Note: Dial ‘0’ or +91 before the given STD code
| City | Area/Town | STD Code |
| AGRA | JARAR | 5614 |
| AGRA | ACHHNERA | 5613 |
| AGRA | FEROZABAD | 5612 |
| AGRA | AGRA | 562 |
| ALIGARH | KHAIR | 5724 |
| ALIGARH | ATRAULI | 5723 |
| ALIGARH | HATHRAS | 5722 |
| ALIGARH | SIKANDRA RAO | 5721 |
| ALIGARH | ALIGARH | 571 |
| ALLAHABAD | SORAON | 5335 |
| ALLAHABAD | MEJA (SIRSA) | 5334 |
| ALLAHABAD | KARCHHANA (SHANKERGARH) | 5333 |
| ALLAHABAD | PHOOLPUR | 5332 |
| ALLAHABAD | BHARWARI | 5331 |
| ALLAHABAD | ALLAHABAD | 532 |
| ALMORA | DHARCHULA | 5967 |
| ALMORA | RANIKHET | 5966 |
| ALMORA | CHAMPAWAT | 5965 |
| ALMORA | PITHORAGARH | 5964 |
| ALMORA | BAGESHWAR | 5963 |
| ALMORA | ALMORA | 5962 |
| ALMORA | MUNSIARI | 5961 |
| AZAMGARH | SAGRI | 5466 |
| AZAMGARH | PHULPUR-II (ATRAWLIA) | 5465 |
| AZAMGARH | MAUNATHBHANJAN | 5464 |
| AZAMGARH | LALGANJ | 5463 |
| AZAMGARH | AZAMGARH | 5462 |
| AZAMGARH | GHOSI | 5461 |
| AZAMGARH | PHULPUR-I (PHULPUR) | 5460 |
| BADAUN | GUNNAUR | 5836 |
| BADAUN | BISAULI | 5834 |
| BADAUN | SAHASWAN | 5833 |
| BADAUN | BADAUN | 5832 |
| BADAUN | DATAGANJ | 5831 |
| BAHRAICH | KAISARGANH-II (MAHASI) | 5255 |
| BAHRAICH | NANPARAH-II (MIHINPURWA) | 5254 |
| BAHRAICH | NANPARA-I (NANPARA) | 5253 |
| BAHRAICH | BAHRAICH-I (BAHRAILH) | 5252 |
| BAHRAICH | KAISARGANJ-I (KAISERGANJ) | 5251 |
| BAHRAICH | BAHRAICH-II (BHINGA) | 5250 |
| BALLIA | BALLIA-I (BALLIA) | 5498 |
| BALLIA | BALLIA-II (RANIGANJ) | 5496 |
| BALLIA | BANSDEEH | 5494 |
| BALLIA | RASARA | 5491 |
| BANDA | KARVI -I (KARVI) | 5198 |
| BANDA | MAU (RAJAPUR) | 5195 |
| BANDA | KARVI-II (MANIKPUR) | 5194 |
| BANDA | BANDA | 5192 |
| BANDA | NARAINI (ATTARRA) | 5191 |
| BANDA | BABERU | 5190 |
| BARABANKI | BARABANKI | 5248 |
| BARABANKI | HAIDERGARH | 5244 |
| BARABANKI | RAMSANEHI GHAT | 5241 |
| BARABANKI | FATEHPUR | 5240 |
| BAREILLY | NAWABGANJ | 5825 |
| BAREILLY | AONLA-II (RAMNAGAR) | 5824 |
| BAREILLY | AONLA -I | 5823 |
| BAREILLY | BAHERI | 5822 |
| BAREILLY | PITAMBERPUR | 5821 |
| BAREILLY | BAREILLY | 581 |
| BASTI | KHALILABAD-II (MEHDAWAL) | 5548 |
| BASTI | KHALILABAD -I | 5547 |
| BASTI | HARRAIYA | 5546 |
| BASTI | BANSI | 5545 |
| BASTI | NAUGARH-I (TETRIBAZAR) | 5544 |
| BASTI | NAUGARH-II (BARHANI) | 5543 |
| BASTI | BASTI | 5542 |
| BASTI | DOMARIYAGANJ | 5541 |
