| Colombo - Kandy (1) |
| The Colombo - Kandy route (A1) is fallen through Peliyagoda, Kadawatha, Nittambuwa, Warakapola, Ambepussa, Kegalla, Mawanella, Kadugannawa and Peradeniya |
| 1 | Colombo | Kandy | 1-4 | Colombo | Galapitamada |
| 1-1 | Colombo | Kegalle | 1/245 | Negombo | Kandy |
| 1-1/245 | Kegalle | Negombo | 1/744 | Colombo | Padiyapelella |
| 1-2 | Colombo | Mawenella | 1/744-3 | Colombo | Rikillagaskada |
| 1-3 | Colombo | Warakapola | | | |
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| Colombo - Matara (2) |
| The Colombo - Matara route is fallen through some major cities such as Moratuwa, Panadura, kalutara, Aluthgama, Ambalangoda, Hikkaduwa and Galle.(Highway A2) |
| 2 | Colombo | Matara | 2-11 | Colombo | Deiyandara |
| 2-1 | Colombo | Galle | 2/1 | Matara | Kandy |
| 2-3 | Colombo | Ambalangoda | 2/8 | Matara | Mathale |
| 2-4 | Colombo | Yatiyana | 2/17 | Matara | Gampaha |
| 2/4-3 | Matara | Anuradhapura | 2/48 | Kaduruwela | Matara |
| 2-6 | Colombo | Deiyandara | 2/187 | Matara | Katunayake |
| 2-8 | Colombo | Meetiyagoda | 2/353 | Colombo | Panakaduwa |
| 2-9 | Colombo | Deiyandara | 2/366/368 | Colombo | Pasgoda |
| 2-10 | Colombo | Deiyandara | | | |
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| Colombo - Kataragama (3 - Via Ratnapura) |
| Major cities such as Nugegoda, Maharagama, Kottawa, Homagama, Avissawella, Eheliyagoda, Ratnapura, Pelmadulla and Embilipitiya are fallen within this route. |
| 3 | Colombo | Kataragama | 3/497 | Colombo | Suriyawewa |
| 3-1 | Colombo | Embilipitiya | 3/608 | Colombo | Panawela |
| 3-6 | Colombo | Rathnapura | 3/610 | Colombo | Amithirigala |
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| Colombo-Mannar (4) |
| This Route passes through Negambo, Chilaw, Puttalam and Medawachchiya. |
| 4 | Colombo | Mannar | 4-9/916 | Colombo | Galgamuwa |
| 4-1 | Colombo | Thaleimannar | 4-10 | Colombo | Eluvankulama |
| 4-3 | Colombo | Anuradhapura | 4-11 | Colombo | Chilaw |
| 4-3/842-1 | Colombo | Pulmudai | 4-12 | Kalpitiya | Mannar |
| 4-5 | Negombo | Anuradhapura | 4-13 | Putlam | Mannar |
| 4-7 | Colombo | Putlam | 4/844 | Colombo | Sripura |
| 4-8 | Colombo | Kalaoya | 4/926 | Colombo | Bingiriya |
| 4-9 | Colombo | Anamduwa | | | |
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| Colombo - Kurunegala (5 - via minuwangoda, 6 - via Warakapola) |
| This route goes through Peliyagoda, wattala, Ja-Ela, Minuwangoda, Divulapitiya and Giriulla. |
| 5 | Colombo | Kurunegala | 5/245 | Katunayake | Kurunegala |
| 5-1 | Colombo | Narammala | 6 | Colombo | Kurunegala |
| 5-10 | Colombo | Anuradhapura | 6/57/540 | Colombo | Galnewa |
| 5/57/540 | Galnewa | Katunayake | | | |
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| Colombo - Kalpitiya |
| This Route passes through Negambo, Chilaw and Puttalam. |
| 7 | Colombo | Kalpitiya | 7-4 | Ja-Ela | Kalpitiya |
| 7-1 | Negombo | Kalpitiya | | | |
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| Colombo - Matale |
| Both Colombo - Matale and Colombo - Wattegama routes are fallen through Kandy and Katugastota. |
| 8 | Colombo | Matale | 8-580 | Colombo | Matale - Dehiattakandiya |
