| Caen | Twisto | SMTC-Caen |  | 02.31.15.55.50 | - 25 bus routes
- 2 tram lines
- 29 localities served
- 217 400 residents concerned
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| Cahors | Evidence | Syndicat Intercommunal à Vocation Unique des Transports Cahors - Pradines |  | 05.65.53.07.07 | - 5 bus routes
- 2 localities served
- 23 000 residents concerned
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| Calais | Opale Bus | Syndicat Intercommunal des Transports Urbains de l'Agglomération de Calais |  | 03.21.19.72.72 | - 13 bus routes
- 6 localities served
- 103 746 residents concerned
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| Cambrai | Transports Urbain du Cambrésis | Communauté d'Agglomération de Cambrai |  | 03.27.82.28.55 | - 5 bus routes
- 6 localities served
- 49 623 residents concerned
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| Cannes | Bus Azur | Syndicat Intercommunal des Transports Publics de Cannes-Le Cannet-Mandelieu-La Napoule |  | 08.25.82.55.99 | - 24 bus routes
- 5 localities served
- 128 744 residents concerned
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| Carcassonne | Agglo'Bus | Communauté d'Agglomération du Carcassonnais |  | 04.68.47.82.22 | - 15 bus routes
- 2 transport on request routes
- 21 localities served
- 46 216 residents concerned
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| Carhaix Plouguer | Taxi'Com | Communauté de Communes du Poher |  | 02.98.99.38.61 | - 1 bus route
- 1 locality served
- 8 024 residents concerned
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| Carpentras | Trans'CoVe | Communauté de Communes Ventoux-Comtat-Venaissin |  | 04.90.67.20.25 | - 5 bus routes
- 4 transport on request routes
- 19 localities served
- 56 062 residents concerned
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| Carros | Bus Varmer | Ville de Carros |  | 04.92.08.82.02 | - 3 bus routes
- 1 transport on request route
- 5 localities served
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| Carry le Rouet | Bus de la Côte Bleue | Communauté Urbaine Marseille Provence Métropole |  | 04.42.87.05.84 | - 11 bus routes
- 8 localities served
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| Cassis | Bus de la Marcouline | Communauté Urbaine Marseille Provence Métropole |  | 04.42.73.29.29 | - 7 bus routes
- 5 localities served
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| Castres | Libellus | Communauté d'Agglomération de Castres-Mazamet |  | 0.810.140.140 | - 10 bus routes
- 2 transport on request routes
- 1 locality served
- 84 429 residents concerned
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| Châlons en Champagne | SitacBus | Communauté d'Agglomération de Châlons-en-Champagne |  | 03.26.69.59.00 | - 8 bus routes
- 7 localities served
- 67047 residents concerned
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| Chalon sur Saône | Zoom | Communauté d'Agglomération Chalon-Val de Bourgogne |  | 03.85.93.18.80 | - 20 bus routes
- 38 localities served
- 107 000 residents concerned
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| Chambéry | STAC | Chambéry-Métropole |  | 04.79.68.67.00 | - 31 bus routes
- 18 localities served
- 117 000 residents concerned
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| Chamonix Mont Blanc | Chamonix Bus | Syndicat Intercommunal à Vocation Multiple de la Haute Vallée de l'Arve |  | 04.50.53.05.55 | - 4 bus routes
- 2 localities served
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| Chantilly | DUC | Ville de Chantilly |  | 03.44.53.93.60 | - 1 bus route
- 1 locality served
- 12 000 residents concerned
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| Charleville Mézières | TAC | Communauté d'Agglomération de Charleville-Mézières |  | 03.24.33.32.32 | - 9 bus routes
- 1 transport on request route
- 9 localities served
- 76 000 residents concerned
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| Chartres | Filibus | Syndicat Mixte des Transports Urbains du Bassin Chartrain |  | 02.37.36.26.98 | - 12 bus routes
- 2 transport on request routes
- 8 localities served
- 86 201 residents concerned
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| Châteaubriant | CastelBus | Ville de Châteaubriant |  | 08.25.08.71.56 | - 1 bus route
- 1 locality served
- 13 000 residents concerned
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| Châteaudun | C'Bus | Ville de Châteaudun | - | 02.37.44.63.00 | - 2 bus routes
- 1 locality served
- 15 378 residents concerned
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| Châteauroux | Horizon | Communauté d'Agglomération Castelroussine |  | 02.54.60.11.00 | - 12 bus routes
- 1 transport on request route
- 6 localities served
- 74 000 residents concerned
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| Château Thierry | Transval | Syndicat Intercommunal de Transport Urbain de l'Agglomération de Château-Thierry |  | 0800.84.82.20 | - 10 bus routes
- 14 localities served
- 26 888 residents concerned
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| Châtellerault | TAC | Communauté d'Agglomération du Pays Chatelleraudais |  | 05.49.93.16.54 | - 10 bus routes
- 8 localities served
- 56 000 residents concerned
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| Chaumont | Le Bus | Communauté de Communes du Pays Chaumontais |  | 0800.23.50.37 (n° Vert) | - 6 bus routes
- 15 transport on request routes
- 19 localities served
- 35 420 residents concerned
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| Chauny | TAC | Syndicat Intercommunal des Transports de l'Agglomération de Chauny |  | 03.23.40.27.90 | - 4 bus routes
- 8 localities served
- 19 506 residents concerned
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| Cherbourg Octeville | Zéphir Bus | Communauté Urbaine de Cherbourg |  | 0.810.810.050 | - 12 bus routes
- 2 transport on request routes
- 6 localities served
- 94 007 residents concerned
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| Chinon | Sitravel | Syndicat Intercommunal des Transports Vienne et Loire |  | 02.47.93.53.00 | |
| Cholet | CholetBus | Communauté d'Agglomération du Choletais |  | 02.41.62.65.65 | - 12 bus routes
- 13 localities served
- 82 324 residents concerned
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| Clermont Ferrand | T2C | SMTC-Clermont-Ferrand |  | 04.73.28.70.00 | - 26 bus routes
- 1 tram line
- 22 localities served
- 285 000 residents concerned
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| Cluses | Transports Urbains de Cluses | Ville de Cluses | - | 04.50.98.07.81 | |
| Cognac | Transcom | Communauté de Communes de Cognac |  | 05.45.82.01.99 | - 4 bus routes
- 5 localities served
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| Colmar | TRACE | Communauté d'Agglomération de Colmar |  | 03.89.20.80.80 | - 12 bus routes
- 1 transport on request route
- 18 localities served
- 105551 residents concerned
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| Compiègne | TIC | Communauté d'Agglomération de la Région de Compiègne |  | 03.44.83.36.26 | - 6 bus routes
- 5 transport on request routes
- 15 localities served
- 70 000 residents concerned
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| Concarneau | Busco | Syndicat Intercommunal à Vocation Unique Concarneau-Melgven |  | 02.98.97.13.22 | - 5 bus routes
- 6 transport on request routes
- 2 localities served
- 23 000 residents concerned
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| Creil | STAC | Communauté d'Agglomération Creilloise |  | 03.44.66.89.89 | - 11 bus routes
- 4 localities served
- 70 500 residents concerned
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