History of Premium Services

Service 521 (2019-TBC)

Operator	Year	Date	Service changes
RushOwl	2019	4 May	Introduced between Tanah Merah Ferry Terminal and River Valley Rd (Loop), operating nine trips on Saturdays, sundays and public holidays.
	TBC	TBC	Withdrawn.

Service 522 (TBC-2022)

Operator	Year	Date	Service changes
ComfortDelgro Bus	TBC	TBC	Introduced between Flora Rd and Nicoll Highway as a one-way Weekday Morning Service
	2022	1 Oct	Withdrawn.

Service 523 (TBC-2023)

Operator	Year	Date	Service changes
ComfortDelgro Bus	TBC	TBC	Introduced between Bedok Reservoir Rd and Suntec City as a one-way Weekday Morning Service
	2023	22 Sep	Withdrawn.

Service 524 (TBC-TBC)

Operator	Year	Date	Service changes
ComfortDelgro Bus	TBC	TBC	Introduced between Bukit Batok East Ave 6 and Nicoll Highway as a one-way Weekday Morning Service
	TBC	TBC	Withdrawn.

Service 525 (TBC-TBC)

Operator	Year	Date	Service changes
ComfortDelgro Bus	TBC	TBC	Introduced between Hillview Avenue and Temasek Boulevard as a one-way Weekday Morning Service
	TBC	TBC	Withdrawn.

Service 525 (2020 - Present)

Operator	Year	Date	Service changes
DeConti Trans	2020	3 Feb	Introduced between Buangkok Cres and Marina Blvd as a one-way Weekday Morning Service
	2020	8 Apr	Suspended due to 2020 Covid-19 Circuit Breaker Measures
	2021	1 Oct	Reinstated.

Service 526 (TBC-2023)

Operator	Year	Date	Service changes
ComfortDelgro Bus	TBC	TBC	Introduced between Hougang Avenue 1 and Upper Cross St as a one-way Weekday Morning Service
	2023	1 Oct	Withdrawn.

Service 527 (TBC-2023)

Operator	Year	Date	Service changes
F1 Transport	TBC	TBC	Introduced between Rhu Cross and Stadium Crescent as a one-way Weekday Morning Service
	2023	1 July	Withdrawn.

Service 528 (2021 - 2022)

Operator	Year	Date	Service changes
Ren Quan Transport	2021	TBC	Introduced between Yishun Avenue 2 and West Camp Road as a peak hour one-directional premium service during weekday mornings & evenings
	2022	1 Jan	Withdrawn.

Lentor Estate Service/Service 529 (2007 - 2017)

Operator	Year	Date	Service changes
	2007	26 May	Introduced between Yio Chu Kang Ter and Lentor Loop (Loop), plying the same route as Service 825 during Saturday afternoons and evenings.
	2009	1 June	Re-numbered to Service 529.
	2017	7 January	Discontinued.

Service 530 (2007 - 2021)

Operator	Year	Date	Service changes
	2007	30 July	Introduced between River Valley Rd and Shenton Way as a peak hour one-directional service during weekday mornings.
EML Transport Service	2016	29 August	Operations transferred to EML Transport Service and extended to start from Tiong Bahru Rd (Redhill Stn).
	2018	TBC	Shortened back to start from River Valley Rd.
	2021	TBC	Discontinued.

Service 531

Operator	Year	Date	Service changes
	2007	30 July	Introduced between Simei Rd and Shenton Way as a peak hour one-directional service during weekday mornings.
	2008	23 June	Extended to operate between Anson Rd and Simei Rd during weekday evenings.
	2016	29 August	Operations transferred to Commute Solutions Group.
	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 July 2020.
		1 July	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until January/February 2021.
Ng Ing Tsair Bus Service (Current)	2021	4 January	Operations transferred to Ng Ing Tsair Bus Service.
		1 February	AM peak route resumed normal operations.

Service 532 (2007 - 2018)

Operator	Year	Date	Service changes
	2007	16 July	Introduced between Clementi Ave 4 and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2010	20 September	2nd AM peak trip added at 0750 hrs.
	2014	11 August	Operations transferred to Commute Solutions LLP and extended to terminate at Temasek Blvd.
	2018	1 November	Discontinued.

