Telephone numbers in India - wikipedia Telephone numbers in India A public call office ( PCO ) in Auroville, India Contents 1 Fixed ( landline ) numbers 2 Short code 3 Telemarketing 4 References 5 External links Fixed ( landline ) numbers Subscriber Trunk Dialling ( STD ) codes are assigned to each city / town / village, with the larger Metro cities having shorter area codes ( STD codes ), which are from 2 to 8 digits long. For example, 11 - New Delhi, Delhi 22 - Mumbai, Maharashtra 33 - Kolkata, West Bengal 44 - Chennai, Tamil Nadu 20 - Pune, Maharashtra 40 - Hyderabad, Telangana 79 - Ahmedabad, Gujarat 80 - Bangalore, Karnataka Tier - 2 Cities in India have STD code with 3 digits. For example, 120 - Ghaziabad / Noida, Uttar Pradesh ' `` 124 - Gurgaon, Haryana 135 - Dehradun, Uttarakhand 141 - Jaipur, Rajasthan 161 - Ludhiana, Punjab 175 - Patiala, Punjab 181 - Jalandhar, Punjab 231 - Kolhapur, Maharashtra 240 - Aurangabad, Maharashtra 484 - Kochi, Kerala 551 - Gorakhpur, Uttar Pradesh 562 - Agra, Uttar Pradesh 581 - Bareilly, Uttar Pradesh 591 - Moradabad, Uttar Pradesh 612 - Patna, Bihar 641 - Bhagalpur, Bihar 657 - Jamshedpur, Jharkhand 870 - Warangal, Telangana Kanpur and Lucknow were the two cities between which the first STD call of the country was made. The total length of all phone numbers ( STD code and the phone number ) in India is constant at 10 digits, for example 7513200000 signifies a STD code i.e. 751 Gwalior & the phone number 3200000. Land line numbers are at most 8 digits long ( usually in major metros ). Due to the availability of multiple operators offering fixed line services ( either over wire or wireless ), there is an operator - code for each telephone number, which is the first digit in the phone number. These are BSNL - Numbers start with a ' 2 ' MTNL - Numbers start with a ' 2 ' Reliance Communications - Numbers start with a ' 3 ' Bharti Airtel - Numbers start with a ' 4 ' MTS India - Numbers start with a ' 5 ' Datacom Solutions - Numbers start with a ' 6 ' Tata Indicom - Numbers start with a ' 7 ' Thus, a number formatted as 020 - 30303030 means a fixed - line Reliance number in Pune, while 011 - 20000198 is an MTNL fixed line in Delhi and 033 - 45229320 is a fixed - line Airtel number in Kolkata, and 07582 - 221434 is a BSNL number from Sagar, Madhya Pradesh. No prefix is required to call from one landline to another in the same STD area. A prefix of `` 0 + STD code '' is required to dial from a landline phone in one STD code area to another. A prefix of `` 0 + STD code '' is required to dial from a mobile phone in India to any landline number, irrespective of STD area. For example, to dial a landline number in Indore, one would have to dial from a landline in Indore : the phone number from a landline in Mumbai : 0731 and then the phone number from any mobile phone in India : 0731 and then the phone number from outside India : Country Code 91 then 731 and then the phone number Before 10 March 2009, as per Department of Telecommunications memorandum dated 9 February 2009. there were some exceptions to this general rule for STD areas falling close to each other ( within a radius of 200 kilometre ), where `` 0 '' can be replaced with `` 95 '' e.g. to dial Delhi from Gurgaon, one dials 9511 + landline number. Mobile Numbers Main article : Mobile telephone numbering in India A typical mobile number in India is `` + 91 - XXXX - NNNNNN ''. Where the first four digits indicate a operator 's code, while the remaining six digits are unique to the subscribers. However, with portability in place, the first four digits may not indicate a particular operator. Short code There are many companies in the Indian market who rent keywords, on a monthly basis, whose characters, on a typical mobile phone keypad, represent short codes. Short codes are five digits in length and have to start with the digit ' 5 ' like 58888 as of 2007. Previously, they were four - digit in number and could be of any combination, like 8888 or 7827. The current five digits can be extended by