Local Calling Guide
Area code/prefix search
NPA: 503
[Rate centres in NPA 503]
[Dial plan for NPA 503]
NXX: 917
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 503-917
| A |
Dallas |
OR |
PTLJORIY0MD |
6529 T-MOBILE USA, INC. |
672 |
|
|
|
| 503-917
| 0 |
Dallas |
OR |
PTLDOR69UMD |
076F BANDWIDTH.COM CLEC, LLC - OR |
672 |
|
2014-06-13 |
|
| 503-917
| 1 |
Dallas |
OR |
PTLJORIY0MD |
6529 T-MOBILE USA, INC. |
672 |
|
|
|
| 503-917
| 2 |
Dallas |
OR |
PTLEORTEPS0 |
7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
672 |
|
2014-04-30 |
|
| 503-917
| 3 |
Dallas |
OR |
PTLDORWADS2 |
750E ONVOY, LLC - OR |
672 |
|
2015-04-07 |
|
| 503-917
| 4 |
Dallas |
OR |
PTLDOR69UMD |
076F BANDWIDTH.COM CLEC, LLC - OR |
672 |
|
2015-05-23 |
|
| 503-917
| 5 |
Dallas |
OR |
PTLDOR69UMD |
076F BANDWIDTH.COM CLEC, LLC - OR |
672 |
|
2015-05-23 |
|
| 503-917
| 6 |
Dallas |
OR |
THDLORXADMD |
7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR |
672 |
|
2013-01-02 |
|
| 503-917
| 7 |
Dallas |
OR |
PTLDORWAXKY |
936F ASTOUND BROADBAND, LLC - OR |
672 |
|
2015-03-15 |
|
| 503-917
| 8 |
Dallas |
OR |
BENDOR248MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
672 |
|
2015-06-15 |
|
| 503-917
| 9 |
Dallas |
OR |
PTLJORIY0MD |
6529 T-MOBILE USA, INC. |
672 |
|
|
|
Last updated: Sat, 05 Apr 2025 03:03:23 UTC
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