Service 533 (2007 - 2022)

Operator	Year	Date	Service changes
	2007	16 July	Introduced between Teban Gdns Rd and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2010	2 August	2nd AM peak trip added at 0735 hrs.
	2016	27 June	Designated wheelchair-accessible bus service (WAB).
		15 August	Operations transferred to Aedge Holdings and extended to terminate at Beach Rd.
	2022	1 January	Discontinued.

Service 534 (2007 - 2022)

Operator	Year	Date	Service changes
	2007	16 July	Introduced between Yio Chu Kang Rd and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2016	27 June	Designated wheelchair-accessible bus service (WAB).
City Bus Services		29 August	Operations transferred to City Bus Services, serving an additional bus stop opposite Maritime Hse along Cantonment Rd.
	2017	TBC	Extended to start from Serangoon Nth Ave 5.
	2022	1 January	Discontinued.

Service 535 (2007 - 2016)

Operator	Year	Date	Service changes
	2007	16 July	Introduced between Lor 8 Toa Payoh and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2016	27 June	Designated wheelchair-accessible bus service (WAB).
		28 November	Discontinued.

Service 536 (2007 - 2016)

Operator	Year	Date	Service changes
	2007	16 July	Introduced between Jurong West St 91 and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2016	27 June	Designated wheelchair-accessible bus service (WAB).
		15 August	Operations transferred to Aedge Holdings, extended to start from Jurong West Ave 3 and terminating at Beach Rd.
		19 December	Discontinued.

Service 537 (2007 - 2008)

Operator	Year	Date	Service changes
	2007	16 July	Introduced between Jurong West Ave 5 and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2008	15 June	Serves new bus stop outside Blk 678D along Jurong West St 64.
		21 July	Discontinued.

Service 538 (2007 - 2022)

Operator	Year	Date	Service changes
	2007	16 July	Introduced between Pasir Ris Dr 3 and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2012	19 March	2nd AM peak trip added at 0735 hrs.
		29 April	Serves new bus stop outside Blk 612 along Pasir Ris Dr 1.
	2013	30 December	Amended to ply MCE with the partial closure of ECP.
	2014	28 September	Amended to ply Maxwell Rd, skipping Prince Edward Rd with the road changes in the Marina Sth area.
	2016	27 June	Designated wheelchair-accessible bus service (WAB).
		29 August	Operations transferred to Aedge Holdings.
	2022	1 January	Discontinued.

Service 539 (2007 - 2023)

Operator	Year	Date	Service changes
	2007	16 July	Introduced between Pasir Ris Dr 4 and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2011	25 April	2nd AM peak trip added at 0735 hrs.
	2013	30 December	Amended to ply MCE with the partial closure of ECP.
	2014	28 September	Amended to ply Maxwell Rd, skipping Prince Edward Rd with the road changes in the Marina Sth area.
	2016	27 June	Designated wheelchair-accessible bus service (WAB).
		26 September	Operations transferred to Commute Solutions Group and extended to terminate at Temasek Blvd.
	2017	3 January	Extended to start from Pasir Ris Dr 3.
	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 July 2020.
		1 July	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until further notice.
Ng Ing Tsair Bus Service	2021	4 January	Operations transferred to Ng Ing Tsair Bus Service.
	2022	1 July	Resumed normal operations.
	2023	22 December	Discontinued.

Service 540 (2007 - 2008)

Operator	Year	Date	Service changes
	2007	16 July	Introduced between Yuan Ching Rd and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2008	21 July	Discontinued.

Service 542 (2007 - 2022)

Operator	Year	Date	Service changes
	2007	16 July	Introduced between Jurong West Ave 1 and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2016	22 February	Operations transferred to Aedge Holdings, extended to start from Yung Ho Rd and terminate at Nicoll Highway with evening peak trips introduced between Nicoll Highway and Yung Ho Rd.
		8 August	Evening peak trips discontinued.
	2022	1 January	Discontinued.

