View source for History of City Direct Services

==Service 651 {{WAB}} ==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!rowspan="3"|{{ComfortDelGro Bus}}
!rowspan="6"|Jurong West Ave 3 → Marina Blvd (AM)<br>Central Blvd → Jurong West Ave 3 (PM)<br>(2013 - Apr 2020)
|rowspan="2"|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.
|-
!{{Rui Feng Chartered}}
|2016
|3 October
|Operations transferred to Rui Feng Chartered.
|-
!rowspan="5"|{{TTS}}<br>(Current)
|rowspan="5"|2020
|rowspan="2"|13 January
|Operations transferred to Tower Transit Singapore.
|-
|{{DWAB}}
|-
!rowspan="2" {{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)<br>Central Blvd → Jurong West Ave 3 (PM)<br>(since Jun 2020)
|2 June
|Resumed normal operations.
|}

==Service 652 {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!rowspan="6"|{{Ren Quan Transport}}
!rowspan="9"|Upp Thomson Rd → Shenton Way (AM)<br>Anson Rd → Upp Thomson Rd (PM)<br>(2014 - Apr 2020)
|rowspan="3"|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.
|-
|rowspan="2"|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.
|-
!rowspan="6"|{{SMB}}
|rowspan="6"|2020
|rowspan="3"|6 January
|Operations transferred to SMRT Buses.
|-
|2 AM peak trips removed.
|-
|{{DWAB}}
|-
!rowspan="2" {{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.
|-
!rowspan="2"|Upp Thomson Rd → Shenton Way (AM)<br>Anson Rd → Upp Thomson Rd (PM)<br>(since Jun 2020)
|2 June
|Resumed normal operations.
|-
!{{SBST}}<br>(Current)
|2021
|6 September
|Operations transferred to SBS Transit.
|}

==Service 653 {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!rowspan="7"|{{ComfortDelGro Bus}}
!rowspan="10"|Hume Ave → Marina Blvd (AM)<br>Central Blvd → Hillview Ave (PM)<br>(2014 - Apr 2020)
|rowspan="3"|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.
|-
|rowspan="4"|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.
|-
!rowspan="6"|{{SMB}}
|rowspan="3"|2017
|rowspan="3"|13 April
|Operations transferred to SMRT Buses.
|-
|2 AM peak trips and 1 PM peak trip removed.
|-
|{{DWAB}}
|-
!rowspan="2" {{N/A}}
|rowspan="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 June 2020.
|-
!rowspan="3"|Hume Ave → Marina Blvd (AM)<br>Central Blvd → Hillview Ave (PM)<br>(since Jun 2020)
|2 June
|Resumed normal operations.
|-
!rowspan="2"|{{TTS}}<br>(Current)
|2021
|31 May
|Operations transferred to Tower Transit Singapore.
|-
|2024
|15 April
|5th AM peak trip added.
|}

==Service 654 {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!rowspan="5"|{{Ren Quan Transport}}
!rowspan="9"|Anchorvale St → Shenton Way (AM)<br>Anson Rd → Anchorvale St (PM)<br>(2014 - Apr 2020)
|rowspan="2"|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.
|-
|rowspan="2"|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.
|-
!rowspan="2"|{{BT & Tan Transport}}
|2017
|20 January
|Operations transferred to BT & Tan Transport Service.
|-
|2018
|12 June
|6th AM peak trip added. 3rd PM peak trip added.
|-
!rowspan="5"|{{SBST}}<br>(Current)
|rowspan="2"|2019
|rowspan="2"|22 July
|Operations transferred to SBS Transit.
|-
|{{DWAB}}
|-
!rowspan="2" {{N/A}}
|rowspan="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 June 2020.
|-
!Anchorvale St → Shenton Way (AM)<br>Anson Rd → Anchorvale St (PM)<br>(since Jun 2020)
|2 June
|Resumed normal operations.
|}

