDFRXSX |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
240 |
|
2022-03-16 |
|
| 240-910
| 6 |
Frederick |
MD |
FRDRMDFRXSX |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
240 |
|
2022-03-16 |
|
| 240-910
| 7 |
Frederick |
MD |
FRDRMDFRKMD |
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 |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2021-04-30 |
|
| 240-912
| A |
Gaithersburg |
MD |
|
829J PAETEC ITEL, LLC |
236 |
|
2025-04-02 |
|
| 240-912
| 0 |
Gaithersburg |
MD |
|
829J PAETEC ITEL, LLC |
236 |
|
|
|
| 240-912
| 1 |
Gaithersburg |
MD |
|
829J PAETEC ITEL, LLC |
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 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 >>
Last updated: Wed, 04 Mar 2026 03:00:52 UTC
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