Local Calling Guide
Area code/prefix search
Switch: WASHDCSWMMD
<< 1 2 3 4 5 6 7 8 9 10 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 240-255
| 7 |
Poolesville |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-11-15 |
|
| 240-259
| A |
Hughesville |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
|
|
| 240-259
| 2 |
Hughesville |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-06-25 |
|
| 240-259
| 4 |
Hughesville |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-03-12 |
|
| 240-259
| 5 |
Hughesville |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-11-15 |
|
| 240-259
| 6 |
Hughesville |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-11-15 |
|
| 240-266
| 4 |
Washington Zone 14 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-09-10 |
|
| 240-266
| 7 |
Washington Zone 14 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-269
| 8 |
Washington Zone 16 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-01-28 |
|
| 240-312
| 7 |
Washington Zone 5 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-326
| 8 |
Washington Zone 15 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-331
| 4 |
Washington Zone 3 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-01-15 |
|
| 240-331
| 9 |
Washington Zone 3 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-01-15 |
|
| 240-358
| 4 |
Damascus |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-12-11 |
|
| 240-358
| 6 |
Damascus |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-12-11 |
|
| 240-368
| 3 |
Waldorf |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-371
| 2 |
Washington Zone 12 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-01-15 |
|
| 240-371
| 3 |
Washington Zone 12 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-01-15 |
|
| 240-377
| 5 |
Indian Head |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-395
| 6 |
Washington Zone 2 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-11-15 |
|
| 240-395
| 7 |
Washington Zone 2 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-11-15 |
|
| 240-396
| 0 |
Washington Zone 2 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2024-12-05 |
|
| 240-396
| 4 |
Washington Zone 2 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2024-12-05 |
|
| 240-425
| 1 |
Washington Zone 2 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-433
| 6 |
Washington Zone 12 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-443
| 7 |
Washington Zone 6 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-465
| 1 |
Washington Zone 2 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-11-15 |
|
| 240-491
| 0 |
Washington Zone 3 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2024-12-05 |
|
| 240-491
| 3 |
Washington Zone 3 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2024-12-05 |
|
| 240-491
| 4 |
Washington Zone 3 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2024-12-05 |
|
| 240-504
| 6 |
Washington Zone 3 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2024-12-05 |
|
| 240-504
| 7 |
Washington Zone 3 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2024-12-05 |
|
| 240-525
| 3 |
Washington Zone 15 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-01-16 |
|
| 240-553
| 2 |
Washington Zone 13 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2024-12-05 |
|
| 240-622
| 8 |
La Plata |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-627
| 1 |
Washington Zone 11 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2024-12-05 |
|
| 240-627
| 4 |
Washington Zone 11 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2024-12-05 |
|
| 240-658
| 7 |
Gaithersburg |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-661
| 4 |
Lexington Park-Great Mills |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-667
| 3 |
Washington Zone 4 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2024-12-05 |
|
| 240-684
| 4 |
Washington Zone 13 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-689
| 6 |
Washington Zone 15 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-01-16 |
|
| 240-691
| 0 |
Washington Zone 5 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2024-12-05 |
|
| 240-691
| 5 |
Washington Zone 5 |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2024-12-05 |
|
| 240-697
| 1 |
Mechanicsville |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-12-11 |
|
| 240-697
| 4 |
Mechanicsville |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-697
| 9 |
Mechanicsville |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-12-11 |
|
| 240-703
| 5 |
Ashton |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-709
| 8 |
Laurel |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
2021-05-21 |
|
| 240-717
| A |
Leonardtown |
MD |
624H ONVOY SPECTRUM, LLC |
236 |
|
|
|
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Last updated: Thu, 05 Feb 2026 23:41:55 UTC
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