History of City Direct Services

Service 651

Operator	Route	Year	Date	Service changes
	Jurong West Ave 3 → Marina Blvd (AM) Central Blvd → Jurong West Ave 3 (PM) (2013 - Apr 2020)	2013	2 September	Introduced between Jurong West Ave 3 (Opp Blk 276B) and Marina Blvd (Marina Bay Financial Ctr) during morning peak hours and between Central Blvd (Aft Marina Stn Rd) and Jurong West Ave 3 (Blk 276B) during evening peak hours, operating 2 trips in each direction as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
			1 December	Serves new bus stop outside Downtown Stn along Central Blvd.
		2015	23 March	Serves new staggered bus stop outside Mapletree Anson along Anson Rd, skipping the bus stop outside Hub Synergy Pt.
		2016	3 October	Operations transferred to Rui Feng Chartered.
(Current)		2020	13 January	Operations transferred to Tower Transit Singapore.
				Designated wheelchair-accessible bus service (WAB).
	N/A		8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
			5 May	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 1 June 2020.
	Jurong West Ave 3 → Marina Blvd (AM) Central Blvd → Jurong West Ave 3 (PM) (since Jun 2020)		2 June	Resumed normal operations.

Service 652

Operator	Route	Year	Date	Service changes
	Upp Thomson Rd → Shenton Way (AM) Anson Rd → Upp Thomson Rd (PM) (2014 - Apr 2020)	2014	6 January	Introduced between Upp Thomson Rd (Opp Sembawang Hills FC) and Shenton Way (Opp MAS Bldg) during morning peak hours and between Anson Rd (Hub Synergy Pt) and Upp Thomson Rd (Bef Sembawang Hills FC) during evening peak hours, operating 2 trips in each direction as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
			17 March	3rd AM peak trip added.
			14 July	4th AM peak trip added.
		2015	19 January	5th AM peak trip added.
			23 March	Serves new staggered bus stop outside Mapletree Anson along Anson Rd, skipping the bus stop outside Hub Synergy Pt.
		2018	25 June	6th AM peak trip added.
		2020	6 January	Operations transferred to SMRT Buses.
				2 AM peak trips removed.
				Designated wheelchair-accessible bus service (WAB).
	N/A		8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
			5 May	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 1 June 2020.
	Upp Thomson Rd → Shenton Way (AM) Anson Rd → Upp Thomson Rd (PM) (since Jun 2020)		2 June	Resumed normal operations.
(Current)		2021	6 September	Operations transferred to SBS Transit.

Service 653

Operator	Route	Year	Date	Service changes
	Hume Ave → Marina Blvd (AM) Central Blvd → Hillview Ave (PM) (2014 - Apr 2020)	2014	13 January	Introduced between Hume Ave (Bef Summerhill) and Marina Blvd (Marina Bay Financial Ctr) during morning peak hours and between Central Blvd (Aft Marina Stn Rd) and Hillview Ave (Hillington Green Condo) during evening peak hours, operating 2 trips in each direction as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
			31 March	3rd AM peak trip added.
			4 August	4th AM peak trip added.
		2015	16 March	5th AM peak trip added.
			23 March	Serves new staggered bus stop outside Mapletree Anson along Anson Rd, skipping the bus stop outside Hub Synergy Pt.
			29 June	3rd PM peak trip added.
			26 October	6th AM peak trip added.
		2017	13 April	Operations transferred to SMRT Buses.
				2 AM peak trips and 1 PM peak trip removed.
				Designated wheelchair-accessible bus service (WAB).
	N/A	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
			5 May	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 1 June 2020.
	Hume Ave → Marina Blvd (AM) Central Blvd → Hillview Ave (PM) (since Jun 2020)		2 June	Resumed normal operations.
(Current)		2021	31 May	Operations transferred to Tower Transit Singapore.
		2024	15 April	5th AM peak trip added.

