Local Calling Guide
Area code/prefix search
NPA: 571
[Rate centres in NPA 571]
[Dial plan for NPA 571]
<< 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 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 571-742
| 9 |
Dulles Metro |
VA |
|
515J IP HORIZON LLC |
236 |
|
2024-06-24 |
|
| 571-743
| A |
Herndon |
VA |
|
138E ONVOY, LLC - VA |
236 |
|
2025-12-26 |
|
| 571-743
| 0 |
Herndon |
VA |
|
138E ONVOY, LLC - VA |
236 |
|
2025-12-26 |
|
| 571-743
| 1 |
Herndon |
VA |
|
138E ONVOY, LLC - VA |
236 |
|
2026-02-20 |
|
| 571-743
| 8 |
Herndon |
VA |
|
138E ONVOY, LLC - VA |
236 |
|
2026-01-10 |
|
| 571-743
| 9 |
Herndon |
VA |
|
138E ONVOY, LLC - VA |
236 |
|
2026-01-10 |
|
| 571-744
| A |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-744
| 0 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-744
| 1 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-744
| 2 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-744
| 3 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-744
| 4 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-744
| 5 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-744
| 6 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-744
| 7 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-744
| 8 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-744
| 9 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-745
| A |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-745
| 0 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-745
| 1 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-745
| 2 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-745
| 3 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-745
| 4 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-745
| 5 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-745
| 6 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-745
| 7 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-745
| 8 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-745
| 9 |
Washington Zone 17 |
VA |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
236 |
|
2026-01-01 |
|
| 571-746
| A |
Dulles |
VA |
WASHDC12MMD |
516J TON80 COMMUNICATIONS, LLC |
236 |
|
|
|
| 571-746
| 0 |
Dulles |
VA |
|
073H TELNYX LLC |
236 |
|
2023-02-26 |
|
| 571-746
| 1 |
Dulles |
VA |
|
5562 METROPCS, INC. |
236 |
|
2022-04-21 |
|
| 571-746
| 2 |
Dulles |
VA |
|
515J IP HORIZON LLC |
236 |
|
2024-06-29 |
|
| 571-746
| 3 |
Dulles |
VA |
|
515J IP HORIZON LLC |
236 |
|
2024-06-29 |
|
| 571-746
| 4 |
Dulles |
VA |
|
515J IP HORIZON LLC |
236 |
|
2024-12-26 |
|
| 571-746
| 5 |
Dulles |
VA |
|
079F BANDWIDTH.COM CLEC, LLC - VA |
236 |
|
2024-09-19 |
|
| 571-746
| 6 |
Dulles |
VA |
|
7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC |
236 |
|
2022-08-01 |
|
| 571-746
| 7 |
Dulles |
VA |
|
516J TON80 COMMUNICATIONS, LLC |
236 |
|
2022-04-20 |
|
| 571-746
| 8 |
Dulles |
VA |
|
275G PEERLESS NETWORK OF VIRGINIA, LLC - VA |
236 |
|
2022-06-25 |
|
| 571-746
| 9 |
Dulles |
VA |
|
138E ONVOY, LLC - VA |
236 |
|
2023-10-16 |
|
| 571-747
| A |
Manassas |
VA |
|
138E ONVOY, LLC - VA |
236 |
|
2026-02-01 |
|
| 571-747
| 0 |
Manassas |
VA |
|
138E ONVOY, LLC - VA |
236 |
|
2026-02-01 |
|
| 571-747
| 1 |
Manassas |
VA |
|
138E ONVOY, LLC - VA |
236 |
|
2026-02-06 |
|
| 571-748
| A |
Washington Zone 19 |
VA |
|
829J PAETEC ITEL, LLC |
236 |
|
2025-04-02 |
|
| 571-748
| 0 |
Washington Zone 19 |
VA |
|
6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA |
236 |
|
2025-10-20 |
|
| 571-748
| 1 |
Washington Zone 19 |
VA |
|
829J PAETEC ITEL, LLC |
236 |
|
|
|
| 571-748
| 2 |
Washington Zone 19 |
VA |
|
829J PAETEC ITEL, LLC |
236 |
|
|
|
| 571-748
| 3 |
Washington Zone 19 |
VA |
|
8825 LEVEL 3 COMMUNICATIONS, LLC - VA |
236 |
|
2005-04-29 |
|
| 571-748
| 4 |
Washington Zone 19 |
VA |
|
8825 LEVEL 3 COMMUNICATIONS, LLC - VA |
236 |
|
2005-04-29 |
|
| 571-748
| 5 |
Washington Zone 19 |
VA |
|
8825 LEVEL 3 COMMUNICATIONS, LLC - VA |
236 |
|
2006-03-30 |
|
| 571-748
| 6 |
Washington Zone 19 |
VA |
|
8825 LEVEL 3 COMMUNICATIONS, LLC - VA |
236 |
|
2006-06-25 |
|
<< 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 >>
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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