Local Calling Guide
Area code/prefix search
NPA: 557
[Rate centres in NPA 557]
[Dial plan for NPA 557]
NXX: 207
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 557-207
| A |
Oakville |
MO |
STLSMOGZVMD |
598J FIVE9, INC. |
520 |
|
|
|
| 557-207
| 0 |
Oakville |
MO |
STLSMOGZVMD |
598J FIVE9, INC. |
520 |
|
2023-07-30 |
|
| 557-207
| 1 |
Oakville |
MO |
STLSMOWQDS2 |
093F ONVOY, LLC - MO |
520 |
|
2024-05-25 |
|
| 557-207
| 2 |
Oakville |
MO |
STLSMOWQDS2 |
093F ONVOY, LLC - MO |
520 |
|
2025-04-07 |
|
| 557-207
| 3 |
Oakville |
MO |
STLSMOWQDS2 |
093F ONVOY, LLC - MO |
520 |
|
2025-10-26 |
|
| 557-207
| 4 |
Oakville |
MO |
STLSMOWQDS2 |
093F ONVOY, LLC - MO |
520 |
|
2026-02-20 |
|
| 557-207
| 5 |
Oakville |
MO |
STLSMOWQDS2 |
093F ONVOY, LLC - MO |
520 |
|
2026-04-04 |
|
| 557-207
| 6 |
Oakville |
MO |
STLSMO09XMD |
7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO |
520 |
|
2025-03-10 |
|
| 557-207
| 7 |
Oakville |
MO |
STLSMOWQDS2 |
093F ONVOY, LLC - MO |
520 |
|
2026-05-30 |
|
| 557-207
| 8 |
Oakville |
MO |
STLSMOWQDS2 |
093F ONVOY, LLC - MO |
520 |
|
2024-07-12 |
|
| 557-207
| 9 |
Oakville |
MO |
STLSMO05RMD |
993E BANDWIDTH.COM CLEC, LLC - MO |
520 |
|
2024-11-11 |
|
Last updated: Thu, 16 Jul 2026 02:21:55 UTC
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