The Area Codes of Mongolia:
| City/Town or Region | Area code | |
|---|---|---|
| 1. | Adaatsag | 5941 (+976 5941) |
| 2. | Airag | 5241 (+976 5241) |
| 3. | Alag-Erdene (Khatgal) | 3841 (+976 3841) |
| 4. | Aldarkhaan | 4641 (+976 4641) |
| 5. | Altai | 4241 (+976 4241) |
| 6. | Altai | 4341 (+976 4341) |
| 7. | Altai city (Yesönbulag sum) | 482 (+976 482) |
| 8. | Altai sum | 4841 (+976 4841) |
| 9. | Altanbulag | 3641 (+976 3641) |
| 10. | Altanbulag | 2741 (+976 2741) |
| 11. | Altanshiree | 5242 (+976 5242) |
| 12. | Altantsögts | 4242 (+976 4242) |
| 13. | Arbulag | 3842 (+976 3842) |
| 14. | Argalant | 2742 (+976 2742) |
| 15. | Arkhust | 2743 (+976 2743) |
| 16. | Arvaikheer city | 322 (+976 322) |
| 17. | Asgat | 4642 (+976 4642) |
| 18. | Asgat | 5141 (+976 5141) |