Local Calling Guide
Area code/prefix search
Washington Zone 16, MD
1 2 3 4 5 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 227-222
| A |
WASHDCSWFMD |
530H WIDE VOICE, LLC - MD |
236 |
|
|
|
| 227-222
| 0 |
|
876D ONVOY, LLC - MD |
236 |
|
2024-06-08 |
|
| 227-222
| 1 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2024-11-11 |
|
| 227-222
| 2 |
|
530H WIDE VOICE, LLC - MD |
236 |
|
2023-12-18 |
|
| 227-222
| 3 |
|
624H ONVOY SPECTRUM, LLC |
236 |
|
2024-01-14 |
|
| 227-222
| 4 |
|
624H ONVOY SPECTRUM, LLC |
236 |
|
2024-01-14 |
|
| 227-222
| 5 |
|
876D ONVOY, LLC - MD |
236 |
|
2025-05-10 |
|
| 227-222
| 6 |
|
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
236 |
|
2025-07-27 |
|
| 227-222
| 7 |
|
321J HD CARRIER LLC |
236 |
|
2023-12-18 |
|
| 227-222
| 8 |
|
876D ONVOY, LLC - MD |
236 |
|
2025-03-09 |
|
| 227-222
| 9 |
|
876D ONVOY, LLC - MD |
236 |
|
2024-11-10 |
|
| 227-333
| A |
|
876D ONVOY, LLC - MD |
236 |
|
2025-10-16 |
|
| 227-333
| 0 |
|
876D ONVOY, LLC - MD |
236 |
|
2025-10-17 |
|
| 227-333
| 3 |
|
876D ONVOY, LLC - MD |
236 |
|
2025-10-16 |
|
| 227-333
| 4 |
|
876D ONVOY, LLC - MD |
236 |
|
2025-10-16 |
|
| 227-333
| 5 |
|
876D ONVOY, LLC - MD |
236 |
|
2025-10-16 |
|
| 227-333
| 6 |
|
876D ONVOY, LLC - MD |
236 |
|
2025-10-16 |
|
| 240-244
| A |
LNHMMDADGT0 |
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-244
| 0 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-09-03 |
|
| 240-244
| 1 |
|
318J COMCAST IP PHONE, LLC |
236 |
|
2006-03-03 |
|
| 240-244
| 2 |
|
318J COMCAST IP PHONE, LLC |
236 |
|
2016-06-07 |
|
| 240-244
| 3 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2007-09-13 |
|
| 240-244
| 4 |
|
876D ONVOY, LLC - MD |
236 |
|
2008-10-05 |
|
| 240-244
| 5 |
|
318J COMCAST IP PHONE, LLC |
236 |
|
2007-01-19 |
|
| 240-244
| 6 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-02-22 |
|
| 240-244
| 7 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2010-10-28 |
|
| 240-244
| 8 |
|
8832 STARPOWER COMMUNICATIONS, LLC - MD |
236 |
|
|
|
| 240-244
| 9 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2008-12-13 |
|
| 240-269
| A |
SLSPMD91DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
|
|
| 240-269
| 0 |
|
145J TERRA NOVA TELECOM INC. |
236 |
|
2023-08-06 |
|
| 240-269
| 1 |
|
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
2021-12-30 |
|
| 240-269
| 2 |
|
876D ONVOY, LLC - MD |
236 |
|
2021-09-24 |
|
| 240-269
| 3 |
|
876D ONVOY, LLC - MD |
236 |
|
2021-09-24 |
|
| 240-269
| 4 |
|
876D ONVOY, LLC - MD |
236 |
|
2021-09-24 |
|
| 240-269
| 5 |
|
876D ONVOY, LLC - MD |
236 |
|
2021-12-23 |
|
| 240-269
| 6 |
|
876D ONVOY, LLC - MD |
236 |
|
2021-12-23 |
|
| 240-269
| 7 |
|
876D ONVOY, LLC - MD |
236 |
|
2021-12-23 |
|
| 240-269
| 8 |
|
624H ONVOY SPECTRUM, LLC |
236 |
|
2022-01-28 |
|
| 240-269
| 9 |
|
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
|
|
| 240-303
| A |
|
829J PAETEC ITEL, LLC |
236 |
|
2025-04-02 |
|
| 240-303
| 0 |
|
829J PAETEC ITEL, LLC |
236 |
|
|
|
| 240-303
| 1 |
|
829J PAETEC ITEL, LLC |
236 |
|
|
|
| 240-303
| 2 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
236 |
|
2011-02-26 |
|
| 240-303
| 3 |
|
876D ONVOY, LLC - MD |
236 |
|
2012-10-07 |
|
| 240-303
| 4 |
|
829J PAETEC ITEL, LLC |
236 |
|
|
|
| 240-303
| 5 |
|
876D ONVOY, LLC - MD |
236 |
|
2020-06-11 |
|
| 240-303
| 6 |
|
876D ONVOY, LLC - MD |
236 |
|
2020-06-11 |
|
| 240-303
| 7 |
|
876D ONVOY, LLC - MD |
236 |
|
2020-06-11 |
|
| 240-303
| 8 |
|
876D ONVOY, LLC - MD |
236 |
|
2020-06-11 |
|
| 240-303
| 9 |
|
829J PAETEC ITEL, LLC |
236 |
|
|
|
1 2 3 4 5 >>
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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