==Service 655 {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!rowspan="2"|{{Woodlands Transport}}
!rowspan="4"|West Coast Rd → Marina Blvd (AM)<br>Central Blvd → West Coast Rd (PM)<br>(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.
|-
!rowspan="7"|{{SBST}}<br>(Current)
|rowspan="2"|2017
|17 April
|Operations transferred to SBS Transit.
|-
|21 August
|{{DWAB}}
|-
!rowspan="2" {{N/A}}
|rowspan="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 June 2020.
|-
!rowspan="3"|West Coast Rd → Marina Blvd (AM)<br>Central Blvd → West Coast Rd (PM)<br>(since Jun 2020)
|2 June
|Resumed normal operations.
|-
|rowspan="2"|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 {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!rowspan="4"|{{Loh Gim Chong Transport}}
!rowspan="7"|Canberra Rd → Shenton Way (AM)<br>Anson Rd → Canberra Rd (PM)<br>(2014 - Apr 2020)
|rowspan="3"|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.
|-
!rowspan="7"|{{SMB}}
|rowspan="3"|2017
|rowspan="3"|17 April
|Operations transferred to SMRT Buses.
|-
|1 AM peak trip removed.
|-
|{{DWAB}}
|-
!rowspan="2" {{N/A}}
|rowspan="4"|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.
|-
!rowspan="3"|Canberra Rd → Shenton Way (AM)<br>Anson Rd → Canberra Rd (PM)<br>(since Jun 2020)
|rowspan="2"|2 June
|Resumed normal operations.
|-
|1 AM peak trip removed.
|-
!{{TTS}}<br>(Current)
|2021
|3 October
|Operations transferred to Tower Transit Singapore.
|}

==Service 657 {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!rowspan="2"|{{Transtar Travel}}
!rowspan="4"|Jurong West Ave 1 → Marina Blvd (AM)<br>Central Blvd → West Coast Rd (PM)<br>(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.
|-
!rowspan="5"|{{SMB}}
|rowspan="2"|2017
|rowspan="2"|24 April
|Operations transferred to SMRT Buses.
|-
|{{DWAB}}
|-
!rowspan="2" {{N/A}}
|rowspan="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 June 2020.
|-
!rowspan="2"|Jurong West Ave 1 → Marina Blvd (AM)<br>Central Blvd → West Coast Rd (PM)<br>(since Jun 2020)
|2 June
|Resumed normal operations.
|-
!{{TTS}}<br>(Current)
|2021
|31 May
|Operations transferred to Tower Transit Singapore.
|}

==Service 658 (2014 - 2018)==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="PAST"
!Operator
!Year
!Date
!Service changes
|-
!rowspan="4"|{{Aedge Holdings}}
|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)==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="PAST"
!Operator
!Year
!Date
!Service changes
|-
!rowspan="4"|{{Aedge Holdings}}
|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).
|-
|rowspan="2"|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 {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!rowspan="5"|{{Aedge Holdings}}
!rowspan="8"|Buangkok Green → Shenton Way (AM)<br>Anson Rd → Buangkok Green (PM)<br>(2014 - Apr 2020)
|rowspan="2"|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.
|-
|rowspan="2"|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.
|-
!rowspan="8"|{{SBST}}<br>(Current)
|rowspan="3"|2019
|rowspan="3"|2 January
|Operations transferred to SBS Transit.
|-
|1 AM peak trip removed.
|-
|{{DWAB}}
|-
!rowspan="2" {{N/A}}
|rowspan="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 June 2020.
|-
!rowspan="3"|Buangkok Green → Shenton Way (AM)<br>Anson Rd → Buangkok Green (PM)<br>(since Jun 2020)
|2 June
|Resumed normal operations.
|-
|rowspan="2"|2023
|11 September
|5th AM peak trip added.
|-
|26 December
|6th and 7th AM peak trips added.
|}