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| Colombo - Theldeniya |
| The route passes through Kandy and Katugastota. |
| 9 | Colombo | Theldeniya | 9-2 | Colombo | Digana |
| 9-1 | Colombo | Wattegama | | | |
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| Kataragama - Kandy |
| The passes major cities such as Wellawaya, Bandarawela, welimada and Nuwaraeliya. |
| 10 | Kataragama | Kandy |
| 10 | Kataragama | Welimada (Via)Bandarawela Gaswatha |
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| Matara - Ratnapura |
| 11 | Matara | Rathnapura |
| 11-1 | Matara | Embilipitiya |
| 11-2 | Embilipitiya | Karapitiya |
| 11-3 | Matara | Suriyawewa |
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| Colombo - Dayagama |
| 13-2 | Colombo | Dayagama |
| 13-4 | Hatton | Badulla |
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| Kandy - Monaragala |
| The route passes through Bibila and Mahiyangana. |
| 14 | Kandy | Monaragala |
| 14/1/458 | Mathugama | Monaragala |
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| Colombo - Medawachchiya |
| 15 | Colombo | Medawachchiya | 15-8 | Kegalle | Anuradhapura |
| 15-1 | Colombo | Anuradhapura | 15-9 | Kurunegala | Galenbindunuwewa |
| 15-1-1 | Colombo | Anuradhapura | 15-10 | Ingiriya | Anuradhapura |
| 15-2 | Colombo | Sripura | 15-11 | Colombo | Janakapura |
| 15-3 | Colombo | Kekirawa | 15-16 | Horowpathana | Kurunegala |
| 15-4 | Colombo | Galnewa | 15-17 | Kurunegala | Anuradhapura |
| 15-5 | Kurunegala | Kekirawa | 15-21/490 | Colombo | Galnewa |
| 15-5/544 | Kurunegala | Galnewa | 15/87 | Colombo | Mannar |
| 15-5/544-1 | Kurunegala | Bulnewa | 15/835 | Colombo | Horowpathana |
| 15-6 | Colombo | Galenbindunuwewa | 15/825-1 | Kurunegala | Galenbindunuwewa |
| 15-7 | Colombo | Vavuniyava | 15/968 | Colombo | Wewala |
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| Colombo-Nawalapitiya |
| This route passes through Avissawella, Kitulgala and Ginigathena. |
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| Panadura-Kandy (17 Via Nugegoda, Kotte and Belummahara) |
| The Panadura - Kandy route is a famous route which goes via Moratuwa, Dehiwala, Nugegoda, Battaramulla, Kaduwela and Belummahara. |
| 17 | Panadura | Kandy |
| 17-1 | Kurunegala | Panadura |
| 17/15-01 | Panadura | Anuradhapura |
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| Colombo-Hatton |
| Goes through Avissawella, Kitulgala and Ginigathhena. |
| 18-2 | Colombo | Hatton | 18-6 | Colombo | Bagawanthalawa |
| 18-5 | Colombo | Pundaluoya | 18/701 | Colombo | Rawanagoda |
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| Colombo-Gampola |
| The goes via Peradeniya. |
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| Kandy-Badulla (21- Mahaweli Raja Mawatha) |
| The route goes through Tennekumbura and Adhikarigama. |
| 21 | Kandy | Badulla |
| 21-6 | Colombo | Badulla |
| 21/312 | Badulla | Kandy |
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| Kandy - Ampara (22- via Mahiyangana) |
| Via Hunnasgiriya, Hasalaka, mahiyanagana, Padiyatalawa and Mahaoya. |
| 22-1 | Kandy | Akkaraipattu | 22-6-1 | Kandy | Dehiattakandiya |
| 22-2 | Kandy | Ampara | 22-6-2 | Kandy | Nuwaragala |
| 22-3 | Kandy | Tempitiya | 22-6-3 | Keselpotha | Kandy |
