Local Calling Guide
Area code/prefix search
Williamsville, IL
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 217-566
| A |
WSVLILXCRS0 |
1015 FRONTIER NORTH, INC. - IL |
374 |
|
|
|
| 217-566
| 0 |
|
495J STRATUS NETWORKS |
374 |
|
2020-11-13 |
|
| 217-566
| 1 |
|
224C ONVOY, LLC |
374 |
|
2021-02-12 |
|
| 217-566
| 2 |
|
1015 FRONTIER NORTH, INC. - IL |
374 |
|
|
|
| 217-566
| 3 |
|
1015 FRONTIER NORTH, INC. - IL |
374 |
|
|
|
| 217-566
| 4 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
374 |
|
2004-07-17 |
|
| 217-566
| 5 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
374 |
|
2015-11-01 |
|
| 217-566
| 6 |
|
224C ONVOY, LLC |
374 |
|
2018-07-30 |
|
| 217-566
| 7 |
|
224C ONVOY, LLC |
374 |
|
2019-07-27 |
|
| 217-566
| 8 |
|
224C ONVOY, LLC |
374 |
|
2019-07-27 |
|
| 217-566
| 9 |
|
1015 FRONTIER NORTH, INC. - IL |
374 |
|
|
|
| 447-467
| A |
SPFDILES7MD |
224C ONVOY, LLC |
374 |
|
|
|
| 447-467
| 0 |
|
073H TELNYX LLC |
374 |
|
2023-11-16 |
|
| 447-467
| 1 |
|
624H ONVOY SPECTRUM, LLC |
374 |
|
2024-05-25 |
|
| 447-467
| 2 |
|
318J COMCAST IP PHONE, LLC |
374 |
|
2025-08-21 |
|
| 447-467
| 4 |
|
224C ONVOY, LLC |
374 |
|
2021-06-25 |
|
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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