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 |
| 240-869
| 5 |
Washington Zone 10 |
MD |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-01-15 |
|
| 240-869
| 6 |
Washington Zone 10 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2021-12-23 |
|
| 240-869
| 7 |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-12-09 |
|
| 240-869
| 8 |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-12-09 |
|
| 240-869
| 9 |
Washington Zone 10 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-12-09 |
|
| 240-870
| A |
Middletown |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
|
|
| 240-870
| 0 |
Middletown |
MD |
FRDRMDFRKMD |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
240 |
|
2017-02-04 |
|
| 240-870
| 1 |
Middletown |
MD |
HGTWMD530MD |
073H TELNYX LLC |
240 |
|
2017-08-08 |
|
| 240-870
| 2 |
Middletown |
MD |
FRDRMDFRXTX |
318J COMCAST IP PHONE, LLC |
240 |
|
2017-05-23 |
|
| 240-870
| 3 |
Middletown |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2024-04-05 |
|
| 240-870
| 4 |
Middletown |
MD |
|
145J TERRA NOVA TELECOM INC. |
240 |
|
2023-11-14 |
|
| 240-870
| 6 |
Middletown |
MD |
FRDRMDFRKMD |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
240 |
|
2018-09-20 |
|
| 240-870
| 7 |
Middletown |
MD |
FRDRMDFRXKX |
508J CENTURYLINK COMMUNICATIONS, LLC |
240 |
|
2016-11-05 |
|
| 240-870
| 8 |
Middletown |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2016-11-03 |
|
| 240-870
| 9 |
Middletown |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2016-11-03 |
|
| 240-871
| A |
Lexington Park-Great Mills |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-871
| 0 |
Lexington Park-Great Mills |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2022-09-22 |
|
| 240-871
| 1 |
Lexington Park-Great Mills |
MD |
WASHDCDP8MD |
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2022-09-22 |
|
| 240-871
| 2 |
Lexington Park-Great Mills |
MD |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-12-11 |
|
| 240-871
| 3 |
Lexington Park-Great Mills |
MD |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-12-11 |
|
| 240-871
| 4 |
Lexington Park-Great Mills |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2023-06-17 |
|
| 240-871
| 8 |
Lexington Park-Great Mills |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2022-08-26 |
|
| 240-871
| 9 |
Lexington Park-Great Mills |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-12-09 |
|
| 240-872
| A |
Washington Zone 6 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
|
|
| 240-872
| 0 |
Washington Zone 6 |
MD |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2023-01-02 |
|
| 240-872
| 1 |
Washington Zone 6 |
MD |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-12-10 |
|
| 240-872
| 2 |
Washington Zone 6 |
MD |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-12-10 |
|
| 240-872
| 3 |
Washington Zone 6 |
MD |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-12-10 |
|
| 240-872
| 4 |
Washington Zone 6 |
MD |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-12-10 |
|
| 240-872
| 5 |
Washington Zone 6 |
MD |
WASHDCSWMMD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-12-10 |
|
| 240-872
| 6 |
Washington Zone 6 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-12-14 |
|
| 240-872
| 7 |
Washington Zone 6 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-12-14 |
|
| 240-872
| 8 |
Washington Zone 6 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-12-14 |
|
| 240-872
| 9 |
Washington Zone 6 |
MD |
BTVLMD12CMA |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2021-12-09 |
|
| 240-873
| A |
Buckeystown |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
|
|
| 240-873
| 0 |
Buckeystown |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2021-07-11 |
|
| 240-873
| 1 |
Buckeystown |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2020-10-17 |
|
| 240-873
| 2 |
Buckeystown |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2020-10-17 |
|
| 240-873
| 3 |
Buckeystown |
MD |
BCTWMDBTRS1 |
9212 VERIZON MARYLAND, INC. |
240 |
|
2020-05-18 |
|
| 240-873
| 4 |
Buckeystown |
MD |
BCTWMDBTRS1 |
9212 VERIZON MARYLAND, INC. |
240 |
|
2020-05-18 |
|
| 240-873
| 5 |
Buckeystown |
MD |
FRDRMDFRXPX |
624H ONVOY SPECTRUM, LLC |
240 |
|
2021-05-24 |
|
| 240-873
| 6 |
Buckeystown |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2022-10-16 |
|
| 240-873
| 7 |
Buckeystown |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2019-12-11 |
|
| 240-873
| 8 |
Buckeystown |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2019-12-11 |
|
| 240-873
| 9 |
Buckeystown |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2021-07-11 |
|
| 240-874
| A |
Thurmont |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
|
|
| 240-874
| 0 |
Thurmont |
MD |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
2024-05-03 |
|
| 240-874
| 1 |
Thurmont |
MD |
FRDRMDFRXPX |
624H ONVOY SPECTRUM, LLC |
240 |
|
2022-01-17 |
|
| 240-874
| 2 |
Thurmont |
MD |
FRDRMDFRXMD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
240 |
|
2022-07-03 |
|
| 240-874
| 3 |
Thurmont |
MD |
FRDRMDFRXPX |
624H ONVOY SPECTRUM, LLC |
240 |
|
2021-05-24 |
|
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Last updated: Wed, 04 Mar 2026 03:00:52 UTC
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