| 22-4 | Mahiyanganaya | Ampara | 22-7 | Colombo | Kalmunai |
| 22-5 | Kandy | Mahiyanganaya | 22-8 | Colombo | Ampara |
| 22-5/217 | Aralaganwila | Padiyatalawa | 22-9 | Colombo | Nindavur |
| 22-6 | Kandy | Siripura | 22/75/218 | Ampara | Anuradhapura |
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| Avissawella - Kithulgala |
| 23 | Avissawella | Kithulgala |
| 23-1 | Avissawella | Ginigathhena |
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| Colombo - Hakmana |
| 26 | Colombo | Hakmana | 27-2 | Galle | Dehiattakandiya |
| 26-1 | Colombo | Middeniya | 27/218/058 | Wellawaya | Anuradhapura |
| 26-2 | Colombo | Kirinda | 28 | Colombo | Mapalagama |
| 26-3 | Colombo | Deiyandara | | | |
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| Badulla - Batticaloa |
| 30 | Badulla | Batticaloa |
| 30-5 | Badulla | Mahaoya |
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| Matara - Bandarawela |
| 31 | Matara | Bandarawela | 31-3 | Galle | Badulla |
| 31-1 | Matara | Nuwaraeliya | 31-4 | Beliatta | Bandarawela |
| 31-2 | Matara | Badulla | | | |
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| Colombo - Kataragama (32 - Via Galle, Matara and Tangalle) |
| Via Kalutara, Ambalangoda, Galle and Matara. |
| 32 | Colombo | Kataragama | 32/17/49 | Thangalle | Trincomalee |
| 32-1 | Colombo | Hambanthota | 32/49 | Thangalle | Trincomalee |
| 32-4 | Colombo | Thangalle | 32/87-2 | Vavuniyava | Kataragama |
| 32-5 | Colombo | Middeniya | 32/493 | Colombo | Angunukolapelessa |
| 32-7/1 | Walasmulla | Kandy | | | |
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| Negambo |
| 34-3 | Negombo | Kurunegala |
| 34-4 | Negombo | Giriulla |
| 34-10 | Negombo | Trincomalee |
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| Galle - Ampara |
| 35 | Galle | Ampara | 35-7 | Ampara | Ambalangoda |
| 35-1 | Matara | Ampara | 35-8 | Monaragala | Karapitiya |
| 35-3 | Matara | Monaragala | 35/303 | Matara | Pothuwil |
| 35-6 | Galle | Mahaoya | | | |
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| Kandy - Mahiyanganaya |
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| Colombo - Mahiyanganaya - Bibila |
| 38 | Colombo | Bibile |
| 38-1 | Colombo | Mahiyanganaya |
| 38-3 | Colombo | Dehiattakandiya |
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| Kandy - Kaduruwela |
| 41-2 | Kandy | Kaduruwela | 41-10 | Kandy | Onegama |
| 41-2/686 | Kandy | Bimpokuna | 41-11 | Kandy | Arunapura |
| 41-2/962 | Kandy | Sungawila | 41/48 | Kandy | Batticaloa / iyuiiyui |
| 41-3 | Kandy | Buddhayaya | | | |
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| Colombo- Udugama (42) |
| 42 | Colombo | Udugama | 42-8 | Kandy | Horowpathana |
| 42-2 | Kandy | Anuradhapura | 42-9 | Colombo | Thawalama |
| 42-5 | Kandy | Nochchiyagama | 42-13 | Matale | Galnewa |
| 42-8 | Colombo | Mapalagama | 42/430 | Colombo | Morawaka |
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| Kandy - Anuradhapura - Trincomalee |
| 43 | Kandy | Anuradhapura | 45 | Kandy | Trincomalee |
| 43-1 | Kandy | Mannar | 45-1 | Mathale | Trincomalee |
| 43-8 | Vavuniyava | Hatton | 45-2 | Hatton | Trincomalee |