Service 654

Operator	Route	Year	Date	Service changes
	Anchorvale St → Shenton Way (AM) Anson Rd → Anchorvale St (PM) (2014 - Apr 2020)	2014	20 January	Introduced between Anchorvale St (Blk 336B) and Shenton Way (Opp MAS Bldg) during morning peak hours and between Anson Rd (Hub Synergy Pt) and Anchorvale St (Blk 330) during evening peak hours, operating 2 trips in each direction as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
			14 July	3rd AM peak trip added.
		2015	23 March	Serves new staggered bus stop outside Mapletree Anson along Anson Rd, skipping the bus stop outside Hub Synergy Pt.
			2 November	4th AM peak trip added.
		2016	13 June	5th AM peak trip added.
		2017	20 January	Operations transferred to BT & Tan Transport Service.
		2018	12 June	6th AM peak trip added. 3rd PM peak trip added.
(Current)		2019	22 July	Operations transferred to SBS Transit.
				Designated wheelchair-accessible bus service (WAB).
	N/A	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
			5 May	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 1 June 2020.
	Anchorvale St → Shenton Way (AM) Anson Rd → Anchorvale St (PM) (Jun 2020 - Nov 2024)		2 June	Resumed normal operations.
	Anchorvale Cres → Shenton Way (AM) Anson Rd → Anchorvale Cres (PM) (since Nov 2024)	2024	11 November	Extended to Anchorvale Cres under the LTA's Bus Connectivity Enhancement Programme (BCEP), with additional 2 morning trips and 1 evening trip.

Service 655

Operator	Route	Year	Date	Service changes
	West Coast Rd → Marina Blvd (AM) Central Blvd → West Coast Rd (PM) (2014 - Apr 2020)	2014	17 February	Introduced between West Coast Rd (Bet Blks 50/51) and Marina Blvd (Marina Bay Financial Ctr) during morning peak hours and between Central Blvd (Aft Marina Stn Rd) and West Coast Rd (Opp Blk 51) during evening peak hours, operating 2 trips in each direction as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
		2015	23 March	Serves new staggered bus stop outside Mapletree Anson along Anson Rd, skipping the bus stop outside Hub Synergy Pt.
(Current)		2017	17 April	Operations transferred to SBS Transit.
			21 August	Designated wheelchair-accessible bus service (WAB).
	N/A	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
			5 May	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 1 June 2020.
	West Coast Rd → Marina Blvd (AM) Central Blvd → West Coast Rd (PM) (since Jun 2020)		2 June	Resumed normal operations.
		2023	8 January	Amended to ply realigned Teban Gdns Rd with the permanent partial closure of Teban Gdns Rd to facilitate the construction of Pandan Reservoir MRT station on the Jurong Region MRT Line.
			9 October	3rd AM peak trip added.

Service 656

Operator	Route	Year	Date	Service changes
	Canberra Rd → Shenton Way (AM) Anson Rd → Canberra Rd (PM) (2014 - Apr 2020)	2014	17 February	Introduced between Canberra Rd (Blk 424A CP) and Shenton Way (Opp MAS Bldg) during morning peak hours and between Anson Rd (Hub Synergy Pt) and Canberra Rd (Blk 508 CP) during evening peak hours, operating 2 trips in each direction as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
			10 March	3rd AM peak trip added.
			14 July	4th AM peak trip added.
		2015	23 March	Serves new staggered bus stop outside Mapletree Anson along Anson Rd, skipping the bus stop outside Hub Synergy Pt.
		2017	17 April	Operations transferred to SMRT Buses.
				1 AM peak trip removed.
				Designated wheelchair-accessible bus service (WAB).
	N/A	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
			5 May	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 1 June 2020.
	Canberra Rd → Shenton Way (AM) Anson Rd → Canberra Rd (PM) (since Jun 2020)		2 June	Resumed normal operations.
				1 AM peak trip removed.
(Current)		2021	3 October	Operations transferred to Tower Transit Singapore.

Service 657

Operator	Route	Year	Date	Service changes
	Jurong West Ave 1 → Marina Blvd (AM) Central Blvd → West Coast Rd (PM) (2014 - Apr 2020)	2014	24 February	Introduced between Jurong West Ave 1 (Blk 538) and Marina Blvd (Marina Bay Financial Ctr) during morning peak hours and between Central Blvd (Aft Marina Stn Rd) and Jurong West Ave 1 (Blk 536) during evening peak hours, operating 2 trips in each direction as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
		2015	23 March	Serves new staggered bus stop outside Mapletree Anson along Anson Rd, skipping the bus stop outside Hub Synergy Pt.
		2017	24 April	Operations transferred to SMRT Buses.
				Designated wheelchair-accessible bus service (WAB).
	N/A	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
			5 May	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 1 June 2020.
	Jurong West Ave 1 → Marina Blvd (AM) Central Blvd → West Coast Rd (PM) (since Jun 2020)		2 June	Resumed normal operations.
(Current)		2021	31 May	Operations transferred to Tower Transit Singapore.

