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 |
|---|---|---|---|---|---|
| 249 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 250 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 250 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 251 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 252 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 252 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 253 | Movil | FREEDOMPOP | Guasave | Sinaloa | Adolfo ruiz cortines |
| 253 | Movil | FREEDOMPOP | Guasave | Sinaloa | Adolfo ruiz cortines |
| 253 | Movil | FREEDOMPOP | Guasave | Sinaloa | Adolfo ruiz cortines |
| 253 | Movil | FREEDOMPOP | Guasave | Sinaloa | Guasave |
| 253 | Movil | FREEDOMPOP | Guasave | Sinaloa | Guasave |
| 253 | Movil | FREEDOMPOP | Guasave | Sinaloa | Guasave |
| 254 | Movil | VADSA | Guasave | Sinaloa | Guasave |
| 254 | Fijo | VADSA | Guasave | Sinaloa | Guasave |
| 255 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 255 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 256 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 257 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 258 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 259 | Fijo | MEGACABLE | Guasave | Sinaloa | Guasave |
| 259 | Fijo | MEGACABLE | Guasave | Sinaloa | Guasave |
| 259 | Fijo | MEGACABLE | Guasave | Sinaloa | Guasave |
| 260 | Movil | ABIX | Guasave | Sinaloa | Guasave |
| 261 | Fijo | MEGACABLE | Guasave | Sinaloa | Guasave |
| 261 | Fijo | MEGACABLE | Guasave | Sinaloa | Guasave |
| 262 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 263 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 264 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 265 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 266 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 266 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 267 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 268 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 269 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 270 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 271 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 271 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 272 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 273 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 274 | Fijo | MEGACABLE | Guasave | Sinaloa | Guasave |
| 274 | Movil | MEGACABLE | Guasave | Sinaloa | Guasave |
| 274 | Movil | MEGACABLE | Guasave | Sinaloa | Adolfo ruiz cortines |
| 274 | Movil | MEGACABLE | Sinaloa | Sinaloa | Sinaloa de leyva |
| 274 | Movil | MEGACABLE | Guasave | Sinaloa | Estacion bamoa (campo wilson) |
| 274 | Movil | MEGACABLE | Guasave | Sinaloa | Gabriel leyva solano (benito juarez) |
| 274 | Movil | MEGACABLE | Guasave | Sinaloa | Juan jose rios |
| 274 | Fijo | MEGACABLE | Guasave | Sinaloa | Guasave |
| 275 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 276 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 277 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 278 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 279 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 279 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 280 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 281 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 282 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 283 | Fijo | ALTÁN | Guasave | Sinaloa | Guasave |
| 283 | Movil | ALTÁN | Guasave | Sinaloa | Guasave |
| 284 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 285 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 286 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 287 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 288 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 289 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 290 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 291 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 292 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 293 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 293 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 294 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 295 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 296 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 297 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 297 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 298 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 299 | Fijo | TELIGENTIA | Guasave | Sinaloa | Guasave |
| 300 | Fijo | NGX NETWORKS | Guasave | Sinaloa | Guasave |
| 301 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 302 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 303 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 304 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 305 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 306 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 307 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 308 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 309 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 310 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 310 | Movil | AT&T | Guasave | Sinaloa | Glorias, las |
| 310 | Movil | AT&T | Guasave | Sinaloa | Glorias, las |
| 310 | Movil | AT&T | Guasave | Sinaloa | Glorias, las |
| 311 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 312 | Movil | CORPORACIÓN NOVAVISIÓN | Sinaloa | Sinaloa | Sinaloa de leyva |
| 313 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 314 | Movil | AT&T | Guasave | Sinaloa | Guasave |
| 315 | Movil | ALTÁN | Guasave | Sinaloa | Guasave |
| 316 | Fijo | CENTERNEXT | Guasave | Sinaloa | Guasave |
| 317 | Fijo | TV CABLE | Guasave | Sinaloa | Guasave |
| 317 | Fijo | TV CABLE | Guasave | Sinaloa | Guasave |
| 318 | Fijo | MEGACABLE | Guasave | Sinaloa | Guasave |
| 319 | Movil | AT&T | Guasave | Sinaloa | Guasave |