# Malaysia Federal Route 1 (Sabah)

The Sabah section of the Federal Route 1, Asian Highway Route AH150, is a 428-km federal highway in Sabah, Malaysia, which is also a component of the larger Pan Borneo Highway network. The route was formed in 1996 during the merging of two former routes A1 (northern route, from Kota Kinabalu to Kudat) and A2 (southern route, from Kota Kinabalu to Sindumin near the Sabah-Sarawak border). The merging of the former routes formed an alternate route of Route 1 within the city of Kota Kinabalu. However, most maps still use the older route numbering scheme by referring to the northern section as A1 and the southern section as A2.
Generally, the highway runs along the west coast of Sabah. The highway continues as the Federal Route 1 (Sarawak) at the Sabah-Sarawak border.
One interesting feature about this federal highway is motorists crossing the Sabah-Sarawak border through the Federal Route 1 must pass through a customs and immigration checkpoint at Sindumin, even though the two neighbouring states are part of the federation of Malaysia.

## List of interchanges
### Northern route (former A1 section)

| Interchange | To | Remarks |
| Kudat | Kudat town centre Kudat airport | Roundabout |
| Bandar Sikuati Baru | | |
| Langkon | South Sapi-Nangoh Highway Kota Marudu Sungai Sungai Dalit Sandakan | T-junction |
| Kg. Jawi Jawi | | |
| Kota Belud | East Jalan Kota Belud-Ranau Kota Belud FT 22 Kundasang FT 22 Ranau | Roundabout |
| Tenghilan | | |
| Sungai Tuaran bridge | | |
| Tuaran | Northeast FT 503 Jalan Berungis-Tuaran Tuaran town centre | Roundabout |
| Tamparuli Berungis Roundabout | East FT 22 Tamparuli-Ranau Highway Tamparuli Ranau Sandakan | Roundabout Start/end of dual-carriageway |
| Telipok | | |
| Jalan Sepanggar junction | FT 1 Jalan Sepanggar Likas Universiti Malaysia Sabah Kota Kinabalu city centre | Signalised intersection |
| Inanam | | |
| Kota Kinabalu Jalan Penampang | FT 501 Jalan Penampang Kota Kinabalu city centre Penampang Donggongon Lok Kawi | Signalised intersection |
| Kota Kinabalu Jalan Pintas Penampang | FT 500 Penampang Bypass Kota Kinabalu city centre Donggongon Tambunan Keningau | Signalised intersection |
| Tanjung Aru Kota Kinabalu International Airport | FT 1 Jalan Kepayan Kota Kinabalu city centre Beaufort Sindumin | Signalised T-junction |

### Southern route (former A2 section)

| Km | Interchange | To | Remarks |
| | Sepanggar-Tanjung Aru | see also Jalan Tun Fuad Stephens | |
| | Tanjung Aru Kota Kinabalu International Airport | FT 1 Tuaran Bypass Kota Belud Tuaran | Signalised T-junction |
| | Putatan | | |
| | Sabindo Intersection | South Papar Spur Road Papar Melinsung | Signalised T-junction |
| | Lok Kawi | North FT 501 Jalan Penampang Penampang Kota Kinabalu city centre | Signalised T-junction End/start of dual-carriageway |
| | Kinarut Spur Road | Kinarut town centre | |
| | Jalan Kawang | Kawang town centre | |
| | Sungai Papar bridge | | |
| | Papar Spur Roundabout | North Papar Spur Road Papar town centre South Jalan Bongawan Estate Bongawan Bongawan Estate | Roundabout |
| | Kimanis | East Kimanis-Keningau Highway Crocker Range National Park Keningau | Roundabout |
| | Bongawan Roundabout | West Bongawan town centre East Bongawan Estate Papar | Roundabout |
| | Membakut | | |
| | Beaufort | West FT 502 Federal Route 502 Kuala Penyu Menumbok Labuan (via ferry) | T-junction |
| | Sungai Padas bridge Beaufort Bridge | | |
| | Kg. Lingkungan | West Jalan Weston Weston | T-junction |
| | Mesapol | | |
| | Sipitang | Sipitang town centre | Junctions |
| | Sabah Forest Industries | | |
| | Mengalong | East SA3 Jalan Tenom-Sipitang Tenom Keningau | Roundabout |
| | Sindumin | Sindumin town centre | Roundabout |
| | Sindumin Checkpoint | Custom Complex | |
| Sindumin Checkpoint Customs |||||
| Sabah West Coast Division Sipitang district border |||||
| Sabah-Sarawak border |||||
| Sarawak Limbang Division Lawas district border |||||
| | | Southwest FT 1 Federal Route 1 (Sarawak) Lawas Temburong Limbang Bandar Seri Begawan Miri Bintulu Sibu Kuching | |