Local Calling Guide
Area code/prefix search
Switch: ARTNVAARXGY
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 202-967
| A |
Washington Zone 1 |
DC |
478J NUSO, LLC |
236 |
|
|
|
| 202-967
| 1 |
Washington Zone 1 |
DC |
478J NUSO, LLC |
236 |
|
2020-11-08 |
|
| 227-233
| 1 |
Washington Zone 2 |
MD |
478J NUSO, LLC |
236 |
|
2024-06-17 |
|
| 227-233
| 2 |
Washington Zone 2 |
MD |
478J NUSO, LLC |
236 |
|
2024-06-17 |
|
| 227-233
| 3 |
Washington Zone 2 |
MD |
478J NUSO, LLC |
236 |
|
2024-06-17 |
|
| 240-673
| 9 |
Washington Zone 2 |
MD |
478J NUSO, LLC |
236 |
|
2020-10-04 |
|
| 240-726
| A |
Washington Zone 4 |
MD |
478J NUSO, LLC |
236 |
|
|
|
| 240-726
| 1 |
Washington Zone 4 |
MD |
478J NUSO, LLC |
236 |
|
2020-10-27 |
|
| 410-824
| 0 |
Waterloo (Washington DC LATA) |
MD |
478J NUSO, LLC |
236 |
|
2021-01-16 |
|
| 571-473
| A |
Washington Zone 8 |
VA |
478J NUSO, LLC |
236 |
|
|
|
| 571-473
| 1 |
Washington Zone 8 |
VA |
478J NUSO, LLC |
236 |
|
2020-11-02 |
|
| 771-244
| 7 |
Washington Zone 1 |
DC |
478J NUSO, LLC |
236 |
|
2024-08-10 |
|
| 771-244
| 8 |
Washington Zone 1 |
DC |
478J NUSO, LLC |
236 |
|
2024-08-10 |
|
| 771-244
| 9 |
Washington Zone 1 |
DC |
478J NUSO, LLC |
236 |
|
2024-08-10 |
|
Last updated: Wed, 18 Jun 2025 02:30:00 UTC
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