00994 and +994 are used interchangeably to dial Azerbaijani phone numbers from a mobile (more on the plus sign).
| Phone type | Dialing format | Or using + |
|---|---|---|
| Cell phone | 00 994 10 xxx xxxx | +994 10 xxx xxxx |
| Cell phone | 00 994 5x xxx xxxx | +994 5x xxx xxxx |
| Cell phone | 00 994 60 xxx xxxx | +994 60 xxx xxxx |
| Cell phone | 00 994 7x xxx xxxx | +994 7x xxx xxxx |
| Cell phone | 00 994 99 xxx xxxx | +994 99 xxx xxxx |
| Toll free | 00 994 88 xxx xxxx | +994 88 xxx xxxx |
| VoIP | 00 994 46 xxx xxxx | +994 46 xxx xxxx |
| Landlines | Dialing format | Or using + |
|---|---|---|
| Agjabedi | 00 994 21 xxx xxxx | +994 21 xxx xxxx |
| Baku | 00 994 12 xxx xxxx | +994 12 xxx xxxx |
| Barda | 00 994 20 xxx xxxx | +994 20 xxx xxxx |
| Ganja | 00 994 22 xxx xxxx | +994 22 xxx xxxx |
| Goychay | 00 994 20 xxx xxxx | +994 20 xxx xxxx |
| Imishli | 00 994 21 xxx xxxx | +994 21 xxx xxxx |
| Jalilabad | 00 994 25 xxx xxxx | +994 25 xxx xxxx |
| Khachmaz | 00 994 23 xxx xxxx | +994 23 xxx xxxx |
| Khankendi | 00 994 26 xxx xxxx | +994 26 xxx xxxx |
| Khirdalan | 00 994 12 xxx xxxx | +994 12 xxx xxxx |
| Lankaran | 00 994 25 xxx xxxx | +994 25 xxx xxxx |
| Mingechevir | 00 994 24 xxx xxxx | +994 24 xxx xxxx |
| Nakhchivan | 00 994 36 xxx xxxx | +994 36 xxx xxxx |
| Salyan | 00 994 21 xxx xxxx | +994 21 xxx xxxx |
| Shaki | 00 994 24 xxx xxxx | +994 24 xxx xxxx |
| Shamakhi | 00 994 20 xxx xxxx | +994 20 xxx xxxx |
| Shamkir | 00 994 22 xxx xxxx | +994 22 xxx xxxx |
| Shirvan | 00 994 21 xxx xxxx | +994 21 xxx xxxx |
| Sumgayit | 00 994 18 xxx xxxx | +994 18 xxx xxxx |
| Yevlakh | 00 994 22 xxx xxxx | +994 22 xxx xxxx |