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The primary highways of Ecuador are designated with both a name and an alphanumeric designation. The highway designations begin with the letter E followed by a number.
If the highway is a trunk highway (travelling north to south), the number is odd. They are numbered from smallest to largest from the west to the east.
If the highway is a transverse highway (travelling east to west), the number is even. They are numbered from smallest to largest from the north to the south.
| Shield | Number | Name | Symbol | Route | Length |
|---|---|---|---|---|---|
 | E5 | Troncal Insular (Insular Trunk) | tortoise | Baltra - Puerto Ayora | 38 km |
 | E15 | Troncal del Pacífico (Pacific Trunk) | dolphin | Colombia - Esmeraldas - Salinas | 741 km |
 | E25 | Troncal de la Costa (Coastal Trunk) | butterfly | San Miguel de los Bancos - Guayaquil - Peru | 664 km |
 | E25A | Troncal de la Costa Alterna (Alternate Coastal Trunk) | - | in Santo Domingo de los Tsáchilas | 10 km |
  | E35 | Troncal de la Sierra (Highland Trunk) The Ecuadorian part of the Pan-American Highway | condor | Colombia - Quito - Peru | 781 km |
 | E45 | Troncal Amazónica (Amazon Trunk) | toucan | Colombia - Puyo - Macas - Zamora | 701 km |
 | E45A | Troncal Amazónica Alterna (Alternate Amazon Trunk) | - | Nueva Loja - Cotundo | 85 km |
| Shield | Number | Name | Symbol | Route | Length |
|---|---|---|---|---|---|
 | E10 | Transversal Fronteriza (Frontier Transverse) | jaguar | San Lorenzo - Ibarra - Nueva Loja - Colombia | 453 km |
 | E20 | Transversal Norte (North Transverse) | monkey | Esmeraldas - Quito - Puerto Francisco de Orellana | 336 km |
 | E30 | Transversal Central (Central Transverse) | parrot | Manta - Puyo | 438 km |
 | E40 | Transversal Austral (Southern Transverse) | hummingbird | Salinas - Guayaquil - Puerto Morona | 649 km |
 | E50 | Transversal Sur (South Transverse) | anteater | Peru - Zamora | 224 km |
| Shield | Number | Name | Route | Length |
|---|---|---|---|---|
 | E28 | Vía Colectora Quito-La Independencia | Quito - La Independencia | 187 km |
 | E28A | Vía Colectora Quito-Tambillo | Quito - Tambillo | 20 km |
 | E28B | Vía Colectora Quito-Cayambe | Quito - Cayambe | 60 km |
 | E28C | Vía Colectora Quito-Pifo | Quito - Pifo | 15 km |
 | E38 | Vía Colectora Santo Domingo-Rocafuerte | Santo Domingo de Los Tsáchilas - Rocafuerte | 200 km |
 | E39 | Vía Colectora Rocafuerte-El Rodeo | Rocafuerte - El Rodeo | 20 km |
 | E46 | Vía Colectora Guamote-Macas | Guamote - Macas | 70 km |
 | E47 | Vía Colectora El Triunfo-Alausí | El Triunfo - Alausí | 190 km |
 | E48 | Vía Colectora Guayaquil-El Empalme | Velasco Ibarra - Guayaquil | 143 km |
 | E49 | Vía Colectora Durán-T de Milagro | Milagro - Durán | 35 km |
 | E49A | Vía Colectora Durán-km 27 | Guayaquil - Durán - Naranjal | 10 km |
 | E58 | Vía Colectora La Troncal-Puerto Inca | Puerto Inca - La Troncal | 27 km |
 | E59 | Vía Colectora Cumbe-Y de Corralitos | Machala - Cumbe | 144 km |
 | E68 | Vía Colectora Alamor-El Empalme | Alamor - El Empalme | 46 km |
 | E69 | Vía Colectora Catamayo-Macará | Catamayo - Macará | 147 km |
 | E182 | Vía Colectora Maldonado-Tulcán | Maldonado - Tulcán | 45 km |
 | E282 | Vía Colectora Tabacundo-Cajas | Tabacundo - Cajas | 10 km |
 | E283 | Vía Colectora Guayllabamba-Santa Rosa de Cusubamba | Guayllabamba - Santa Rosa de Cusubamba | 6 km |
 | E381 | Vía Colectora El Salto-Muisne | El Salto - Muisne | 10 km |
 | E382 | Vía Colectora T del Carmen-Pedernales | T del Carmen - Pedernales | |
 | E383 | Vía Colectora Y de San Antonio-Bahía de Caráquez | San Antonio - Bahía de Caráquez | 60 km |
 | E383A | Vía Colectora Y de San Antonio-San Vicente | San Antonio - San Vicente | 35 km |
 | E384 | Vía Colectora Chone-Pimpiguasí | Chone - El Rodeo | |
 | E482 | Vía Colectora Montecristi-Nobol | Montecristi - Piedrahita | 181 km |
 | E482A | Vía Colectora Guayabal-La Pila | La Pila - Guayabal | 10 km |
 | E483 | Vía Colectora Jipijapa-Puerto Cayo | Jipijapa - Puerto Cayo | 29 km |
 | E484 | Vía Colectora Palestina-San Juan | Palestina - San Juan | |
 | E485 | Vía Colectora Daule-T de Baba | Daule - Babahoyo | 64 km |
 | E486 | Vía Colectora Aurora-T de Salitre | T de Salitre - Guayaquil | 51 km |
 | E487 | Vía Colectora La Unión-T del Triunfo | T del Triunfo - Bucay - Cajabamba | |
 | E488 | Vía Colectora Milagro-Bucay | Milagro - Bucay | 61 km |
 | E489 | Vía Colectora Posorja-Nobol | Gómez Rendón - Posorja | 48 km |
 | E490 | Vía Colectora Riobamba-T de Baños | Riobamba naar T de Baños | 30 km |
 | E491 | Vía Colectora Babahoyo-Ambato | Babahoyo - Guaranda - Ambato | 209 km |
 | E492 | Vía Colectora Guaranda-Chimborazo | Guaranda - Riobamba | 88 km |
 | E493 | Vía Colectora Acceso Norte de Ambato | E30/E35 - Ambato | |
 | E493A | Vía Colectora Acceso Central de Ambato | E30/E35 - Ambato | |
 | E493B | Vía Colectora Acceso Sur de Ambato | E35 - Ambato | |
 | E582 | Vía Colectora Cuenca-Puerto Inca | Puerto Inca - Cuenca | 119 km |
 | E583 | Vía Colectora Puerto Bolívar-Y del Cambio | Machala - Puerto Bolívar | 7 km |
 | E584 | Vía Colectora Pasaje-Y del Enano | Pasaje - Y del Enano | |
 | E585 | Vía Colectora Y de Pasaje-Piñas-Y de Zaracay | Machala - Zaracay | 50 km |
 | E682 | Vía Colectora Loja-La Balsa | Loja - La Balsa - Peru | 151 km |
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