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 |
|---|---|---|---|---|---|
| 577 | Fijo | TELNOR | Mexicali | Baja California | San felipe |
| 577 | Fijo | TELNOR | Mexicali | Baja California | Mexicali |
| 577 | Fijo | TELNOR | Mexicali | Baja California | San felipe |
| 577 | Fijo | TELNOR | Mexicali | Baja California | San felipe |
| 577 | Fijo | TELNOR | Mexicali | Baja California | Mexicali |
| 578 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 579 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 580 | Fijo | TELNOR | Mexicali | Baja California | Mexicali |
| 580 | Fijo | TELNOR | Mexicali | Baja California | Mexicali |
| 580 | Fijo | TELNOR | Mexicali | Baja California | Mexicali |
| 580 | Fijo | TELNOR | Mexicali | Baja California | Mexicali |
| 580 | Fijo | TELNOR | Mexicali | Baja California | Mexicali |
| 580 | Fijo | TELNOR | Mexicali | Baja California | Mexicali |
| 580 | Fijo | TELNOR | Mexicali | Baja California | Mexicali |
| 581 | Movil | MOVISTAR | Mexicali | Baja California | Mexicali |
| 581 | Movil | MOVISTAR | Mexicali | Baja California | Mexicali |
| 582 | Fijo | TELNOR | Mexicali | Baja California | Mexicali |
| 583 | Movil | MOVISTAR | Mexicali | Baja California | Mexicali |
| 584 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 584 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 584 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 584 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 585 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 585 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 585 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 585 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 585 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 586 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 586 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 587 | Movil | MOVISTAR | Mexicali | Baja California | Mexicali |
| 588 | Movil | MOVISTAR | Mexicali | Baja California | Mexicali |
| 589 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 590 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 591 | Fijo | TELNOR | Mexicali | Baja California | Mexicali |
| 592 | Fijo | TELNOR | Mexicali | Baja California | Mexicali |
| 593 | Movil | MOVISTAR | Mexicali | Baja California | Mexicali |
| 594 | Movil | MOVISTAR | Mexicali | Baja California | Mexicali |
| 595 | Movil | MOVISTAR | Mexicali | Baja California | Mexicali |
| 595 | Movil | MOVISTAR | Mexicali | Baja California | Mexicali |
| 596 | Fijo | TELNOR | Mexicali | Baja California | Mexicali |
| 597 | Movil | MOVISTAR | Mexicali | Baja California | Mexicali |
| 598 | Fijo | TELNOR | Mexicali | Baja California | Mexicali |
| 599 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 599 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 600 | Movil | ADDINTELI | Mexicali | Baja California | Mexicali |
| 601 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 602 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 603 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 604 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 605 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 606 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 607 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 607 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 607 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 607 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 608 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 608 | Movil | TELCEL | Mexicali | Baja California | Mexicali |
| 609 | Movil | ALTÁN | Mexicali | Baja California | Mexicali |
| 610 | Movil | ALTÁN | Mexicali | Baja California | Mexicali |
| 611 | Movil | ALTÁN | Mexicali | Baja California | Mexicali |
| 611 | Movil | ALTÁN | Mexicali | Baja California | Mexicali |
| 612 | Fijo | CABLEMAS | Mexicali | Baja California | Mexicali |
| 612 | Fijo | CABLEMAS | Mexicali | Baja California | Mexicali |
| 613 | Fijo | CABLEMAS | Mexicali | Baja California | Mexicali |
| 613 | Fijo | CABLEMAS | Mexicali | Baja California | Mexicali |
| 614 | Fijo | COEFICIENTE | Mexicali | Baja California | Mexicali |
| 615 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 616 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 617 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 618 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 619 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 619 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 620 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 621 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 621 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 622 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 623 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 624 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 625 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 626 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 626 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 627 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 628 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 628 | Movil | AT&T | Mexicali | Baja California | Mexicali |
| 629 | Fijo | CABLEMAS | Mexicali | Baja California | Mexicali |
| 629 | Fijo | CABLEMAS | Mexicali | Baja California | Mexicali |
| 630 | Movil | OPERBES | Mexicali | Baja California | Mexicali |
| 631 | Fijo | TOTAL PLAY | Mexicali | Baja California | Mexicali |
| 631 | Fijo | TOTAL PLAY | Mexicali | Baja California | Mexicali |
| 632 | Movil | FREEDOMPOP | Mexicali | Baja California | Mexicali |
| 632 | Movil | FREEDOMPOP | Mexicali | Baja California | Mexicali |
| 632 | Movil | FREEDOMPOP | Mexicali | Baja California | Mexicali |
| 633 | Fijo | TOTAL PLAY | Mexicali | Baja California | Mexicali |
| 633 | Fijo | TOTAL PLAY | Mexicali | Baja California | Mexicali |
| 634 | Fijo | TOTAL PLAY | Mexicali | Baja California | Mexicali |
| 634 | Fijo | TOTAL PLAY | Mexicali | Baja California | Mexicali |
| 635 | Fijo | CABLEMAS | Mexicali | Baja California | Mexicali |
| 635 | Fijo | CABLEMAS | Mexicali | Baja California | Mexicali |
| 636 | Fijo | OPENIP | Mexicali | Baja California | Mexicali |
| 636 | Fijo | OPENIP | Mexicali | Baja California | San felipe |