| 43/857 | Kandy | Vavuniyava | 46 | Kegalle | Kaduruwela |
| 44-6 | Kandy | Nuwaragala | | | |
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| Kandy - Nuwaraeliya |
| Via Gampola, Pussellawa and Ramboda. |
| 47 | Kandy | Nuwaraeliya | 47-3/328 | Kandy | Lunuwatte |
| 47-3 | Kandy | Welimada | 47/1 | Kandy | Bandarawela |
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| Colombo - Kalmunai |
| 48 | Colombo | Kalmunai | 48-17 | Colombo | Welikanda |
| 48-1 | Colombo | Batticaloa | 48-18 | Kaduruwela | Batticaloa |
| 48-1/962 | Batticaloa | Sungawila | 48-19 | Kaduruwela | Kaththankudi |
| 48-2 | Colombo | Diyasenpura | 48-20 | Colombo | Ambagaswewa |
| 48-3 | Colombo | Kaduruwela | 48-21 | Kaduruwela | Akkaraipattu |
| 48-4 | Colombo | Medirigiriya | 48-22 | Kurunegala | Diyasenpura |
| 48-5 | Colombo | Oddamavadi | 48-23 | Colombo | Meegaswewa |
| 48-6 | Colombo | Hingurakgoda | 48-24 | Kurunegala | Meegaswewa |
| 48-8 | Kurunegala | Kaduruwela | 48-25 | Kurunegala | Thuduwawa |
| 48-9 | Kurunegala | Hingurakgoda | 48-27 | Kurunegala | Welikanda |
| 48-11 | Kurunegala | Horiwila | 48-27/218 | Mahiyanganaya | Kurulubedda |
| 48-12 | Colombo | Akkaraipattu | 48-28 | Kurunegala | Nuwaragala |
| 48-12/962 | Akkaraipattu | Sungawila | 48-29 | Kaduruwela | Kalmunai |
| 48-13 | Colombo | Thirukkowil | 48/218 | Colombo | Dehiattakandiya |
| 48-14 | Colombo | Kaththankudi | 48/218-1 | Colombo | Siripura |
| 48-15 | Colombo | Sungawila | 48/525 | Chilaw | Maduruoya |
| 48-16 | Colombo | Maduruoya | 48/962 | Sungawila | Kalmunai |
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| Colombo - Trincomalee |
| 49 | Colombo | Trincomalee | 49/950 | Colombo | Muttur |
| 49-1 | Kurunegala | Trincomalee | 49/950-2 | Colombo | Seruwila |
| 49/866 | Colombo | Kinniya | | | |
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| Kandy - Hingurakgoda |
| 52-3 | Kandy | Hingurakgoda | 52-8 | Kandy | Diyasenpura |
| 52-3/996-2 | Kandy | Siyambalagashandiya | 52-13 | Kandy | Meegaswewa |
| 52-6 | Kandy | Ambagaswewa | 55/245 | Negombo | Nuwaragala |
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| Colombo - Anuradhapura |
| 57 | Colombo | Anuradhapura | 57-10 | Kurunegala | Medawachchiya |
| 57-1 | Colombo | Galgamuwa | 57-11 | Colombo | Janakapura |
| 57-2 | Kurunegala | Vavuniyava | 57-16 | Kurunegala | Wilachchiya |
| 57-5 | Kurunegala | Anuradhapura | 57-17 | Colombo | Kebithigollewa |
| 57-7 | Anuradhapura | Polgahawela | 57/978 | Colombo | Kalaoya |
| 57-9 | Kegalle | Anuradhapura | | | |
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| Colombo - Deniyaya |
| 60 | Colombo | Deniyaya |
| 60-1 | Colombo | Akuressa |
| 60-3 | Colombo | Deiyandara |
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| Aluthgama - Panadura - Badulla (64 ) |
| Via Horana, Bandaragama, Kiriella, Ratnapura, Pelmadulla, Balangoda and Bandarawela. |
| 64 | Panadura | Ketawatta | 64-3 | Panadura | Badulla |
| 64 | Aluthgama | Badulla | 64/98 | Panadura | Ampara |
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| Colombo - Rakwana |
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| Kandy - Rathnapura (69 - Via Kegalle and Avissawella) |
| The route goes through Kegalla, Galigamuwa, Kotiyakumbura and Karawanella. |
