Ok, as you want to know the area code and the dial code of the Nairobi so here it is given below

Kenya Phone Code: 254

Nairobi Area Code: 20

Nairobi Dial Code: +254 20

Kenya Dial Codes
City Area Code Dialing Code
Garissa 46 +254 46

Kakamega 56 +254 56

Kericho 52 +254 52

Kisii 58 +254 58

Kisumu 57 +254 57

Kitale 54 +254 54

Malindi 42 +254 42

Marsabit 69 +254 69

Meru 64 +254 64

Mombasa 41 +254 41

Nairobi 20 +254 20

Nakuru 51 +254 51

Thika 67 +254 67

Voi 43 +254 43