==Service 660M {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!{{SBST}}<br>(Current)
!Buangkok Crescent → Shenton Way (AM)<br>Anson Rd → Buangkok Crescent (PM)
|2024
|11 November
|To be 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 {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!rowspan="2"|{{Aedge Holdings}}
!rowspan="5"|Pasir Ris Dr 3 → Marina Blvd (AM)<br>Central Blvd → Pasir Ris Dr 3 (PM)<br>(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.
|-
!rowspan="8"|{{GAS}}<br>(Current)
|rowspan="3"|2019
|rowspan="3"|2 January
|Operations transferred to Go-Ahead Singapore.
|-
|1 AM peak trip removed.
|-
|{{DWAB}}
|-
!rowspan="2" {{N/A}}
|rowspan="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 June 2020.
|-
!Pasir Ris Dr 3 → Marina Blvd (AM)<br>Central Blvd → Pasir Ris Dr 3 (PM)<br>(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)<br>Central Blvd → Pasir Ris Dr 3 (PM)<br>(since 2022)
|2022
|3 February
|Resumed normal operations.
|}

==Service 662 (2015 - 2018)==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="PAST"
!Operator
!Year
!Date
!Service changes
|-
!rowspan="2"|{{Aedge Holdings}}
|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 {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!{{Bus Hub Service}}
!rowspan="4"|Yishun Ave 6 → Shenton Way (AM)<br>Anson Rd → Yishun Ave 6 (PM)<br>(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).
|-
!rowspan="9"|{{TTS}}<br>(Current)
|rowspan="3"|2017
|rowspan="3"|28 September
|Operations transferred to Tower Transit Singapore.
|-
|1 AM peak trip removed.
|-
|{{DWAB}}
|-
!rowspan="2" {{N/A}}
|rowspan="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 June 2020.
|-
!rowspan="4"|Yishun Ave 6 → Shenton Way (AM)<br>Anson Rd → Yishun Ave 6 (PM)<br>(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)==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="PAST"
!Operator
!Year
!Date
!Service changes
|-
!rowspan="2"|{{Aedge Holdings}}
|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 {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!rowspan="2"|{{Bus Hub Service}}
!rowspan="4"|Marsiling Dr → Shenton Way (AM)<br>Anson Rd → Marsiling Dr (PM)<br>(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.
|-
!rowspan="5"|{{TTS}}
|rowspan="2"|2017
|rowspan="2"|12 October
|Operations transferred to Tower Transit Singapore.
|-
|{{DWAB}}
|-
!rowspan="2" {{N/A}}
|rowspan="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 June 2020.
|-
!rowspan="3"|Marsiling Dr → Shenton Way (AM)<br>Anson Rd → Marsiling Dr (PM)<br>(since Jun 2020)
|2 June
|Resumed normal operations.
|-
!rowspan="2"|{{SMB}}<br>(Current)
|2021
|31 May
|Operations transferred to SMRT Buses.
|-
|2023
|29 May
|1 AM peak trip removed.
|}

==Service 666 {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!{{BT & Tan Transport}}
!rowspan="3"|Punggol Dr → Marina Blvd (AM)<br>Central Blvd → Punggol Dr (PM)<br>(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).
|-
!rowspan="7"|{{GAS}}<br>(Current)
|rowspan="5"|2020
|rowspan="2"|2 March
|Operations transferred to Go-Ahead Singapore.
|-
|{{DWAB}}
|-
!rowspan="2" {{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)<br>Central Blvd → Punggol Dr (PM)<br>(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)<br>Central Blvd → Punggol Dr (PM)<br>(since 2022)
|2022
|3 February
|Resumed normal operations.
|}

==Service 667 {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!{{Tong Tar Transport Service}}
!rowspan="3"|Clementi Ave 4 → Marina Blvd (AM)<br>Central Blvd → Clementi Ave 4 (PM)<br>(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).
|-
!rowspan="5"|{{SBST}}<br>(Current)
|rowspan="5"|2020
|rowspan="2"|9 March
|Operations transferred to SBS Transit.
|-
|{{DWAB}}
|-
!rowspan="2" {{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)<br>Central Blvd → Clementi Ave 4 (PM)<br>(since Jun 2020)
|2 June
|Resumed normal operations.
|}