| 69 | Kandy | Rathnapura | 69-4 | Kandy | Awissawella |
| 69-1 | Kandy | Embilipitiya | 69/15-8 | Embilipitiya | Anuradhapura |
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| Anuradhapura - Ampara - Trincomalee |
| 75 | Anuradhapura | Ampara | 76-3 | Trincomalee | Ampara |
| 76 | Trincomalee | Akkaraipattu | 76-4 | Trincomalee | |
| 76-1 | Trincomalee | Kalmunai | 76/218/314 | Trincomalee | Badulla |
| 76-2 | Trincomalee | Batticaloa | | | |
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| Colombo - Nawalapitiya |
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| Colombo - Nuwaraeliya (79 - Via Peradeniya) |
| Via Peradeniya, Gampola and Pussellawa |
| 79 | Colombo | Nuwaraeliya |
| 79-1 | Colombo | Welimada |
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| Putlam - Batticaloa- Vavuniyava - Trincomalee - Akkaraipattu |
| 81/48 | Putlam | Batticaloa | 88-2 | Vavuniyava | Trincomalee |
| 86-1 | Vavuniyava | Batticaloa | 89 | Vavuniyava | Thirukkowil |
| 87-2 | Colombo | Vavuniyava | 89-1 | Vavuniyava | Akkaraipattu |
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| Colombo - Kuliyapitiya |
| 92-4 | Colombo | Kuliyapitiya |
| 92-5 | Kuliyapitiya | Negombo |
| 92/929 | Colombo | Kuliyapitiya |
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| Embilipitiya - Badulla |
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| Colombo - Akkaraipattu (98) |
| The route goes through Kaduwela, Hanwella, Avissawella Ratnapura, Pelmadulla and Monaragala. |
| 98 | Colombo | Akkaraipattu | 98-10 | Monaragala | Akkaraipattu |
| 98-1 | Colombo | Ampara | 98-11 | Colombo | Badalkumbura |
| 98-2 | Colombo | Monaragala | 98-13 | Colombo | Ampara |
| 98-3 | Colombo | Kalmunai | 98-14 | Colombo | Monaragala |
| 98-4 | Colombo | Pothuwil | 98-15 | Colombo | Wellawaya] |
| 98-5 | Colombo | Wellawaya] | 98/469 | Colombo | Kumbalgama |
| 98-6 | Colombo | Balangoda | 98/486-1 | Colombo | Welioya |
| 98-8 | Colombo | Panama | 98/488-4 | Colombo | Pinnawala |
| 98-9 | Monaragala | Kalmunai | | | |
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| Colombo - Badulla (99) |
| The route passes through Maharagama, Avissawella, Ratnapura, Pelmadulla, Balangoda, Beragala, Haputale, Diyatalawa and Bandarawela. |
| 99 | Colombo | Badulla | 99-10 | Colombo | Welimada |
| 99-2 | Colombo | Bandarawela | 99-10 | Colombo | Welimada - Bandarawela Via Gaswattha |
| 99-4 | Colombo | Balangoda | 99/469 | Colombo | Kumbalgama |
| 99-8 | Colombo | Passara | 99/488-4 | Colombo | Pinnawala |
| 99-9 | Colombo | Lunugala | 99-19 | Colombo | Gurutalawa - (Via) 6 Mile Post |
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| Colombo - Rathnapura (122 - Via High Level Road) |
| Via Nugegoda, Maharagama, Kottawa, Homagama, Godagama and Meepe. |
| 122 | Colombo | Rathnapura | 122/210-4 | Colombo | Angunukolapelessa |
| 122/210 | Colombo | Embilipitiya | 122/210-5 | Colombo | Sewanagala |
| 122/210-1 | Colombo | Suriyawewa | 122/210/211 | Colombo | Hambanthota |
| 122/210-2 | Colombo | Middeniya | 122/467 | Colombo | Rakwana |
| 122/210-3 | Colombo | Walasmulla | | | |
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