| BIJNORE | BIJNORE-II (CHANDPUR) | 1345 |
| BIJNORE | DHAMPUR | 1344 |
| BIJNORE | NAGINA | 1343 |
| BIJNORE | BIJNORE-I | 1342 |
| BIJNORE | NAJIBABAD | 1341 |
| DEHRADUN | CHAKRATA (DAKPATHER) | 1360 |
| DEHRADUN | DEHRADUN | 135 |
| DEORIA | DEORIA | 5568 |
| DEORIA | CAPTANGANJ-I (CAPTANGANJ) | 5567 |
| DEORIA | SALEMPUR-I (SALEMPUR) | 5566 |
| DEORIA | PADRAUNA | 5564 |
| DEORIA | CAPTANGANJ (KHADDA) | 5563 |
| DEORIA | SALEMPUR-II (BARHAJ) | 5561 |
| ETAH | JALESAR | 5745 |
| ETAH | KASGANJ | 5744 |
| ETAH | ETAH | 5742 |
| ETAH | ALIGANJ (GANJDUNDWARA) | 5740 |
| ETAWAH | ETAWAH | 5688 |
| ETAWAH | AURAIYA | 5683 |
| ETAWAH | BIDHUNA | 5681 |
| ETAWAH | BHARTHANA | 5680 |
| FAIZABAD | FAIZABAD | 5278 |
| FAIZABAD | AKBARPUR-II (JALALPUR) | 5275 |
| FAIZABAD | TANDA-II (BASKHARI) | 5274 |
| FAIZABAD | TANDAI-I (TANDA) | 5273 |
| FAIZABAD | AKBARPUR-I (AKBARPUR) | 5271 |
| FAIZABAD | BIKAPUR | 5270 |
| FARRUKHABAD | KANNAUJ | 5694 |
| FARRUKHABAD | FARRUKHABAD (FATEGARH) | 5692 |
| FARRUKHABAD | CHHIBRAMAU | 5691 |
| FARRUKHABAD | KAIMGANJ | 5690 |
| FATEHPUR | FATEHPUR-II (GAZIPUR) | 5183 |
| FATEHPUR | KHAGA | 5182 |
| FATEHPUR | BINDKI | 5181 |
| FATEHPUR | FATEH-PUR-I (FATEHPUR) | 5180 |
| GHAZIABAD | KHURJA | 5738 |
| GHAZIABAD | SIYANA | 5736 |
| GHAZIABAD | SIKANDRABAD | 5735 |
| GHAZIABAD | DEBAI | 5734 |
| GHAZIABAD | PAHASU | 5733 |
| GHAZIABAD | BULANDSHAHR | 5732 |
| GHAZIABAD | GARHMUKTESHWAR | 5731 |
| GHAZIABAD | MODINAGAR | 1232 |
| GHAZIABAD | HAPUR | 122 |
| GHAZIABAD | GHAZIABAD+DADRI | 120 |
| GHAZIPUR | ZAMANIA | 5497 |
| GHAZIPUR | SAIDPUR | 5495 |
| GHAZIPUR | MOHAMDABAD | 5493 |
| GHAZIPUR | GHAZIPUR | 548 |
| GONDA | UTRAULA | 5265 |
| GONDA | BALARAMPUR-II (TULSIPUR) | 5264 |
| GONDA | BALARAMPUR-I (BALRAMPUR) | 5263 |
| GONDA | GONDA | 5262 |
| GONDA | TARABGANJ-II (COLONELGANJ) | 5261 |
| GONDA | TARABGANJ-I (TERABGANJ) | 5260 |
| GORAKHPUR | BANSGAON -I (BANSGAON) | 5525 |
| GORAKHPUR | PHARENDA-II (ANAND NAGAR) | 5524 |
| GORAKHPUR | MAHARAJGANJ | 5523 |
| GORAKHPUR | PHARENDA-I (COMPIERGANJ) | 5522 |
| GORAKHPUR | BANSGAON-II (BARHAL GANJ) | 5521 |
| GORAKHPUR | GORAKHPUR | 551 |
| HAMIRPUR | MAUDAHA | 5284 |
| HAMIRPUR | CHARKHARI | 5283 |
| HAMIRPUR | HAMIRPUR | 5282 |
| HAMIRPUR | MAHOBA | 5281 |
| HAMIRPUR | RATH | 5280 |