Service 658 (2014 - 2018)

Operator	Year	Date	Service changes
	2014	19 May	Introduced between Bedok Reservoir Rd (Blk 122) and Shenton Way (Opp MAS Bldg) during morning peak hours and between Anson Rd (Hub Synergy Pt) and Jln Damai (Opp Blk 668) during evening peak hours, operating 2 trips in each direction as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
	2015	23 March	Serves new staggered bus stop outside Mapletree Anson along Anson Rd, skipping the bus stop outside Hub Synergy Pt.
	2016	25 April	Amended to serve Jalan Tenaga instead of Jalan Damai due to reinstatement of Kaki Bt Ave 1.
	2018	17 December	Discontinued.

Service 659 (2014 - 2018)

Operator	Year	Date	Service changes
	2014	9 June	Introduced between Bedok Sth Rd (Opp Temasek JC) and Shenton Way (Opp MAS Bldg) during morning peak hours and between Anson Rd (Hub Synergy Pt) and Bedok Sth Rd (Temasek JC) during evening peak hours, operating 2 trips in each direction as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
	2015	19 January	3rd AM peak trip added.
		23 March	Serves new staggered bus stop outside Mapletree Anson along Anson Rd, skipping the bus stop outside Hub Synergy Pt.
	2018	17 December	Discontinued.

Service 660

Operator	Route	Year	Date	Service changes
	Buangkok Green → Shenton Way (AM) Anson Rd → Buangkok Green (PM) (2014 - Apr 2020)	2014	23 June	Introduced between Buangkok Green (Opp Blk 968) and Shenton Way (Opp MAS Bldg) during morning peak hours and between Anson Rd (Hub Synergy Pt) and Buangkok Green (Blk 969) during evening peak hours, operating 2 trips in each direction as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
			1 September	3rd AM peak trip added.
		2015	23 March	Serves new staggered bus stop outside Mapletree Anson along Anson Rd, skipping the bus stop outside Hub Synergy Pt.
			11 May	4th AM peak trip added.
		2018	25 June	5th AM peak trip added.
(Current)		2019	2 January	Operations transferred to SBS Transit.
				1 AM peak trip removed.
				Designated wheelchair-accessible bus service (WAB).
	N/A	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
			5 May	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 1 June 2020.
	Buangkok Green → Shenton Way (AM) Anson Rd → Buangkok Green (PM) (since Jun 2020)		2 June	Resumed normal operations.
		2023	11 September	5th AM peak trip added.
			26 December	6th and 7th AM peak trips added.

Service 660M

Operator	Route	Year	Date	Service changes
(Current)	Buangkok Crescent → Shenton Way (AM) Anson Rd → Buangkok Crescent (PM)	2024	11 November	Introduced between Buangkok Cres (Blk 991A) and Shenton Way (Opp MAS Bldg) during morning peak hours and between Anson Rd (Mapletree Anson) and Buangkok Cres (Opp Blk 991A) during evening peak hours, operating as a peak hour one-directional supplementary service on weekdays under the LTA's Bus Connectivity Enhancement Programme (BCEP). Wheelchair-accessible at launch.

