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Central Office Code:320
This is the Central Office Code:320 page list. Its detail is as below.
| Central office code | Country code | Remarks | Usage |
|---|---|---|---|
| 320 | 1 246 | Not Allocated | VoIP |
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| Central office code | Country code | Remarks | Usage |
|---|---|---|---|
| 320 | 1 246 | Not Allocated | VoIP |