| DEX↕️ | ✔️ | Name↕️ | Game↕️ | Location↕ |
|---|---|---|---|---|
| 23 | Ekans | Black | Transfer | |
| 23 | Ekans | Shield | Unobtainable | |
| 23 | Ekans | Sword | Unobtainable | |
| 23 | Ekans | LetsGoEevee | Routes 3, 4 | |
| 23 | Ekans | LetsGoPikachu | Trade | |
| 23 | Ekans | UltraMoon | Route 2 | |
| 23 | Ekans | UltraSun | Route 2 | |
| 23 | Ekans | Moon | Trade | |
| 23 | Ekans | Sun | Trade | |
| 23 | Ekans | AlphaSapphire | Trade | |
| 23 | Ekans | OmegaRuby | Trade | |
| 23 | Ekans | Y | Route 14 (Horde encounter) | |
| 23 | Ekans | X | Route 14 (Horde encounter) | |
| 23 | Ekans | White2 | Transfer | |
| 23 | Ekans | Black2 | Transfer | |
| 23 | Ekans | White | Transfer | |
| 23 | Ekans | Red | Routes 4, 8, 9, 10, 11, 23 | |
| 23 | Ekans | SoulSilver | Routes 3, 4, 32, 33
Safari Zone (Morning/Day) | |
| 23 | Ekans | HeartGold | Goldenrod Game Corner
Safari Zone (Morning/Day) | |
| 23 | Ekans | Platinum | Route 212 (FireRed) | |
| 23 | Ekans | Pearl | Route 212 (FireRed) | |
| 23 | Ekans | Diamond | Route 212 (FireRed) | |
| 23 | Ekans | LeafGreen | Trade, Event | |
| 23 | Ekans | FireRed | Routes 4, 8, 9, 10, 11, 23 | |
| 23 | Ekans | Emerald | Trade | |
| 23 | Ekans | Sapphire | Trade | |
| 23 | Ekans | Ruby | Trade | |
| 23 | Ekans | Crystal | Routes 3, 4, 32, 33, 42 (Morning/Day)
Routes 26, 27, 32, 33, 42, Azalea Town (Headbutt trees) | |
| 23 | Ekans | Silver | Routes 3, 4, 32, 33 | |
| 23 | Ekans | Gold | Goldenrod Game Corner | |
| 23 | Ekans | Yellow | Trade | |
| 23 | Ekans | Blue | Trade |