Service 543 (2007 - 2022)

Operator	Year	Date	Service changes
	2007	16 July	Introduced between Jurong East Ave 1 and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2011	28 November	2nd AM peak trip added at 0750 hrs.
	2016	29 February	Operations transferred to Aedge Holdings, extended to terminate at Beach Rd with evening peak trips introduced between Beach Rd and Jln Boon Lay.
		8 August	Evening peak trips discontinued.
	2022	1 January	Discontinued.

Service 544 (2007 - 2018)

Operator	Year	Date	Service changes
	2007	16 July	Introduced between Bedok Nth Rd and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2012	19 March	2nd AM peak trip added at 0750 hrs.
	2013	30 December	Amended to ply MCE with the partial closure of ECP.
	2014	28 September	Amended to ply Maxwell Rd, skipping Prince Edward Rd with the road changes in the Marina Sth area.
	2016	27 June	Designated wheelchair-accessible bus service (WAB).
	2017	3 January	Operations transferred to Commute Solutions Group and extended to terminate at Nicoll Highway.
	2018	9 July	Discontinued.

Service 545

Operator	Year	Date	Service changes
	2007	16 July	Introduced between Bedok Nth Ave 4 and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2011	31 October	2nd AM peak trip added at 0750 hrs.
	2013	30 December	Amended to ply MCE with the partial closure of ECP.
	2014	28 September	Amended to ply Maxwell Rd, skipping Prince Edward Rd with the road changes in the Marina Sth area.
	2016	27 June	Designated wheelchair-accessible bus service (WAB).
APT Travel (Current)	2017	3 January	Operations transferred to APT Travel.

Service 546 (2008 - 2016)

Operator	Year	Date	Service changes
	2008	4 April	Introduced between Geylang Bahru and Shenton Way as a peak hour one-directional service during weekday mornings.
	2016	29 August	Discontinued.

Service 548 (2008 - 2022)

Operator	Year	Date	Service changes
	2008	25 February	Introduced between Ang Mo Kio Ave 5 and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2010	19 April	2nd AM peak trip added at 0750 hrs.
	2011	19 December	3rd and 4th AM peak trips added at 0745 hrs and 0755 hrs.
	2015	13 July	Operations transferred to Aedge Holdings with evening peak trips introduced between Collyer Quay and Ang Mo Kio Ave 5.
	2016	8 August	Evening peak trips withdrawn.
	2022	1 January	Discontinued.

Service 549 (2008 - 2021)

Operator	Year	Date	Service changes
	2008	25 February	Introduced between Ang Mo Kio St 61 and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2010	17 February	2nd AM peak trip added at 0750 hrs.
		20 September	3rd AM peak trip added at 0755 hrs.
	2011	17 January	Amended to ply Ang Mo Kio Ave 3 with the introduction of Premium Service 761.
			1 AM peak trip removed.
	2016	27 June	Designated wheelchair-accessible bus service (WAB).
		3 October	Operations transferred to Commute Solutions Group and extended to terminate at Temasek Blvd.
	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 July 2020.
		1 July	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 31 December 2020.
	2021	4 January	Discontinued.

Service 550

Operator	Year	Date	Service changes
	2008	25 February	Introduced between Rivervale Dr and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2011	27 September	2nd AM peak trip added at 0730 hrs.
City Bus Services (Current)	2015	13 July	Operations transferred to City Bus Services and shortened to start from Sengkang East Ave.
	2018	9 April	Amended to ply Punggol Rd, Sengkang East Way, Sengkang West Way and Fernvale Rd, skipping Sengkang East Ave and Sengkang West Ave.
	2023	3 January	Extended to start from Sumang Wk.

Service 552 (2008 - 2018)

Operator	Year	Date	Service changes
	2008	21 April	Introduced between Tampines St 45 and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2013	30 December	Amended to ply MCE with the partial closure of ECP.
	2014	28 September	Amended to ply Maxwell Rd, skipping Prince Edward Rd with the road changes in the Marina Sth area.
	2016	28 March	Designated wheelchair-accessible bus service (WAB).
	2017	3 January	Operations transferred to Commute Solutions Group and extended to terminate at Nicoll Highway.
		11 December	Discontinued.

