| ParisÎle-de-France | 01 | +33 1 | Fixed-number family historically associated with Île-de-France |
| NantesPays de la Loire | 02 | +33 2 | Fixed-number family historically associated with north-western Metropolitan France |
| StrasbourgGrand Est | 03 | +33 3 | Fixed-number family historically associated with north-eastern Metropolitan France |
| MarseilleProvence-Alpes-Côte d’Azur | 04 | +33 4 | Fixed-number family historically associated with south-eastern Metropolitan France and Corsica |
| ToulouseOccitanie | 05 | +33 5 | Fixed-number family historically associated with south-western Metropolitan France |
| ParisÎle-de-France | 0140 | +33 140 | Historically associated with Paris; not a reliable current-location indicator |
| MarseilleProvence-Alpes-Côte d’Azur | 0491 | +33 491 | Historically associated with Marseille and part of Bouches-du-Rhône |
| LyonAuvergne-Rhône-Alpes | 0472 | +33 472 | Historically associated with Lyon and its surrounding urban area |
| ToulouseOccitanie | 0561 | +33 561 | Historically associated with Toulouse and Haute-Garonne |
| NiceProvence-Alpes-Côte d’Azur | 0493 | +33 493 | Historically associated with Nice and Alpes-Maritimes |
| NantesPays de la Loire | 0240 | +33 240 | Historically associated with Nantes and Loire-Atlantique |
| MontpellierOccitanie | 0467 | +33 467 | Historically associated with Montpellier and Hérault |
| StrasbourgGrand Est | 0388 | +33 388 | Historically associated with Strasbourg and Bas-Rhin |
| BordeauxNouvelle-Aquitaine | 0556 | +33 556 | Historically associated with Bordeaux and Gironde |
| LilleHauts-de-France | 0320 | +33 320 | Historically associated with Lille and the Lille metropolitan area |
| RennesBrittany | 0299 | +33 299 | Historically associated with Rennes and Ille-et-Vilaine |
| ReimsGrand Est | 0326 | +33 326 | Historically associated with Reims and Marne |
| Saint-ÉtienneAuvergne-Rhône-Alpes | 0477 | +33 477 | Historically associated with Saint-Étienne and Loire |
| ToulonProvence-Alpes-Côte d’Azur | 0494 | +33 494 | Historically associated with Toulon and Var |
| Le HavreNormandy | 0235 | +33 235 | Historically associated with Rouen, Le Havre and parts of Seine-Maritime |
| GrenobleAuvergne-Rhône-Alpes | 0476 | +33 476 | Historically associated with Grenoble and Isère |
| DijonBourgogne-Franche-Comté | 0380 | +33 380 | Historically associated with Dijon and Côte-d’Or |
| AngersPays de la Loire | 0241 | +33 241 | Historically associated with Angers and Maine-et-Loire |
| NîmesOccitanie | 0466 | +33 466 | Historically associated with Nîmes and Gard |
| ToursCentre-Val de Loire | 0247 | +33 247 | Historically associated with Tours and Indre-et-Loire |