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 |
| 240-245
| 1 |
Washington Zone 14 |
MD |
|
829J PAETEC ITEL, LLC |
236 |
|
2006-01-14 |
|
| 240-245
| 2 |
Washington Zone 14 |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2012-10-07 |
|
| 240-245
| 3 |
Washington Zone 14 |
MD |
|
318J COMCAST IP PHONE, LLC |
236 |
|
2007-05-02 |
|
| 240-245
| 4 |
Washington Zone 14 |
MD |
|
318J COMCAST IP PHONE, LLC |
236 |
|
2006-10-21 |
|
| 240-245
| 5 |
Washington Zone 14 |
MD |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-08-19 |
|
| 240-245
| 6 |
Washington Zone 14 |
MD |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-08-19 |
|
| 240-245
| 7 |
Washington Zone 14 |
MD |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2011-05-20 |
|
| 240-245
| 8 |
Washington Zone 14 |
MD |
|
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-245
| 9 |
Washington Zone 14 |
MD |
|
515J IP HORIZON LLC |
236 |
|
2013-09-06 |
|
| 240-246
| A |
Gaithersburg |
MD |
LNHMMDADGT0 |
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-246
| 0 |
Gaithersburg |
MD |
|
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-246
| 1 |
Gaithersburg |
MD |
|
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-246
| 2 |
Gaithersburg |
MD |
|
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-246
| 3 |
Gaithersburg |
MD |
|
5562 METROPCS, INC. |
236 |
|
2005-07-02 |
|
| 240-246
| 4 |
Gaithersburg |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2005-01-03 |
|
| 240-246
| 5 |
Gaithersburg |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2005-01-03 |
|
| 240-246
| 6 |
Gaithersburg |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2005-01-03 |
|
| 240-246
| 7 |
Gaithersburg |
MD |
|
318J COMCAST IP PHONE, LLC |
236 |
|
2005-07-25 |
|
| 240-246
| 8 |
Gaithersburg |
MD |
|
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-246
| 9 |
Gaithersburg |
MD |
|
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-247
| A |
Washington Zone 3 |
MD |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-247
| 0 |
Washington Zone 3 |
MD |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-247
| 1 |
Washington Zone 3 |
MD |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-247
| 2 |
Washington Zone 3 |
MD |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-247
| 3 |
Washington Zone 3 |
MD |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2022-11-08 |
|
| 240-247
| 4 |
Washington Zone 3 |
MD |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-247
| 5 |
Washington Zone 3 |
MD |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-247
| 6 |
Washington Zone 3 |
MD |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-247
| 7 |
Washington Zone 3 |
MD |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2003-11-04 |
|
| 240-247
| 8 |
Washington Zone 3 |
MD |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-247
| 9 |
Washington Zone 3 |
MD |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
| 240-248
| A |
Ridge |
MD |
WASHDC12DS6 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
|
|
| 240-248
| 0 |
Ridge |
MD |
|
073H TELNYX LLC |
236 |
|
2021-12-23 |
|
| 240-248
| 1 |
Ridge |
MD |
|
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-248
| 2 |
Ridge |
MD |
|
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
2023-08-19 |
|
| 240-248
| 3 |
Ridge |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2021-07-12 |
|
| 240-248
| 4 |
Ridge |
MD |
|
073H TELNYX LLC |
236 |
|
2024-02-04 |
|
| 240-248
| 5 |
Ridge |
MD |
|
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
2021-12-02 |
|
| 240-248
| 6 |
Ridge |
MD |
|
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
2023-02-27 |
|
| 240-248
| 7 |
Ridge |
MD |
|
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-11-15 |
|
| 240-248
| 8 |
Ridge |
MD |
|
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-11-15 |
|
| 240-248
| 9 |
Ridge |
MD |
|
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
|
|
| 240-249
| A |
Mechanicsville |
MD |
WASHDCTTDS0 |
7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC |
236 |
|
|
|
| 240-249
| 0 |
Mechanicsville |
MD |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2006-03-03 |
|
| 240-249
| 1 |
Mechanicsville |
MD |
|
829J PAETEC ITEL, LLC |
236 |
|
2004-02-04 |
|
| 240-249
| 2 |
Mechanicsville |
MD |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2012-06-25 |
|
| 240-249
| 3 |
Mechanicsville |
MD |
|
318J COMCAST IP PHONE, LLC |
236 |
|
2005-07-25 |
|
| 240-249
| 4 |
Mechanicsville |
MD |
|
876D ONVOY, LLC - MD |
236 |
|
2016-03-14 |
|
| 240-249
| 5 |
Mechanicsville |
MD |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-10-17 |
|
| 240-249
| 6 |
Mechanicsville |
MD |
|
228C IDT AMERICA, CORP. - MD |
236 |
|
2007-09-12 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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