Service 553 (2008 - 2021)

Operator	Year	Date	Service changes
	2008	21 April	Introduced between Tampines Ave 9 and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2013	30 December	Amended to ply MCE with the partial closure of ECP.
	2014	28 September	Amended to ply Maxwell Rd, skipping Prince Edward Rd with the road changes in the Marina Sth area.
	2016	28 March	Designated wheelchair-accessible bus service (WAB).
APT Travel	2017	3 January	Operations transferred to APT Travel.
	2018	TBC	Extended to start from Tampines Ave 9 (Opp Blk 721).
	2021	TBC	Discontinued.

Service 554 (2008 - 2019)

Operator	Year	Date	Service changes
	2008	21 April	Introduced between Tampines Ave 4 and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2010	20 September	2nd AM peak trip added at 0735 hrs.
	2013	30 December	Amended to ply MCE with the partial closure of ECP.
	2014	28 September	Amended to ply Maxwell Rd, skipping Prince Edward Rd with the road changes in the Marina Sth area.
	2016	28 March	Designated wheelchair-accessible bus service (WAB).
Tan Bus Transport		29 August	Operations transferred to Tan Bus Transport.
	2019	31 July	Discontinued.

Service 555 (2008 - 2017)

Operator	Year	Date	Service changes
	2008	25 February	Introduced between Bt Panjang Ring Rd and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2016	27 June	Designated wheelchair-accessible bus service (WAB).
	2017	3 April	Discontinued.

Service 556 (2008 - 2016)

Operator	Year	Date	Service changes
	2008	25 February	Introduced between Choa Chu Kang Nth 7 and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2014	15 September	Operations transferred to Commute Solutions LLP and extended to terminate at Temasek Blvd.
	2016	20 June	Discontinued.

Service 557 (2008 - 2021)

Operator	Year	Date	Service changes
	2008	25 February	Introduced between Choa Chu Kang Ave 3 and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2014	15 September	Operations transferred to Commute Solutions LLP and extended to terminate at Temasek Blvd.
	2016	22 September	Amended to start from Choa Chu Kang Dr and ply Choa Chu Kang Ave 5, Choa Chu Kang Ave 6, Choa Chu Kang Ave 1 and Choa Chu Kang Ave 7, skipping Teck Whye Ave.
	2018	TBC	Amended to ply Bt Batok Rd.
	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 July 2020.
		1 July	Resumed normal operations.
	2021	4 January	Discontinued.

Service 558 (2008 - 2016)

Operator	Year	Date	Service changes
	2008	21 April	Introduced between Yishun Ring Rd and Fullerton Rd as a peak hour one-directional service during weekday mornings.
		29 August	Serves additional bus stop outside Blk 774 along Yishun Ring Rd.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2014	25 August	Operations transferred to Commute Solutions LLP and extended to terminate at Temasek Blvd.
	2016	3 May	Discontinued.

Service 559 (2008 - 2022)

Operator	Year	Date	Service changes
	2008	21 April	Introduced between Yishun Ave 11 and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2011	11 April	2nd AM peak trip added at 0735 hrs.
	2014	1 September	Operations transferred to Commute Solutions LLP, extended to terminate at Temasek Blvd and serves 2 additional bus stops outside Yishun Sports Hall along Yishun Ave 2 and outside Outram Pk Stn along Outram Rd.
	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 July 2020.
		1 July	Resumed normal operations.
3S Transport	2021	4 January	Operations transferred to 3S Transport.
	2022	1 January	Discontinued.

Service 560

Operator	Year	Date	Service changes
	2008	30 June	Introduced between Pandan Valley and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2011	27 December	2nd AM peak trip added at 0745 hrs.
	2015	8 June	3rd AM peak trip added.
	2016	27 June	Designated wheelchair-accessible bus service (WAB).
		26 September	Operations transferred to Commute Solutions Group and extended to terminate at Temasek Blvd.
	2018	TBC	Serves 3 additional bus stops opposite Blk 343, opposite Blk 352 and after Dover Rd along Clementi Rd.
	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 July 2020.
		1 July	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until February 2021.
Diamond Coach Singapore (Current)	2021	4 January	Operations transferred to Diamond Coach Singapore.
		1 December	Resumed normal operations.

