Local Calling Guide
Area code/prefix search
Ontario, CA
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 909-376
| 3 |
|
6529 T-MOBILE USA, INC. |
730 |
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| 909-376
| 4 |
|
6529 T-MOBILE USA, INC. |
730 |
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|
| 909-376
| 5 |
|
899D METROPCS NETWORKS, LLC |
730 |
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|
| 909-376
| 6 |
|
6529 T-MOBILE USA, INC. |
730 |
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| 909-376
| 7 |
|
6529 T-MOBILE USA, INC. |
730 |
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| 909-376
| 8 |
|
6529 T-MOBILE USA, INC. |
730 |
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| 909-376
| 9 |
|
6529 T-MOBILE USA, INC. |
730 |
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| 909-390
| A |
ONTRCAXMDS0 |
2319 FRONTIER CALIFORNIA INC. |
730 |
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| 909-391
| A |
ONTRCAXF98K |
2319 FRONTIER CALIFORNIA INC. |
730 |
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| 909-395
| A |
ONTRCAXF98K |
2319 FRONTIER CALIFORNIA INC. |
730 |
|
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|
| 909-395
| 0 |
|
2319 FRONTIER CALIFORNIA INC. |
730 |
|
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|
| 909-395
| 1 |
|
2319 FRONTIER CALIFORNIA INC. |
730 |
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| 909-395
| 2 |
|
2319 FRONTIER CALIFORNIA INC. |
730 |
|
|
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| 909-395
| 3 |
|
2319 FRONTIER CALIFORNIA INC. |
730 |
|
|
|
| 909-395
| 4 |
|
2319 FRONTIER CALIFORNIA INC. |
730 |
|
|
|
| 909-395
| 5 |
|
2319 FRONTIER CALIFORNIA INC. |
730 |
|
|
|
| 909-395
| 6 |
|
6529 T-MOBILE USA, INC. |
730 |
|
2002-12-15 |
|
| 909-395
| 7 |
|
6529 T-MOBILE USA, INC. |
730 |
|
2002-12-15 |
|
| 909-395
| 8 |
|
2319 FRONTIER CALIFORNIA INC. |
730 |
|
|
|
| 909-395
| 9 |
|
2319 FRONTIER CALIFORNIA INC. |
730 |
|
|
|
| 909-400
| A |
LSANCARC80Z |
9262 UTILITY TELECOM GROUP, LLC - CA |
730 |
|
|
|
| 909-405
| A |
LSANCA039MD |
6630 USA MOBILITY WIRELESS, INC. |
730 |
|
|
|
| 909-408
| A |
RVSDCAYAGT1 |
899D METROPCS NETWORKS, LLC |
730 |
|
|
|
| 909-408
| 0 |
|
899D METROPCS NETWORKS, LLC |
730 |
|
2017-09-18 |
|
| 909-408
| 1 |
|
671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS |
730 |
|
2017-09-25 |
|
| 909-408
| 2 |
|
026K BARR TELL USA, LLC |
730 |
|
2022-08-08 |
|
| 909-408
| 3 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
730 |
|
2017-09-22 |
|
| 909-408
| 4 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
730 |
|
2017-09-22 |
|
| 909-408
| 5 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
730 |
|
2017-09-22 |
|
| 909-408
| 6 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
730 |
|
2017-12-02 |
|
| 909-408
| 7 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
730 |
|
2017-09-25 |
|
| 909-408
| 8 |
|
576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB |
730 |
|
2017-11-28 |
|
| 909-408
| 9 |
|
899D METROPCS NETWORKS, LLC |
730 |
|
2017-09-18 |
|
| 909-418
| A |
RILTCA11DS0 |
7480 PACIFIC BELL (COMPETITIVE) |
730 |
|
|
|
| 909-418
| 0 |
|
899D METROPCS NETWORKS, LLC |
730 |
|
2004-04-01 |
|
| 909-418
| 1 |
|
6529 T-MOBILE USA, INC. |
730 |
|
2002-12-14 |
|
| 909-418
| 2 |
|
7480 PACIFIC BELL (COMPETITIVE) |
730 |
|
|
|
| 909-418
| 3 |
|
7480 PACIFIC BELL (COMPETITIVE) |
730 |
|
|
|
| 909-418
| 4 |
|
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
730 |
|
2004-03-07 |
|
| 909-418
| 5 |
|
7480 PACIFIC BELL (COMPETITIVE) |
730 |
|
|
|
| 909-418
| 6 |
|
7480 PACIFIC BELL (COMPETITIVE) |
730 |
|
|
|
| 909-418
| 7 |
|
6529 T-MOBILE USA, INC. |
730 |
|
2002-12-16 |
|
| 909-418
| 8 |
|
6529 T-MOBILE USA, INC. |
730 |
|
2002-12-16 |
|
| 909-418
| 9 |
|
899D METROPCS NETWORKS, LLC |
730 |
|
2004-04-01 |
|
| 909-437
| A |
RVSDCAYAGT1 |
6529 T-MOBILE USA, INC. |
730 |
|
|
|
| 909-437
| 0 |
|
6529 T-MOBILE USA, INC. |
730 |
|
|
|
| 909-437
| 1 |
|
6529 T-MOBILE USA, INC. |
730 |
|
|
|
| 909-437
| 2 |
|
6529 T-MOBILE USA, INC. |
730 |
|
|
|
| 909-437
| 3 |
|
6529 T-MOBILE USA, INC. |
730 |
|
|
|
| 909-437
| 4 |
|
6529 T-MOBILE USA, INC. |
730 |
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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