three digits further representing 3 additional characters. Messages sent to these Short Codes are commonly referred to as Premium Rate SMS Messages and cost from per message depending on the operator as well as the service and the company. p Telemarketing Telemarketers have been issued 10 - digit telephone numbers starting with 140 ( 140XXXXXXX ) by the Department of Telecommunications on TRAI 's request. References Jump up ^ `` Maharashtra STD Codes ''. Retrieved 2017 - 07 - 17. Jump up ^ `` DoT Memorandum 10th Feb 09. '' ( PDF ). Retrieved 2009 - 04 - 08. Jump up ^ TRAI for 10 - digit landline numbers to meet crunch Jump up ^ Trai fails to set deadline on pesky calls Jump up ^ ' Publishing tariff plans by telecom service providers mandatory ' External links Department of Telecommunications, Government of India Telecom Regulatory Authority of India India National Numbering Plan of 2003 Telephone numbers in Asia Sovereign states Afghanistan Armenia Azerbaijan Bahrain Bangladesh Bhutan Brunei Cambodia China Cyprus East Timor ( Timor - Leste ) Egypt Georgia India Indonesia Iran Iraq Israel Japan Jordan Kazakhstan North Korea South Korea Kuwait Kyrgyzstan Laos Lebanon Malaysia Maldives Mongolia Myanmar Nepal Oman Pakistan Philippines Qatar Russia Saudi Arabia Singapore Sri Lanka Syria Tajikistan Thailand Turkey Turkmenistan United Arab Emirates Uzbekistan Vietnam Yemen States with limited recognition Abkhazia Artsakh Northern Cyprus Palestine South Ossetia Taiwan Dependencies and other territories British Indian Ocean Territory Christmas Island Cocos ( Keeling ) Islands Hong Kong Macau Telecommunications History Beacon Broadcasting Cable protection system Cable TV Communications satellite Computer network Drums Electrical telegraph Fax Heliographs Hydraulic telegraph Internet Mass media Mobile phone Optical telecommunication Optical telegraphy Pager Photophone Prepaid mobile phone Radio Radiotelephone Satellite communications Semaphore Smartphone Smoke signals Telecommunications history Telautograph Telegraphy Teleprinter ( teletype ) Telephone The Telephone Cases Television Timeline of communication technology Undersea telegraph line Videoconferencing Videophone Videotelephony Whistled language Pioneers Edwin Howard Armstrong John Logie Baird Paul Baran Alexander Graham Bell Tim Berners - Lee Jagadish Chandra Bose Vint Cerf Claude Chappe Donald Davies Lee de Forest Philo Farnsworth Reginald Fessenden Elisha Gray Erna Schneider Hoover Charles K. Kao Hedy Lamarr Innocenzo Manzetti Guglielmo Marconi Antonio Meucci Radia Perlman Alexander Stepanovich Popov Johann Philipp Reis Nikola Tesla Camille Tissot Alfred Vail Charles Wheatstone Vladimir K. Zworykin Transmission media Characteristic impedance Coaxial cable Electromagnetic radiation Electrical cable Free - space optical communication Heaviside condition Loading coil Molecular communication Optical fiber Telegrapher 's equations Network topology and switching Links Nodes Terminal node Network switching ( circuit packet ) Telephone exchange Multiplexing Space - division Frequency - division Time - division Polarization - division Orbital angular - momentum Code - division Networks ARPANET BITNET Cellular network Computer CYCLADES Ethernet FidoNet Internet ISDN LAN Mobile NGN NPL network Public Switched Telephone Radio Telecommunications equipment Television Telex WAN Wireless World Wide Web Portal Retrieved from `` https://en.wikipedia.org/w/index.php?title=Telephone_numbers_in_India&oldid=808046757 '' Categories : Telephone numbers by country Telephone numbers in India India communications - related lists Hidden categories : Articles which use infobox templates with no data rows All articles with unsourced statements Articles with unsourced statements from September 2011 Talk Contents About Wikipedia Français ଓଡ଼ିଆ தமிழ் Edit links This page was last edited on 31 October 2017, at 15 : 24. 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Question: who provides fixed line telephone services with numbers starting with 5
Answer: MTS India