Local Calling Guide
Area code/prefix search
Challenge, CA
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 530-236
| A |
CHICCA017MD |
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
724 |
|
|
|
| 530-236
| 0 |
|
981E BANDWIDTH.COM CLEC, LLC - CA |
724 |
|
|
|
| 530-236
| 1 |
|
073H TELNYX LLC |
724 |
|
2018-07-18 |
|
| 530-236
| 2 |
|
073H TELNYX LLC |
724 |
|
2021-02-27 |
|
| 530-236
| 3 |
|
981E BANDWIDTH.COM CLEC, LLC - CA |
724 |
|
|
|
| 530-236
| 6 |
|
649C ONVOY, LLC - CA |
724 |
|
2019-08-01 |
|
| 530-236
| 7 |
|
649C ONVOY, LLC - CA |
724 |
|
2019-08-01 |
|
| 530-236
| 8 |
|
624H ONVOY SPECTRUM, LLC |
724 |
|
2023-12-16 |
|
| 530-675
| A |
CHLNCA11RS0 |
9740 PACIFIC BELL |
724 |
|
|
|
| 530-675
| 0 |
|
9740 PACIFIC BELL |
724 |
|
|
|
| 530-675
| 1 |
|
9740 PACIFIC BELL |
724 |
|
|
|
| 530-675
| 2 |
|
9740 PACIFIC BELL |
724 |
|
|
|
| 530-675
| 3 |
|
9740 PACIFIC BELL |
724 |
|
|
|
| 530-675
| 4 |
|
981E BANDWIDTH.COM CLEC, LLC - CA |
724 |
|
2009-02-23 |
|
| 530-675
| 5 |
|
649C ONVOY, LLC - CA |
724 |
|
2016-03-05 |
|
| 530-675
| 6 |
|
981E BANDWIDTH.COM CLEC, LLC - CA |
724 |
|
2015-05-25 |
|
| 530-675
| 8 |
|
649C ONVOY, LLC - CA |
724 |
|
2020-03-02 |
|
| 530-675
| 9 |
|
9740 PACIFIC BELL |
724 |
|
|
|
| 530-705
| A |
CHICCA01XUX |
388E CEBRIDGE TELECOM CA, LLC DBA SUDDENLINK COMMS - CA |
724 |
|
|
|
| 530-705
| 0 |
|
981E BANDWIDTH.COM CLEC, LLC - CA |
724 |
|
2025-10-10 |
|
| 530-705
| 4 |
|
516C AT&T CORP. |
724 |
|
2025-01-08 |
|
| 530-705
| 5 |
|
388E CEBRIDGE TELECOM CA, LLC DBA SUDDENLINK COMMS - CA |
724 |
|
2022-08-29 |
|
| 530-772
| A |
CHICCA01XCX |
649C ONVOY, LLC - CA |
724 |
|
|
|
| 530-772
| 0 |
|
649C ONVOY, LLC - CA |
724 |
|
2017-04-28 |
|
| 530-772
| 1 |
|
515J IP HORIZON LLC |
724 |
|
|
|
| 530-772
| 2 |
|
515J IP HORIZON LLC |
724 |
|
|
|
| 530-772
| 3 |
|
671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS |
724 |
|
2017-06-09 |
|
| 530-772
| 4 |
|
145J TERRA NOVA TELECOM INC. |
724 |
|
2022-07-07 |
|
| 530-772
| 5 |
|
8826 LEVEL 3 COMMUNICATIONS, LLC - CA |
724 |
|
2005-07-26 |
|
| 530-772
| 6 |
|
649C ONVOY, LLC - CA |
724 |
|
2021-05-09 |
|
| 530-772
| 7 |
|
516J TON80 COMMUNICATIONS, LLC |
724 |
|
2022-04-11 |
|
| 530-772
| 8 |
|
649C ONVOY, LLC - CA |
724 |
|
2021-07-18 |
|
| 530-772
| 9 |
|
649C ONVOY, LLC - CA |
724 |
|
2021-08-09 |
|
Last updated: Tue, 13 Jan 2026 21:50:02 UTC
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