| | | | | | STD Numbers of Uttar Pradesh | |
| | Uttar Pradesh Areas | STD Codes | Kaisarganj-Ii | 05255 | Kalpi | 05164 | Kannauj | 05694 | Kanpur | 0512 | Karchhana | 05333 | Karhal | 05677 | Karvi-I | 05198 | Karvi-Ii | 05194 | Kasganj | 05744 | Kerakat | 05450 | Khaga | 05182 | Khair | 05724 | Khalilabad-I | 05547 | Khalilabad-Ii | 05548 | Kheri-I | 05872 | Kheri-Ii | 05870 | Khurja | 05738 | Konch | 05165 | Kunda | 05341 | Lalganj | 05463 | Lalitpur-I | 05176 | Lalitpur-Ii | 05175 |
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