Local Calling Guide
Area code/prefix search
Winfield, IA
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 319-257
| A |
WNFDIAXORS2 |
1178 WINDSTREAM IOWA COMMUNICATIONS, INC. |
634 |
|
|
|
| 319-257
| 0 |
|
221F ONVOY, LLC - IA |
634 |
|
2021-11-17 |
|
| 319-257
| 1 |
|
1178 WINDSTREAM IOWA COMMUNICATIONS, INC. |
634 |
|
|
|
| 319-257
| 2 |
|
221F ONVOY, LLC - IA |
634 |
|
2020-06-27 |
|
| 319-257
| 3 |
|
1178 WINDSTREAM IOWA COMMUNICATIONS, INC. |
634 |
|
|
|
| 319-257
| 4 |
|
221F ONVOY, LLC - IA |
634 |
|
2021-05-10 |
|
| 319-257
| 5 |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
634 |
|
2016-10-08 |
|
| 319-257
| 6 |
|
1178 WINDSTREAM IOWA COMMUNICATIONS, INC. |
634 |
|
|
|
| 319-257
| 7 |
|
1178 WINDSTREAM IOWA COMMUNICATIONS, INC. |
634 |
|
|
|
| 319-257
| 8 |
|
221F ONVOY, LLC - IA |
634 |
|
2021-03-13 |
|
| 319-257
| 9 |
|
221F ONVOY, LLC - IA |
634 |
|
2021-10-04 |
|
| 319-995
| A |
DVNPIADTXZX |
516J TON80 COMMUNICATIONS, LLC |
634 |
|
|
|
| 319-995
| 1 |
|
624H ONVOY SPECTRUM, LLC |
634 |
|
2024-12-19 |
|
| 319-995
| 5 |
|
516J TON80 COMMUNICATIONS, LLC |
634 |
|
2022-05-16 |
|
| 319-995
| 7 |
|
9877 LEVEL 3 COMMUNICATIONS, LLC - IA |
634 |
|
2023-03-05 |
|
| 319-995
| 8 |
|
221F ONVOY, LLC - IA |
634 |
|
2022-11-25 |
|
| 319-995
| 9 |
|
145J TERRA NOVA TELECOM INC. |
634 |
|
2025-05-31 |
|
Last updated: Tue, 13 Jan 2026 21:50:02 UTC
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