| HARDOI | BILGRAM-II (SANDI) | 5855 |
| HARDOI | SANDILA | 5854 |
| HARDOI | SHAHABAD | 5853 |
| HARDOI | HARDOI-I (HARDOI) | 5852 |
| HARDOI | BILGAM-I (MADHOGANJ) | 5851 |
| HARDOI | HARDOI-II (BAGHAVLI) | 5850 |
| JAUNPUR | MACHLISHAHAR | 5454 |
| JAUNPUR | SHAHGANJ | 5453 |
| JAUNPUR | JAUNPUR | 5452 |
| JAUNPUR | MARIYAHU | 5451 |
| JAUNPUR | KERAKAT | 5450 |
| JHANSI | MAURANIPUR | 5178 |
| JHANSI | LALITPUR-I (LALITPUR) | 5176 |
| JHANSI | LALITPUR-II (TALBEHAT) | 5175 |
| JHANSI | JHANSI | 5174 |
| JHANSI | MEHRAUN | 5172 |
| JHANSI | GARAUTH | 5171 |
| JHANSI | CHIRGAON (MOTH) | 5170 |
| KANPUR | GHATAMPUR | 5115 |
| KANPUR | DERAPUR (JHINJAK) | 5114 |
| KANPUR | BHOGNIPUR (PAKHRAYAN) | 5113 |
| KANPUR | BILHAUR | 5112 |
| KANPUR | AKBARPUR | 5111 |
| KANPUR | KANPUR | 512 |
| KOTDWARA | JOSHIMATH-I | 1389 |
| KOTDWARA | LANSDOWN-I | 1386 |
| KOTDWARA | LANSDOWN-II (KOTDWARA) | 1382 |
| KOTDWARA | JOSHIMATH-II (BADRINATH) | 1381 |
| KOTDWARA | CHAMOLI | 1372 |
| KOTDWARA | PAURI-I | 1368 |
| KOTDWARA | UKHIMATH (GUPTKASHI) | 1364 |
| KOTDWARA | KARAN PRAYAG | 1363 |
| KOTDWARA | LANSDOWN-III (SYUNSI) | 1348 |
| KOTDWARA | PAURI-II (BUBAKHAL) | 1346 |
| LAKHIMPUR KHERI | MOHAMDI-I (MOHAMDI) | 5876 |
| LAKHIMPUR KHERI | MOHAMDI-II (MAIGALGANJ) | 5875 |
| LAKHIMPUR KHERI | NIGHASAN-III (DHAURAHRA) | 5874 |
| LAKHIMPUR KHERI | NIGHASAN-II (TIKONIA) | 5873 |
| LAKHIMPUR KHERI | KHERI-I (KHERI) | 5872 |
| LAKHIMPUR KHERI | NIGHASAN-I (PALLIAKALAN) | 5871 |
| LAKHIMPUR KHERI | KHERI-II (BHIRA) | 5870 |
| LUCKNOW | MALIHABAD | 5212 |
| LUCKNOW | LUCKNOW | 522 |
| MAINPURI | KARHAL | 5677 |
| MAINPURI | SHIKOHABAD | 5676 |
| MAINPURI | BHOGAON | 5673 |
| MAINPURI | MAINPURI | 5672 |
| MAINPURI | JASRANA | 5671 |
| MATHURA | MANT (VRINDAVAN) | 5664 |
| MATHURA | CHHATA (KOSIKALAN) | 5662 |
| MATHURA | SADABAD | 5661 |
| MATHURA | MATHURA | 565 |
| MEERUT | SARDHANA | 1237 |
| MEERUT | BAGHPAT-II (BARAUT) | 1234 |
| MEERUT | MAWANA | 1233 |
| MEERUT | MEERUT | 121 |
| MIRZAPUR | DUDHI-I (DUDHI) | 5447 |
| MIRZAPUR | DUDHI-II (PIPRI) | 5446 |
| MIRZAPUR | ROBERTSGANJ -II (OBRA) | 5445 |
| MIRZAPUR | ROBERTSGANJ-I | 5444 |
| MIRZAPUR | CHUNUR | 5443 |
| MIRZAPUR | MIRZAPUR-I (MIRZAPUR) | 5442 |
| MIRZAPUR | MIRZAPUR-II (HALLIA) | 5440 |
| MORADABAD | HASANPUR | 5924 |
| MORADABAD | SAMBHAL | 5923 |