Service 661

Operator	Route	Year	Date	Service changes
	Pasir Ris Dr 3 → Marina Blvd (AM) Central Blvd → Pasir Ris Dr 3 (PM) (2015 - Apr 2020)	2015	22 September	Introduced between Pasir Ris Dr 3 (Blk 479) and Marina Blvd (Marina Bay Financial Ctr) during morning peak hours and between Central Blvd (Marina Bay Stn) and Pasir Ris Dr 3 (Opp Blk 479) during evening peak hours, operating 2 trips in each direction as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
		2016	25 July	3rd AM peak trip added.
(Current)		2019	2 January	Operations transferred to Go-Ahead Singapore.
				1 AM peak trip removed.
				Designated wheelchair-accessible bus service (WAB).
	N/A	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
			5 May	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 1 June 2020.
	Pasir Ris Dr 3 → Marina Blvd (AM) Central Blvd → Pasir Ris Dr 3 (PM) (Jun 2020 - 2021)		2 June	Resumed normal operations.
	N/A	2021	15 September	Temporarily suspended due to the impact of COVID-19 on available manpower.
	Pasir Ris Dr 3 → Marina Blvd (AM) Central Blvd → Pasir Ris Dr 3 (PM) (since 2022)	2022	3 February	Resumed normal operations.

Service 662 (2015 - 2018)

Operator	Year	Date	Service changes
	2015	22 September	Introduced between Choa Chu Kang Nth 7 (Blk 619) and Marina Blvd (Marina Bay Financial Ctr) during morning peak hours and between Central Blvd (Marina Bay Stn) and Choa Chu Kang Nth 7 (Regent Gr Condo) during evening peak hours, operating 2 trips in each direction as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
	2018	17 December	Discontinued.

Service 663

Operator	Route	Year	Date	Service changes
	Yishun Ave 6 → Shenton Way (AM) Anson Rd → Yishun Ave 6 (PM) (2015 - Apr 2020)	2015	28 September	Introduced between Yishun Ave 6 (Bet Blks 405/406) and Shenton Way (Opp MAS Bldg) during morning peak hours and between Anson Rd (Mapletree Anson) and Yishun Ave 6 (Opp Blk 406) during evening peak hours, operating 4 trips in the morning and 2 trips in the evening as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
(Current)		2017	28 September	Operations transferred to Tower Transit Singapore.
				1 AM peak trip removed.
				Designated wheelchair-accessible bus service (WAB).
	N/A	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
			5 May	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 1 June 2020.
	Yishun Ave 6 → Shenton Way (AM) Anson Rd → Yishun Ave 6 (PM) (since Jun 2020)		2 June	Resumed normal operations.
		2021	26 April	Serves new bus stop outside Blk 382C along Yishun Ave 6.
		2022	26 September	Serves new bus stop opposite Blk 382C along Yishun Ave 6.
		2023	28 August	4th AM peak trip added.

Service 664 (2015 - 2018)

Operator	Year	Date	Service changes
	2015	6 October	Introduced between Tampines St 41 (Blk 417) and Marina Blvd (Marina Bay Financial Ctr) during morning peak hours and between Central Blvd (Marina Bay Stn) and Tampines St 41 (Blk 418) during evening peak hours, operating 2 trips in each direction as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
	2018	17 December	Discontinued.

Service 665

Operator	Route	Year	Date	Service changes
	Marsiling Dr → Shenton Way (AM) Anson Rd → Marsiling Dr (PM) (2015 - Apr 2020)	2015	12 October	Introduced between Marsiling Dr (Blk 32) and Shenton Way (Opp MAS Bldg) during morning peak hours and between Anson Rd (Mapletree Anson) and Marsiling Dr (Blk 203) during evening peak hours, operating 5 trips in the morning and 2 trips in the evening as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
		2016	4 January	6th AM peak trip added.
		2017	12 October	Operations transferred to Tower Transit Singapore.
				Designated wheelchair-accessible bus service (WAB).
	N/A	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
			5 May	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 1 June 2020.
	Marsiling Dr → Shenton Way (AM) Anson Rd → Marsiling Dr (PM) (since Jun 2020)		2 June	Resumed normal operations.
(Current)		2021	31 May	Operations transferred to SMRT Buses.
		2023	29 May	1 AM peak trip removed.

