| | | | | | STD Numbers of Haryana | |
| | Haryana Areas | STD Codes | Adampur Mandi | 01669 | Ambala | 0171 | Assandh | 01749 | Bahadurgarh | 01276 | Barara | 01731 | Barwala | 01693 | Bawal | 01284 | Bawanikhera | 01254 | Bhiwani | 01664 | Charkhidadri | 01250 | Cheeka | 01743 | Chhachrauli | 01735 | Dabwali | 01668 | Ellenabad | 01698 | Faridabad | 0129 | Fatehabad | 01667 | Ferojpur Jhirka | 01268 | Gharaunda | 01748 | Gohana | 01263 | Gurgaon | 0124 | Hansi | 01663 | Hissar | 01662 |
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