| MORADABAD | AMROHA | 5922 |
| MORADABAD | BILARI | 5921 |
| MORADABAD | MORADABAD | 591 |
| MUZAFFARNAGAR | KAIRANA (SHAMLI) | 1398 |
| MUZAFFARNAGAR | JANSATH (KHATAULI) | 1396 |
| MUZAFFARNAGAR | BUDHANA | 1392 |
| MUZAFFARNAGAR | MUZAFFAR NAGAR | 131 |
| NAINITAL | KICHHA-II (BAZPUR) | 5949 |
| NAINITAL | KHATIMA-II (SITARGANJ) | 5948 |
| NAINITAL | KASHIPUR | 5947 |
| NAINITAL | HALDWANI-I | 5946 |
| NAINITAL | HALDWANI-II (CHORGALIAN) | 5945 |
| NAINITAL | KICHHA-I (RUDRAPUR) | 5944 |
| NAINITAL | KHATIMA | 5943 |
| NAINITAL | NAINITAL | 5942 |
| ORAI | JALAUN | 5168 |
| ORAI | KONCH | 5165 |
| ORAI | KALPI | 5164 |
| ORAI | ORAI | 5162 |
| PILIBHIT | PILIBHIT | 5882 |
| PILIBHIT | BISALPUR | 5881 |
| PILIBHIT | PURANPUR | 5880 |
| PRATAPGARH | PATTI | 5343 |
| PRATAPGARH | PRATAPGARH | 5342 |
| PRATAPGARH | KUNDA | 5341 |
| RAIBAREILLY | DALMAU-I (DALMAU) | 5317 |
| RAIBAREILLY | DALMAU-II (LALGANJ) | 5315 |
| RAIBAREILLY | SALON-II (JAIS) | 5313 |
| RAIBAREILLY | SALON -I (SALON) | 5311 |
| RAIBAREILLY | RAIBARELI | 535 |
| RAMPUR | SHAHABAD | 5960 |
| RAMPUR | RAMPUR | 595 |
| SAHARANPUR | DEOBAND | 1336 |
| SAHARANPUR | ROORKEE-II (HARDWAR) | 1334 |
| SAHARANPUR | ROORKEE-I | 1332 |
| SAHARANPUR | NAKUR (GANGOH) | 1331 |
| SAHARANPUR | SAHARANPUR | 132 |
| SAHJAHANPUR | POWAYAN | 5844 |
| SAHJAHANPUR | JALALABAD | 5843 |
| SAHJAHANPUR | SHAHJAHANPUR | 5842 |
| SAHJAHANPUR | TILHAR | 5841 |
| SITAPUR | MISRIKH -I (MISRIKH) | 5865 |
| SITAPUR | SIDHAULI (MAHMODABAD) | 5864 |
| SITAPUR | BISWAN | 5863 |
| SITAPUR | SITAPUR | 5862 |
| SITAPUR | MISRIKH-II (AURANGABAD) | 5861 |
| SULTANPUR | AMETHI | 5368 |
| SULTANPUR | KADIPUR | 5364 |
| SULTANPUR | SULTANPUR | 5362 |
| SULTANPUR | MUSAFIRKHANA | 5361 |
| UNNAO | SAFIPUR | 5144 |
| UNNAO | HASANGANJ | 5143 |
| UNNAO | PURWA (BIGHAPUR) | 5142 |
| UNNAO | UNNAO | 515 |
| UTTARKASHI | PARTAPNAGAR | 1379 |
| UTTARKASHI | DEOPRAYAG-I | 1378 |
| UTTARKASHI | BHATWARI-I (GANGOTRI) | 1377 |
| UTTARKASHI | TEHRI | 1376 |
| UTTARKASHI | RAJGARHI | 1375 |
| UTTARKASHI | BHATWARI-I (UTTARKASHI) | 1374 |
| UTTARKASHI | PUROLA | 1373 |
| UTTARKASHI | DUNDA | 1371 |
| UTTARKASHI | DEOPRAYAG-II (JAKHOLI) | 1370 |
| VARANSI | BHADOHI | 5414 |
| VARANSI | CHAKIA | 5413 |
| VARANSI | CHANDAULI (MUGALSARAI) | 5412 |
| VARANSI | VARANSI | 542 |