Service 666

Operator	Route	Year	Date	Service changes
	Punggol Dr → Marina Blvd (AM) Central Blvd → Punggol Dr (PM) (2016 - Apr 2020)	2016	29 February	Introduced between Punggol Dr (Opp Blk 612A) and Marina Blvd (Marina Bay Financial Ctr) during morning peak hours and between Central Blvd (Marina Bay Stn) and Punggol Dr (Blk 612A) during evening peak hours, operating 2 trips in each direction as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
(Current)		2020	2 March	Operations transferred to Go-Ahead Singapore.
				Designated wheelchair-accessible bus service (WAB).
	N/A		8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
			5 May	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 1 June 2020.
	Punggol Dr → Marina Blvd (AM) Central Blvd → Punggol Dr (PM) (Jun 2020 - 2021)		2 June	Resumed normal operations.
	N/A	2021	15 September	Temporarily suspended due to the impact of COVID-19 on available manpower.
	Punggol Dr → Marina Blvd (AM) Central Blvd → Punggol Dr (PM) (2022 - Nov 2024)	2022	3 February	Resumed normal operations.
	Punggol Dr → Raffles Blvd (AM) Temasek Blvd → Punggol Dr (PM) (since Nov 2024)	2024	25 November	To be extended to Raffles Blvd / Temasek Blvd via Bayfront Ave under the Bus Connectivity Enhancement Programme (BCEP), with additional 1 morning trip.

Service 667

Operator	Route	Year	Date	Service changes
	Clementi Ave 4 → Marina Blvd (AM) Central Blvd → Clementi Ave 4 (PM) (2016 - Apr 2020)	2016	8 March	Introduced between Clementi Ave 4 (Blk 308) and Marina Blvd (Marina Bay Financial Ctr) during morning peak hours and between Central Blvd (Marina Bay Stn) and Clementi Ave 4 (Blk 308) during evening peak hours, operating 2 trips in each direction as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
(Current)		2020	9 March	Operations transferred to SBS Transit.
				Designated wheelchair-accessible bus service (WAB).
	N/A		8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
			5 May	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 1 June 2020.
	Clementi Ave 4 → Marina Blvd (AM) Central Blvd → Clementi Ave 4 (PM) (since Jun 2020)		2 June	Resumed normal operations.

Service 668

Operator	Route	Year	Date	Service changes
	Ang Mo Kio Ave 5 → Marina Blvd (AM) Central Blvd → Ang Mo Kio Ave 5 (PM) (2016 - Apr 2020)	2016	15 March	Introduced between Ang Mo Kio Ave 5 (Opp Blk 649) and Marina Blvd (Marina Bay Financial Ctr) during morning peak hours and between Central Blvd (Marina Bay Stn) and Ang Mo Kio Ave 5 (Blk 649) during evening peak hours, operating 3 trips in the morning and 2 trips in the evening as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
		2018	25 June	4th AM peak trip added.
	N/A	2020	8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
			5 May	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 1 June 2020.
	Ang Mo Kio Ave 5 → Marina Blvd (AM) Central Blvd → Ang Mo Kio Ave 5 (PM) (since Jun 2020)		2 June	Resumed normal operations.
(Current)			14 December	Operations transferred to SBS Transit.
				Designated wheelchair-accessible bus service (WAB).

Service 669 (2016 - 2019)

Operator	Year	Date	Service changes
	2016	22 March	Introduced between Bedok Nth Rd (Bedok Nth Stn Exit A) and Marina Blvd (Marina Bay Financial Ctr) during morning peak hours and between Central Blvd (Marina Bay Stn) and Bedok Nth Rd (Bet Blks 705/706) during evening peak hours, operating 2 trips in each direction as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
	2019	3 June	Discontinued.

Service 670

Operator	Route	Year	Date	Service changes
	Yishun Ave 7 → Marina Blvd (AM) Central Blvd → Yishun Ave 7 (PM) (2016 - Apr 2020)	2016	29 March	Introduced between Yishun Ave 7 (Opp Blk 288) and Marina Blvd (Marina Bay Financial Ctr) during morning peak hours and between Central Blvd (Marina Bay Stn) and Yishun Ave 7 (Blk 289) during evening peak hours, operating 3 trips in the morning and 2 trips in the evening as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
		2020	30 March	Operations transferred to SMRT Buses.
				1 AM peak trip removed.
				Designated wheelchair-accessible bus service (WAB).
	N/A		8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
			5 May	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 1 June 2020.
	Yishun Ave 7 → Marina Blvd (AM) Central Blvd → Yishun Ave 7 (PM) (since Jun 2020)		2 June	Resumed normal operations.
(Current)		2021	5 September	Operations transferred to Tower Transit Singapore.

