There is no area code (STD code) 088 in India, but there are dozens of codes that begin with 088. You need two to five more digits. For example, 08855364 is the STD code for Achuthapuram. Locations with codes beginning 088 are generally in Andhra pradesh state.
In international format, an STD code beginning with 088 becomes +91 88...
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
The country code and area code of Ajmer, India is 91, (0)145.
The country code and area code of Allahabad- Allahabad, India is 91, (0)532.
The country code and area code of Dabhoi- Vadodara, India is 91, (0)2663.
The country code and area code of Meerut, India is 91, (0)121.
The country code and area code of Alwar, India is 91, (0)144.
The country code and area code of Dhoraji- Rajkot, India is 91, (0)2824.
The country code and area code of Mannargudi- Thanjavur, India is 91, (0)4367.
The country code and area code of Aurangabad- Aurangabad, India is 91, (0)240.
The country code and area code of Coimbatore- Coimbatore, India is 91, (0)422.
The country code and area code of Pulwama- Srinagar, India is 91, (0)1933.
The country code and area code of Bettiah- Motihari, India is 91, (0)6254.
The country code and area code of Arang- Raipur, India is 91, (0)7720.