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| STD Numbers of Karnataka | |
| | Karnataka Areas | STD Codes | Belthangady | 08256 | Belur | 08177 | Bhadravati | 08282 | Bhalki | 08484 | Bhatkal | 08385 | Bidar | 08482 | Bijapur | 08352 | Biligi | 08425 | Chadchan | 08422 | Challakere | 08195 | Chamrajnagar | 08226 | Channagiri | 08189 | Channapatna | 08113 | Channarayapatna | 08176 | Chikkaballapur | 08156 | Chikkanayakanahalli | 08133 | Chikkodi | 08338 | Chikmagalur | 08262 | Chincholi | 08475 | Chintamani | 08154 | Chitradurga | 08194 | Chittapur | 08474 |
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