==Service 668 {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!rowspan="5"|{{BT & Tan Transport}}
!rowspan="2"|Ang Mo Kio Ave 5 → Marina Blvd (AM)<br>Central Blvd → Ang Mo Kio Ave 5 (PM)<br>(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.
|-
!rowspan="2" {{N/A}}
|rowspan="5"|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.
|-
!rowspan="3"|Ang Mo Kio Ave 5 → Marina Blvd (AM)<br>Central Blvd → Ang Mo Kio Ave 5 (PM)<br>(since Jun 2020)
|2 June
|Resumed normal operations.
|-
!rowspan="2"|{{SBST}}<br>(Current)
|rowspan="2"|14 December
|Operations transferred to SBS Transit.
|-
|{{DWAB}}
|}

==Service 669 (2016 - 2019)==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="PAST"
!Operator
!Year
!Date
!Service changes
|-
!rowspan="2"|{{Tong Tar Transport Service}}
|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 {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!{{Tong Tar Transport Service}}
!rowspan="4"|Yishun Ave 7 → Marina Blvd (AM)<br>Central Blvd → Yishun Ave 7 (PM)<br>(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).
|-
!rowspan="6"|{{SMB}}
|rowspan="6"|2020
|rowspan="3"|30 March
|Operations transferred to SMRT Buses.
|-
|1 AM peak trip removed.
|-
|{{DWAB}}
|-
!rowspan="2" {{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.
|-
!rowspan="2"|Yishun Ave 7 → Marina Blvd (AM)<br>Central Blvd → Yishun Ave 7 (PM)<br>(since Jun 2020)
|2 June
|Resumed normal operations.
|-
!{{TTS}}<br>(Current)
|2021
|5 September
|Operations transferred to Tower Transit Singapore.
|}

==Service 671 {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!rowspan="2"|{{Rui Feng Chartered}}
!rowspan="5"|Punggol Rd → Marina Blvd (AM)<br>Central Blvd → Punggol Rd (PM)<br>(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.
|-
!rowspan="9"|{{SBST}}<br>(Current)
|rowspan="6"|2020
|rowspan="3"|13 January
|Operations transferred to SBS Transit.
|-
|1 AM peak trip removed.
|-
|{{DWAB}}
|-
!rowspan="2" {{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.
|-
!rowspan="4"|Punggol Rd → Marina Blvd (AM)<br>Central Blvd → Punggol Rd (PM)<br>(since Jun 2020)
|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.
|}

==Service 672 {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!rowspan="2"|{{Rui Feng Chartered}}
!rowspan="5"|Hougang St 51 → Marina Blvd (AM)<br>Central Blvd → Hougang St 51 (PM)<br>(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.
|-
!rowspan="7"|{{SBST}}<br>(Current)
|rowspan="6"|2020
|rowspan="3"|13 January
|Operations transferred to SBS Transit.
|-
|1 AM peak trip removed.
|-
|{{DWAB}}
|-
!rowspan="2" {{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.
|-
!rowspan="2"|Hougang St 51 → Marina Blvd (AM)<br>Central Blvd → Hougang St 51 (PM)<br>(since Jun 2020)
|2 June
|Resumed normal operations.
|-
|2024
|27 May
|3rd and 4th AM peak trips added. 3rd PM peak trip added.
|}

==Service 673 {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!{{GAS}}<br>(Current)
!Punggol Way → Temasek Blvd (AM)<br>Temasek Blvd → Punggol Way (PM)<br>(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 {{WAB}}==
{| class="toccolours bushist" border="1" cellpadding="3"
|-class="BUS"
!Operator
!Route
!Year
!Date
!Service changes
|-
!{{TTS}}<br>(Current)
!Tengah Drive → Marina Blvd (AM)<br>Central Blvd → Tengah Drive (PM)<br>(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.
|}

[[Category: Buses]]