PayByPhone service is available in many cities across the UK.
Scotland & Northern England
- Aberdeen
- Aberdeenshire
- Ayrshire
- Bury
- Blackpool
- Cheshire East
- Darlington
- Durham
- East Dunbartonshire
- Eden District
- Gateshead
- Hambleton
- Manchester
- Mersey Travel
- Moray
- Newcastle
- Northern Care Alliance
- North York Moors
- Northumberland
- Queen Margaret University Edinburgh
- South Lakeland
- South Tyneside
- Teesside University
- University of Manchester
- University of Aberdeen
- University of York
- Wigan
- Whitehaven Ports
Midlands
- Ashfield
- Blaby
- Broxtowe
- Cannock Chase
- Chesterfield
- Coventry
- Derbyshire Dales
- East Staffordshire
- Harborough
- High Peak
- Hinckley and Bosworth
- Leicestershire Parks
- Leicester City Council
- Leeds Teaching Hospital
- Lichfield
- Lincoln
- Melton
- Newark and Sherwood
- Newcastle Under Lyme
- North West Leicestershire
- North Northamptonshire Council
- Northampton Hospital
- Oadby and Wigston
- Sandwell
- Sheffield
- Southwell Town Council
- Stafford
- Stafforshire County Council
- Stafforshire Morrlands
- Walsall
London
- Barnet, Enfield and Haringey NHS Trust
- London Borough of Barking and Dagenham
- London Borough of Barnet
- London Borough of Brent
- London Borough of Ealing
- London Borough of Enfield
- London Borough of Harrow
- London Borough of Hounslow
- London Borough of Hillingdon
- London Borough of Lambeth
- London Borough of Lewisham
- London Borough of Newham
- London Borough of Southwark
- London Borough of Waltham Forest
- Royal Borough of Kensington and Chelsea
- Royal Borough of Greenwich
- Royal Botanic Gardens, Kew
- University of Greenwich
- University Hospital Lewisham
- Queen Elizabeth Hospital Greenwich
South East​
- Bracknell Forest
- Brighton & Hove
- Broxbourne
- Dacorum
- Dymchurch
- East Hertfordshire
- Fareham
- Hertsmere
- Isle of Wight
- Luton
- Lewes Cooperative Learning Partnership
- National Trust
- North Hertfordshire
- Peterborough
- Rochford
- Southampton
- Shoreham Port
- St Albans
- Stevenage
- Sussex Estate & Facilities
- University of Kent
- Welwyn Hatfield
- West Berkshire
South West & Wales
- BCP Council
- Bridgend
- Cheltenham
- Conwy
- Cotswolds
- Denbighshire
- Forest of Dean
- Flintshire
- Gwynedd
- Isle of Anglesey
- Longleat Enterprise
- Mendip
- Merthyr Tydfil
- Monmouthshire
- Pembrokeshire
- Pembrokeshire Coast National Park
- Sedgemoor
- Somerset
- Somerset West and Taunton
- South Gloucestershire
- Swindon
- Tywyn Town
- University of Bristol
- University of Southampton
- University of the West of England Bristol
- University of Exeter
- Vale of Glamorgan
Channel Islands
- States of Jersey
- Ports of Jersey
Private parking operators
- Active Nation
- Bank Parking
- Bourton Vale Car Parking LTD
- Bradgate Parks
- Bransby Wilson
- BTCM Ltd
- Britannia Parking
- Corinthian
- Creative Folkstone
- Cumberland Street Car Park
- Dusanj Real Estate
- Euro Car Parks
- Empark (NCP)
- Gemini Parking Solutions
- Group Nexus
- Horizon Parking
- JLL - Coventry
- Marco UK
- Mazecroft Properties Ltd
- Moto Hospitality Limited
- My Car Parks Limited
- National Water Sports Centre
- NCP (UK)
- NCP Greater Anglia
- NCP Transport for London
- NCP Transport for Wales
- Nexus Metro
- NSL Ltd
- ParkBee
- ParkingEye UK
- Parking Partners Limited
- Parking Solutions 24
- Royal Oak Hotel
- Royal Society for the Protection of Birds
- Saba Park Services UK Limited
- SIP Car Parks
- Smart Parking
- Sheriff Enforcing
- Total Parking Solutions LTD
- UK Parking Control UKPC
- Waterloo Hotel & Lodge
- Wise Parking LTD
- XWR Limited
- YourParkingSpace