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 |
| 240-752
| 6 |
Washington Zone 2 |
MD |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2006-03-24 |
|
| 240-752
| 7 |
Washington Zone 2 |
MD |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2006-03-24 |
|
| 240-752
| 8 |
Washington Zone 2 |
MD |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2008-02-11 |
|
| 240-752
| 9 |
Washington Zone 2 |
MD |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2006-09-19 |
|
| 240-753
| A |
Washington Zone 10 |
MD |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-753
| 0 |
Washington Zone 10 |
MD |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2008-12-13 |
|
| 240-753
| 1 |
Washington Zone 10 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2022-04-26 |
|
| 240-753
| 2 |
Washington Zone 10 |
MD |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2006-07-03 |
|
| 240-753
| 3 |
Washington Zone 10 |
MD |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2006-07-03 |
|
| 240-753
| 4 |
Washington Zone 10 |
MD |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2006-07-03 |
|
| 240-753
| 5 |
Washington Zone 10 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2006-08-10 |
|
| 240-753
| 6 |
Washington Zone 10 |
MD |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2013-03-09 |
|
| 240-753
| 7 |
Washington Zone 10 |
MD |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2013-05-11 |
|
| 240-753
| 8 |
Washington Zone 10 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2006-08-10 |
|
| 240-753
| 9 |
Washington Zone 10 |
MD |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
236 |
|
2013-06-01 |
|
| 240-754
| A |
Waldorf |
MD |
MCLNVA23DS4 |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-754
| 0 |
Waldorf |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-23 |
|
| 240-754
| 1 |
Waldorf |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-23 |
|
| 240-754
| 2 |
Waldorf |
MD |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2012-01-02 |
|
| 240-754
| 3 |
Waldorf |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2021-01-03 |
|
| 240-754
| 4 |
Waldorf |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2015-06-27 |
|
| 240-754
| 5 |
Waldorf |
MD |
|
829J PAETEC ITEL, LLC |
236 |
|
2012-04-03 |
|
| 240-754
| 6 |
Waldorf |
MD |
|
829J PAETEC ITEL, LLC |
236 |
|
2012-04-03 |
|
| 240-754
| 7 |
Waldorf |
MD |
|
318J COMCAST IP PHONE, LLC |
236 |
|
2013-09-05 |
|
| 240-754
| 8 |
Waldorf |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-23 |
|
| 240-754
| 9 |
Waldorf |
MD |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-23 |
|
| 240-755
| A |
Laurel (Baltimore LATA) |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
|
|
| 240-755
| 0 |
Laurel (Baltimore LATA) |
MD |
|
318J COMCAST IP PHONE, LLC |
238 |
|
2006-02-26 |
|
| 240-755
| 1 |
Laurel (Baltimore LATA) |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2007-08-03 |
|
| 240-755
| 2 |
Laurel (Baltimore LATA) |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2007-11-04 |
|
| 240-755
| 3 |
Laurel (Baltimore LATA) |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2008-01-12 |
|
| 240-755
| 4 |
Laurel (Baltimore LATA) |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2008-04-13 |
|
| 240-755
| 5 |
Laurel (Baltimore LATA) |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2008-04-21 |
|
| 240-755
| 6 |
Laurel (Baltimore LATA) |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2008-06-16 |
|
| 240-755
| 7 |
Laurel (Baltimore LATA) |
MD |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2011-10-31 |
|
| 240-755
| 8 |
Laurel (Baltimore LATA) |
MD |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2011-05-01 |
|
| 240-755
| 9 |
Laurel (Baltimore LATA) |
MD |
|
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2011-10-31 |
|
| 240-756
| A |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-756
| 0 |
Washington Zone 10 |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-07-08 |
|
| 240-756
| 1 |
Washington Zone 10 |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-07-08 |
|
| 240-756
| 2 |
Washington Zone 10 |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-07-08 |
|
| 240-756
| 3 |
Washington Zone 10 |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-07-08 |
|
| 240-756
| 4 |
Washington Zone 10 |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-04-10 |
|
| 240-756
| 5 |
Washington Zone 10 |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-04-10 |
|
| 240-756
| 6 |
Washington Zone 10 |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-04-10 |
|
| 240-756
| 7 |
Washington Zone 10 |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-04-10 |
|
| 240-756
| 8 |
Washington Zone 10 |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-04-10 |
|
| 240-756
| 9 |
Washington Zone 10 |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-04-10 |
|
| 240-757
| A |
Washington Zone 13 |
MD |
WASHDC12DS6 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
|
|
| 240-757
| 0 |
Washington Zone 13 |
MD |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2022-10-14 |
|
<< 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: Thu, 29 Jan 2026 14:35:03 UTC
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