Jalan Sultan Ismail Petra, Federal Route 259 (formerly Kelantan State Route D28), is a federal road in Kelantan, Malaysia. The roads connected Batang Merbau in the west to Tanah Merah in the east.^[1] It was named after the 28th Sultan of Kelantan, Sultan Ismail Petra, who reigned from 1979 to 2010.

The kilometre zero of the Federal Route 259 is located at Batang Merbau.

In 2014, the highway was gazetted as Federal Route 259.

At most sections, the Federal Route 259 was built under the JKR R5 road standard, allowing maximum speed limit of up to 90 km/h.

Km	Exit	Junctions	To	Remarks
FT 259 0		Batang Merbau	West FT 4 AH140 Gerik FT 4 AH140 Jeli Southeast FT 4 AH140 Machang FT 3 AH18 Besut FT 3 AH18 Kuala Terengganu	T-junctions
		Kelewek
		Jalan Sri Kelewek	South D193 Jalan Sri Kelewek Sri Kelewek	T-junctions
		Sungai Jegor bridge
		Taman Manal Jaya 1
		Taman Manal Jaya 2
		TNB's Tanah Merah Substations
		Kampung Banggol Tok Ajar	North FT 261 Bukit Mas FT 261 Pasir Mas	T-junctions
		Tanah Merah Taman Maju Setapak
		Tanah Merah Taman Wira
		Tanah Merah Jalan Klinik	South Jalan Klinik	T-junctions
		Masjid Daerah Tanah Merah (Mosque)
		Railway level crossing
		Tanah Merah	North FT 129 Jalan Pasir Mas FT 129 Pasir Mas FT 3 AH18 Tumpat FT 3 AH18 Rantau Panjang 4056 AH18 Sungai Golok (Thailand) East Jalan Hospital Tanah Merah District (Jajahan) and Land Office Majlis Daerah Tanah Merah (MDTM) headquarters Tanah Merah District Police Headquarters Hospital Daerah Tanah Merah South FT 129 Jalan Tasek FT 4 AH140 Machang FT 3 AH18 Besut FT 3 AH18 Kuala Terengganu	T-junctions