Service 671

Operator	Route	Year	Date	Service changes
	Punggol Rd → Marina Blvd (AM) Central Blvd → Punggol Rd (PM) (2016 - Apr 2020)	2016	17 October	Introduced between Punggol Rd (Opp The Rivervale) and Marina Blvd (Marina Bay Financial Ctr) during morning peak hours and between Central Blvd (Marina Bay Stn) and Punggol Rd (The Rivervale) during evening peak hours, operating 2 trips in each direction as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
		2018	25 June	3rd AM peak trip added.
(Current)		2020	13 January	Operations transferred to SBS Transit.
				1 AM peak trip removed.
				Designated wheelchair-accessible bus service (WAB).
	N/A		8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
			5 May	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 1 June 2020.
	Punggol Rd → Marina Blvd (AM) Central Blvd → Punggol Rd (PM) (Jun 2020 - Nov 2024)		2 June	Resumed normal operations.
		2021	12 April	Serves additional pair of bus stops before and after Jln Kayu along Sengkang West Ave.
		2023	27 March	3rd AM peak trip added.
		2024	27 May	4th and 5th AM peak trips added. 3rd and 4th PM peak trips added.
	Punggol Rd → Raffles Blvd (AM) Temasek Blvd → Punggol Rd (PM) (since Nov 2024)		11 November	Extended to Raffles Blvd / Temasek Blvd via Bayfront Ave under the Bus Connectivity Enhancement Programme (BCEP).

Service 672

Operator	Route	Year	Date	Service changes
	Hougang St 51 → Marina Blvd (AM) Central Blvd → Hougang St 51 (PM) (2016 - Apr 2020)	2016	7 November	Introduced between Hougang St 51 (Blk 568) and Marina Blvd (Marina Bay Financial Ctr) during morning peak hours and between Central Blvd (Marina Bay Stn) and Hougang St 51 (Blk 574) during evening peak hours, operating 2 trips in each direction as a peak hour one-directional service on weekdays under the LTA's Bus Service Enhancement Programme (BSEP).
		2018	25 June	3rd AM peak trip added.
(Current)		2020	13 January	Operations transferred to SBS Transit.
				1 AM peak trip removed.
				Designated wheelchair-accessible bus service (WAB).
	N/A		8 April	Temporarily suspended due to COVID-19 Circuit Breaker measures in Singapore until 4 May 2020.
			5 May	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 1 June 2020.
	Hougang St 51 → Marina Blvd (AM) Central Blvd → Hougang St 51 (PM) (Jun 2020 - Nov 2024)		2 June	Resumed normal operations.
		2024	27 May	3rd and 4th AM peak trips added. 3rd PM peak trip added.
	Hougang St 51 → Raffles Blvd (AM) Temasek Blvd → Hougang St 51 (PM) (since Nov 2024)		11 November	Extended to Raffles Blvd / Temasek Blvd via Bayfront Ave under the Bus Connectivity Enhancement Programme (BCEP).

Service 673

Operator	Route	Year	Date	Service changes
(Current)	Punggol Way → Temasek Blvd (AM) Temasek Blvd → Punggol Way (PM) (since Oct 2024)	2024	14 October	Introduced between Punggol Way (Aft Punggol Pt Stn) and Temasek Blvd (Suntec Twr Two) during morning peak hours and between Temasek Blvd (Suntec Twr Three) and Punggol Way (Bef Punggol Pt Stn) during evening peak hours, operating as a peak hour one-directional service on weekdays under the LTA's Bus Connectivity Enhancement Programme (BCEP). Wheelchair-accessible at launch.

Service 674

Operator	Route	Year	Date	Service changes
(Current)	Tengah Drive → Marina Blvd (AM) Central Blvd → Tengah Drive (PM) (since Nov 2024)	2024	25 November	To be introduced between Tengah Drive (Blk 238) and Marina Blvd (Marina Bay Financial Ctr) during morning peak hours and between Central Blvd (Marina Bay Stn) and Tengah Drive (Blk 324B) during evening peak hours, operating as a peak hour one-directional service on weekdays under the LTA's Bus Connectivity Enhancement Programme (BCEP). Wheelchair-accessible at launch.