La serie son los 4 número siguiente a la lada, los cuales se utilizan para identificar la compañia y el asentamiento al que pertenece el número telefónico.
| Serie | Tipo | Compañia | Municipio | Estado | Asentamiento |
|---|---|---|---|---|---|
| 217 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 218 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 219 | Fijo | MOVISTAR | Ensenada | Baja California | Ensenada |
| 220 | Movil | MOVISTAR | Ensenada | Baja California | Ensenada |
| 221 | Movil | MOVISTAR | Ensenada | Baja California | Ensenada |
| 222 | Fijo | TELNOR | Ensenada | Baja California | Ensenada |
| 223 | Movil | MOVISTAR | Ensenada | Baja California | Ensenada |
| 224 | Movil | MOVISTAR | Ensenada | Baja California | Ensenada |
| 225 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 226 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 227 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 228 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 229 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 230 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 231 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 232 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 233 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 234 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 234 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 235 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 235 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 236 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 236 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 236 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 237 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 238 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 239 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 240 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 241 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 241 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 241 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 242 | Movil | MOVISTAR | Ensenada | Baja California | Ensenada |
| 243 | Movil | MOVISTAR | Ensenada | Baja California | Ensenada |
| 243 | Movil | MOVISTAR | Ensenada | Baja California | Ensenada |
| 244 | Fijo | CABLEMAS | Ensenada | Baja California | Ensenada |
| 244 | Fijo | CABLEMAS | Ensenada | Baja California | Ensenada |
| 245 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 246 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 247 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 247 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 248 | Fijo | CABLEMAS | Ensenada | Baja California | Ensenada |
| 248 | Fijo | CABLEMAS | Ensenada | Baja California | Ensenada |
| 249 | Movil | MOVISTAR | Ensenada | Baja California | Ensenada |
| 250 | Movil | MOVISTAR | Ensenada | Baja California | Ensenada |
| 251 | Movil | MOVISTAR | Ensenada | Baja California | Ensenada |
| 251 | Movil | MOVISTAR | Ensenada | Baja California | Ensenada |
| 252 | Movil | TELECOMUNICACIONES 360 | Ensenada | Baja California | Ensenada |
| 252 | Movil | TELECOMUNICACIONES 360 | Ensenada | Baja California | Ensenada |
| 253 | Movil | IBO CELL | Ensenada | Baja California | Ensenada |
| 254 | Movil | QBOCEL | Ensenada | Baja California | Ensenada |
| 255 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 256 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 257 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 258 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 259 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 260 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 261 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 261 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 262 | Movil | CELMAX | Ensenada | Baja California | Ensenada |
| 262 | Fijo | MAXCOM | Ensenada | Baja California | Ensenada |
| 262 | Movil | CELMAX | Ensenada | Baja California | Ensenada |
| 262 | Movil | CELMAX | Ensenada | Baja California | Ensenada |
| 263 | Fijo | CABLEMAS | Ensenada | Baja California | Ensenada |
| 264 | Fijo | TOTAL PLAY | Ensenada | Baja California | Ensenada |
| 265 | Fijo | KIWI NETWORKS | Ensenada | Baja California | Ensenada |
| 266 | Fijo | IP MATRIX | Ensenada | Baja California | Ensenada |
| 267 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 268 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 269 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 270 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 271 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 272 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 273 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 274 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 274 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 275 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 276 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 276 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 277 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 278 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 279 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 279 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 280 | Fijo | DIALOGA | Ensenada | Baja California | Ensenada |
| 281 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 281 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 282 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 282 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 283 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 283 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 283 | Movil | AT&T | Ensenada | Baja California | Ensenada |
| 284 | Fijo | CONVERGIA | Ensenada | Baja California | Ensenada |
| 284 | Fijo | CONVERGIA | Ensenada | Baja California | Ensenada |
| 285 | Fijo | ALESTRA | Ensenada | Baja California | Ensenada |
| 286 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 287 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 288 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 289 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 290 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 290 | Movil | TELCEL | Ensenada | Baja California | Ensenada |
| 291 | Fijo | BESTPHONE | Ensenada | Baja California | Ensenada |