Local Calling Guide
Area code/prefix search
NPA: 520
[Rate centres in NPA 520]
[Dial plan for NPA 520]
<< 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 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 520-737
| 4 |
Sierra Vista |
AZ |
|
321J HD CARRIER LLC |
668 |
|
2025-10-31 |
|
| 520-737
| 5 |
Sierra Vista |
AZ |
|
907K ALLO COMMUNICATIONS LLC |
668 |
|
2024-08-16 |
|
| 520-737
| 6 |
Sierra Vista |
AZ |
|
321J HD CARRIER LLC |
668 |
|
2025-10-31 |
|
| 520-737
| 7 |
Sierra Vista |
AZ |
|
321J HD CARRIER LLC |
668 |
|
2025-10-31 |
|
| 520-737
| 8 |
Sierra Vista |
AZ |
|
321J HD CARRIER LLC |
668 |
|
2025-10-31 |
|
| 520-737
| 9 |
Sierra Vista |
AZ |
|
321J HD CARRIER LLC |
668 |
|
2025-10-31 |
|
| 520-738
| A |
Tucson |
AZ |
TCSNAZXGAMD |
6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
668 |
|
2024-12-06 |
|
| 520-738
| 0 |
Tucson |
AZ |
TCSNAZXGAMD |
6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
668 |
|
2024-12-06 |
|
| 520-738
| 1 |
Tucson |
AZ |
TCSNAZXGAMD |
6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
668 |
|
2024-12-06 |
|
| 520-738
| 2 |
Tucson |
AZ |
TCSNAZXGAMD |
6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
668 |
|
2024-12-06 |
|
| 520-738
| 3 |
Tucson |
AZ |
TCSNAZXGAMD |
6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
668 |
|
2024-12-06 |
|
| 520-738
| 4 |
Tucson |
AZ |
TCSNAZXGAMD |
6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
668 |
|
2024-12-06 |
|
| 520-738
| 5 |
Tucson |
AZ |
TCSNAZXGAMD |
6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
668 |
|
2024-12-06 |
|
| 520-738
| 6 |
Tucson |
AZ |
TCSNAZXGAMD |
6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
668 |
|
2024-12-06 |
|
| 520-738
| 7 |
Tucson |
AZ |
TCSNAZXGAMD |
6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
668 |
|
2024-12-06 |
|
| 520-738
| 8 |
Tucson |
AZ |
TCSNAZXGAMD |
6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
668 |
|
2024-12-06 |
|
| 520-738
| 9 |
Tucson |
AZ |
TCSNAZXGAMD |
6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
668 |
|
2024-12-06 |
|
| 520-739
| A |
Tucson |
AZ |
TCSNAZMAX3Y |
624H ONVOY SPECTRUM, LLC |
668 |
|
2025-01-06 |
|
| 520-739
| 0 |
Tucson |
AZ |
TCSNAZMAX3Y |
624H ONVOY SPECTRUM, LLC |
668 |
|
2025-01-06 |
|
| 520-739
| 1 |
Tucson |
AZ |
TCSNAZMAX3Y |
624H ONVOY SPECTRUM, LLC |
668 |
|
2025-01-06 |
|
| 520-739
| 2 |
Tucson |
AZ |
TCSNAZMAX3Y |
624H ONVOY SPECTRUM, LLC |
668 |
|
2025-01-06 |
|
| 520-739
| 3 |
Tucson |
AZ |
TCSMAZCH1MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
668 |
|
2025-01-19 |
|
| 520-739
| 4 |
Tucson |
AZ |
TCSMAZCH1MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
668 |
|
2025-01-19 |
|
| 520-739
| 5 |
Tucson |
AZ |
TCSMAZCH1MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
668 |
|
2025-01-19 |
|
| 520-739
| 6 |
Tucson |
AZ |
TCSMAZCH1MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
668 |
|
2025-01-19 |
|
| 520-739
| 7 |
Tucson |
AZ |
TCSMAZCH1MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
668 |
|
2025-01-19 |
|
| 520-739
| 8 |
Tucson |
AZ |
TCSMAZCH1MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
668 |
|
2025-01-19 |
|
| 520-739
| 9 |
Tucson |
AZ |
|
6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
668 |
|
2025-01-27 |
|
| 520-740
| A |
Tucson |
AZ |
TCSNAZMADS1 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-741
| A |
Tucson |
AZ |
TCSNAZSODS0 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-742
| A |
Tucson |
AZ |
TCSNAZNODS0 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-743
| A |
Tucson |
AZ |
TCSNAZWERS1 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-743
| 0 |
Tucson |
AZ |
TCSNAZWERS1 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-743
| 1 |
Tucson |
AZ |
TCSNAZWERS1 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-743
| 2 |
Tucson |
AZ |
TCSNAZWERS1 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-743
| 3 |
Tucson |
AZ |
TCSNAZWERS1 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-743
| 4 |
Tucson |
AZ |
TCSNAZWERS1 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-743
| 5 |
Tucson |
AZ |
TCSNAZWERS1 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-743
| 6 |
Tucson |
AZ |
TCSMAZCH1MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
668 |
|
2008-08-27 |
|
| 520-743
| 7 |
Tucson |
AZ |
TCSNAZWERS1 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-743
| 8 |
Tucson |
AZ |
TCSNAZWERS1 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-743
| 9 |
Tucson |
AZ |
TCSNAZWERS1 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-744
| A |
Tucson |
AZ |
TCSNAZCODS0 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-745
| A |
Tucson |
AZ |
TCSNAZCRDS0 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-746
| A |
Tucson |
AZ |
TCSNAZSODS0 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-747
| A |
Tucson |
AZ |
TCSNAZCRDS0 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-748
| A |
Tucson |
AZ |
TCSNAZCRDS0 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-749
| A |
Tucson |
AZ |
TCSNAZTVDS0 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-750
| A |
Tucson |
AZ |
TCSNAZCRDS0 |
9636 QWEST CORPORATION |
668 |
|
|
|
| 520-750
| 0 |
Tucson |
AZ |
TCSNAZCRDS0 |
9636 QWEST CORPORATION |
668 |
|
|
|
<< 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 >>
Last updated: Sat, 04 Jul 2026 13:07:56 UTC
Sponsored by: LES.NET
Like this site? We accept donations via PayPal.