Colombo City Numbers are a set of numerical codes that are used to identify specific areas within Colombo city. These codes range from 1 to 15 and are used by postal and administration purposes.These numbers are identified by a unique two digit code. Sometimes, Colombo City Number is further divided into smaller sub-areas. For example, Colombo 5 is divided into the Havelock Town, Kirulapone, Kirulapone North, Narahenpita.
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| Colombo City Numbers | 
The following table gives city numbers and inner suburbs of Colombo Municipal Council area.
| Colombo Code / City No. | Inner Suburb | 
| Colombo 0 | Port City (in construction progress) | 
| Colombo 1 | Colombo Fort | 
| Colombo 2 | Slave Island, Union Place | 
| Colombo 3 | Kollupitiya | 
| Colombo 4 | Bambalapitiya | 
| Colombo 5 | Havelock Town, Kirulapana | 
| Colombo 6 | Wellawatte, Pamankada, Narahenpita | 
| Colombo 7 | Cinnamon Gardens | 
| Colombo 8 | Borella | 
| Colombo 9 | Dematagoda | 
| Colombo 10 | Maradana, Panchikawatte | 
| Colombo 11 | Pettah | 
| Colombo 12 | Hultsdorf | 
| Colombo 13 | Kotahena, Bloemendhal | 
| Colombo 14 | Grandpass | 
| Colombo 15 | Mutwal, Modara, Mattakkuliya, Madampitiya | 
Overview of the fifteen areas in Colombo city
- Colombo 1: Fort. This area includes several important government buildings, commercial establishments, and tourist attractions, such as the Colombo lighthouse and colonial architectures.
- Colombo 2: Slave Island and Union Place. This area is home to apartments, commercial buildings, and notable landmarks, as well as the beautiful Gangaramaya Park & Seema Malakaya and Gangaramaya temple.
- Colombo 3: Kollupitiya. This area is known for its upscale residential neighborhoods, shopping malls, luxury hotels and restaurants, as well as the beautiful Galle Face Beach.
- Colombo 4: Bambalapitiya. This area has residential and commercial neighborhoods, with several schools, hospitals, and shopping centers.
- Colombo 5: Havelock Town, Kirulapana, and Narahenpita. This area has several government buildings, universities, hospitals, and several residential neighborhoods.
- Colombo 6: Wellawatte and Pamankada. This area has beautiful beaches, restaurants, and shopping centers as well as several high end residential neighborhoods.
- Colombo 7: Cinnamon Gardens. This area has several embassies, government buildings, and upscale residential neighborhoods, as well as several historic landmarks, including the National Museum of Colombo.
- Colombo 8: Borella. This area has residential and commercial neighborhoods, with several hospitals, schools, and government buildings.
- Colombo 9: Dematagoda. This area is known for its railway station, bus terminals, and several government offices, as well as several residential neighborhoods.
- Colombo 10: Maradana, Panchikawatte. This area is home to mix of commercial and residential neighborhoods.
- Colombo 11: Pettah. This is the commercial heart of Colombo. It has several markets, shops, and businesses, as well as several historic landmarks, including the Red mosque and the Old Town Hall.
- Colombo 12: Hulftsdorp. This area is a mix of residential and commercial neighborhoods, with several landmarks including the Supreme Court and Grand mosque.
- Colombo 13: Kotahena, Bloemendhal. This area has residential and commercial neighborhoods, as well as several religious landmarks, including the St. Anthony's Church and the Ponnambalawaneswarar temple.
- Colombo 14: Grandpass. This area is a mix of residential and commercial neighborhoods, with several lanfmarks such as Sugathadasa stadium and Kettarama community center.
- Colombo 15: Modara/Mutwal, Mattakkuliya, Madampitiya. It has fishing industry installments and port-related activities, as well as several residential neighborhoods.
Colombo 0
So far, there are numbers from 1 to 15. However, it is being said that Colombo 0 will be set after the completion of Colombo Port City. Therefore, Colombo city numbers will be range from 0 to 15.