Service 561 (2008 - 2016)

Operator	Year	Date	Service changes
	2008	30 June	Introduced between Upp Aljunied Rd and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2016	27 June	Designated wheelchair-accessible bus service (WAB).
		14 November	Discontinued.

Service 563 (2008 - 2016)

Operator	Year	Date	Service changes
	2008	30 June	Introduced between Bt Timah Rd and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2016	27 June	Designated wheelchair-accessible bus service (WAB).
		29 August	Discontinued.

Service 564 (2008 - 2017)

Operator	Year	Date	Service changes
	2008	30 June	Introduced between Farrer Rd and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2015	16 April	2nd AM peak trip added.
	2016	27 June	Designated wheelchair-accessible bus service (WAB).
		15 August	Operations transferred to Commute Solutions LLP and extended to terminate at Temasek Blvd.
	2017	11 September	Discontinued.

Service 565

Operator	Year	Date	Service changes
	2008	30 June	Introduced between Ah Hood Rd and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2016	28 March	Designated wheelchair-accessible bus service (WAB).
City Transit (Current)		29 August	Operations transferred to City Transit, serving an additional bus stop opposite Maritime Hse along Cantonment Rd.
	2022	TBC	Amended to ply Jln Tenteram, skipping a portion of Jln Bahagia.
	2023	TBC	Shortened to terminate at Phillip St (outside Tan Ean Kiam Bldg).

Service 566 (2008 - 2022)

Operator	Year	Date	Service changes
	2008	30 June	Introduced between Meyer Rd and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2013	30 December	Amended to ply MCE with the partial closure of ECP.
	2014	4 August	Operations transferred to Commute Solutions LLP and extended to terminate at Marina Blvd.
		28 September	Amended to ply Maxwell Rd, skipping Prince Edward Rd with the road changes in the Marina Sth area.
	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 July 2020.
		1 July	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until further notice.
	2021	4 January	Operations transferred to BT & Tan Transport.
	2022	1 January	Discontinued.

Service 569 (2008 - 2022)

Operator	Year	Date	Service changes
	2008	25 February	Introduced between Punggol Ctrl and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2009	5 October	Amended to ply Cecil St, skipping Robinson Rd.
	2016	18 January	Operations transferred to Aedge Holdings, extended to start from Punggol Dr and terminate at Nicoll Highway.
	2022	1 January	Discontinued.

Service 585 (2008 - 2018)

Operator	Year	Date	Service changes
	2008	21 April	Introduced between Bedok Reservoir Rd and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2011	28 August	Amended to ply Jln Damai and Bedok Reservoir Rd with the partial closure of Kaki Bt Ave 1 to facilitate the construction of Kaki Bt MRT station on the Downtown MRT Line.
	2012	25 June	2nd AM peak trip added at 0750 hrs.
	2013	30 December	Amended to ply MCE with the partial closure of ECP.
	2014	28 September	Amended to ply Maxwell Rd, skipping Prince Edward Rd with the road changes in the Marina Sth area.
	2016	28 March	Designated wheelchair-accessible bus service (WAB).
		24 April	Amended to ply the reinstated Kaki Bt Ave 1 and Jln Tenaga, skipping Jln Damai and Bedok Reservoir Rd.
	2017	3 January	Operations transferred to Commute Solutions Group and extended to terminate at Temasek Blvd.
	2018	15 June	Discontinued.

Service 586 (2008 - 2009)

Operator	Year	Date	Service changes
	2008	8 September	Introduced between Bt Panjang Ring Rd and Jurong East Int as a peak hour one-directional service during weekday mornings.
	2009	9 February	Discontinued.

Service 587 (2008 - 2016)

Operator	Year	Date	Service changes
	2008	30 June	Introduced between Woodlands Ring Rd and Shenton Way as a peak hour one-directional service during weekday mornings.
		20 October	Amended to ply Woodlands Ave 6.
	2016	28 November	Discontinued.

