Local Calling Guide
Area code/prefix search
NPA: 840
[Rate centres in NPA 840]
[Dial plan for NPA 840]
NXX: 840
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 840-840
| A |
Ontario |
CA |
ONTRCAXPXOY |
624H ONVOY SPECTRUM, LLC |
730 |
|
2025-11-11 |
|
| 840-840
| 0 |
Ontario |
CA |
ONTRCAXPXPY |
649C ONVOY, LLC - CA |
730 |
|
2026-03-14 |
|
| 840-840
| 1 |
Ontario |
CA |
|
114J EXIANT COMMUNICATIONS LLC |
730 |
|
2026-04-23 |
|
| 840-840
| 2 |
Ontario |
CA |
|
373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA |
730 |
|
2026-08-22 |
|
| 840-840
| 3 |
Ontario |
CA |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
730 |
|
2026-11-06 |
|
| 840-840
| 4 |
Ontario |
CA |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
730 |
|
2026-11-06 |
|
| 840-840
| 5 |
Ontario |
CA |
ONTRCAXPXOY |
624H ONVOY SPECTRUM, LLC |
730 |
|
2025-11-11 |
|
| 840-840
| 6 |
Ontario |
CA |
ONTRCAXPXOY |
624H ONVOY SPECTRUM, LLC |
730 |
|
2025-11-11 |
|
| 840-840
| 7 |
Ontario |
CA |
ONTRCAXPXOY |
624H ONVOY SPECTRUM, LLC |
730 |
|
2025-11-11 |
|
| 840-840
| 8 |
Ontario |
CA |
ONTRCAXPXOY |
624H ONVOY SPECTRUM, LLC |
730 |
|
2025-11-11 |
|
| 840-840
| 9 |
Ontario |
CA |
ONTRCAXPXOY |
624H ONVOY SPECTRUM, LLC |
730 |
|
2025-11-11 |
|
Last updated: Sat, 10 Oct 2026 15:24:20 UTC
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