Service 588 (2008 - 2021)

Operator	Year	Date	Service changes
	2008	30 June	Introduced between Sin Ming Ave and Shenton Way as a peak hour one-directional service during weekday mornings.
	2016	29 August	Operations transferred to Commute Solutions Group.
	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 July 2020.
		1 July	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 31 December 2020.
	2021	4 January	Discontinued.

Service 589 (2008 - 2017)

Operator	Year	Date	Service changes
	2008	8 September	Introduced between Sunset Way and Fullerton Rd as a peak hour one-directional service during weekday mornings.
	2012	TBC	Serves new bus stop near LP 36 along Sunset Way.
	2017	1 March	Discontinued.

Service 590 (2008 - 2021)

Operator	Year	Date	Service changes
	2008	8 September	Introduced between Choa Chu Kang Cres and Shenton Way as a peak hour one-directional service during weekday mornings.
	2012	6 August	2nd AM peak trip added at 0740 hrs.
	2017	3 January	Operations transferred to Commute Solutions Group.
	2018	TBC	Extended to start from the bus stop outside Blk 681 along Choa Chu Kang Cres.
	2019	16 August	Amended to ply Brickland Rd and Bt Batok Rd, skipping Choa Chu Kang Nth 6 and Choa Chu Kang Nth 5.
	2020	2 January	Shortened to start from Brickland Rd and amended to ply Bt Batok West Ave 8, Bt Batok West Ave 3 and Bt Batok West Ave 6.
		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 July 2020.
		1 July	Temporary suspension of service due to COVID-19 Circuit Breaker measures in Singapore extended until 31 December 2020.
	2021	4 January	Discontinued.

Service 597 (2008 - 2009)

Operator	Year	Date	Service changes
	2008	8 September	Introduced between Lor 2 Toa Payoh and Shenton Way as a peak hour one-directional service during weekday mornings.
	2009	16 November	Discontinued.

Service 598 (2008 - 2016)

Operator	Year	Date	Service changes
	2008	8 September	Introduced between Petir Rd and Shenton Way as a peak hour one-directional service during weekday mornings.
	2010	23 May	Skips temporarily abolished bus stop outside Assumption Voc Inst along Upp Bt Timah Rd to facilitate the construction of Cashew MRT station along the Downtown MRT Line.
	2015	1 March	Serves reinstated bus stop outside Assumption Pathway Sch along Upp Bt Timah Rd.
	2016	19 December	Discontinued.

Service 599 (2008 - 2023)

Operator	Year	Date	Service changes
	2008	8 September	Introduced between Hougang St 51 and Shenton Way as a peak hour one-directional service during weekday mornings.
Xing Sheng Transport Services (Current)	2016	29 August	Operations transferred to Xing Sheng Transport Services.
	2023	1 July	Discontinued.

Service 761 (2011 - 2022)

Operator	Year	Date	Service changes
	2011	17 January	Introduced between Ang Mo Kio Ave 2 and Fullerton Rd as a peak hour one-directional service during weekday mornings, replacing the deleted sectors of Premium Service 549.
	2016	3 October	Operations transferred to Commute Solutions Group and extended to terminate at Temasek Blvd.
	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 July 2020.
		1 July	Resumed normal operations.
3S Transport	2021	4 January	Operations transferred to 3S Transport.
	2022	1 January	Discontinued.

Teachers' Estate Service (2006 - 2007)

Operator	Year	Date	Service changes
	2006	26 June	Introduced between Yio Chu Kang Ter and Teachers' Est (Loop) as a day service on weekdays and Saturdays.
		9 December	Revised to operate on weekdays only.
	2007	9 April	Serves additional bus stops outside and opposite Castle Green along Ang Mo Kio Ave 6 and outside and opposite Seasons Pk along Yio Chu Kang Rd.
		21 May	Extended to ply Sembawang Hills Dr, Thomson Hill and Thomson Hills Dr before serving Teachers' Est.
		3 September	Discontinued.

Springside & Springleaf Estate Service (2007 - 2009)

Operator	Year	Date	Service changes
	2007	26 November	Introduced between Yio Chu Kang Ter (Peak) / Ang Mo Kio Int (Off Peak) and Springside/Springleaf Est (Loop) as a day service on weekdays.
	2009	1 June	Discontinued.