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 |
|---|---|---|---|---|---|
| 591 | Fijo | COEFICIENTE | Tampico Alto | Veracruz de Ignacio de la Llave | Tampico alto |
| 592 | Movil | OPERBES | Tampico | Tamaulipas | Tampico |
| 593 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 593 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 593 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 593 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 593 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 594 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 595 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 596 | Fijo | TELMEX | Tampico | Tamaulipas | Tampico |
| 596 | Fijo | TELMEX | Tampico | Tamaulipas | Tampico |
| 597 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 598 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 599 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 599 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 600 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 601 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 601 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 602 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 603 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 604 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 605 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 606 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 607 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 608 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 609 | Fijo | CABLEVISIONRED | Tampico | Tamaulipas | Tampico |
| 610 | Movil | FREEDOMPOP | Tampico | Tamaulipas | Tampico |
| 610 | Movil | FREEDOMPOP | Tampico | Tamaulipas | Tampico |
| 610 | Movil | FREEDOMPOP | Tampico | Tamaulipas | Tampico |
| 610 | Movil | FREEDOMPOP | Tampico | Tamaulipas | Tampico |
| 610 | Movil | FREEDOMPOP | Tampico | Tamaulipas | Tampico |
| 611 | Fijo | CABLEVISIONRED | Altamira | Tamaulipas | Altamira |
| 612 | Fijo | CABLEVISIONRED | Altamira | Tamaulipas | Altamira |
| 613 | Fijo | OPENIP | Altamira | Tamaulipas | Altamira |
| 613 | Fijo | OPENIP | Ciudad Madero | Tamaulipas | Ciudad madero |
| 613 | Fijo | OPENIP | Tampico | Tamaulipas | Tampico |
| 613 | Fijo | OPENIP | Altamira | Tamaulipas | Altamira |
| 613 | Fijo | OPENIP | Ciudad Madero | Tamaulipas | Ciudad madero |
| 613 | Fijo | OPENIP | Tampico | Tamaulipas | Tampico |
| 613 | Fijo | OPENIP | Altamira | Tamaulipas | Altamira |
| 613 | Fijo | OPENIP | Ciudad Madero | Tamaulipas | Ciudad madero |
| 614 | Movil | CABLEVISIONRED | Tampico | Tamaulipas | Tampico |
| 614 | Fijo | CABLEVISIONRED | Tampico | Tamaulipas | Tampico |
| 615 | Movil | VADSA | Tampico | Tamaulipas | Tampico |
| 615 | Fijo | VADSA | Tampico | Tamaulipas | Tampico |
| 616 | Fijo | INBTEL | Tampico | Tamaulipas | Tampico |
| 616 | Fijo | INBTEL | Altamira | Tamaulipas | Altamira |
| 616 | Fijo | INBTEL | Tampico | Tamaulipas | Tampico |
| 616 | Fijo | INBTEL | Altamira | Tamaulipas | Altamira |
| 616 | Fijo | INBTEL | Tampico | Tamaulipas | Tampico |
| 616 | Fijo | INBTEL | Tampico | Tamaulipas | Tampico |
| 617 | Movil | CELMAX | Tampico | Tamaulipas | Tampico |
| 617 | Movil | CELMAX | Tampico | Tamaulipas | Tampico |
| 618 | Fijo | CABLEVISIONRED | Tampico | Tamaulipas | Tampico |
| 618 | Fijo | CABLEVISIONRED | Tampico | Tamaulipas | Tampico |
| 619 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 620 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 621 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 622 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 623 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 623 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 624 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 625 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 625 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 626 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 627 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 628 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 628 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 629 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 630 | Movil | OMETEL | Tampico | Tamaulipas | Tampico |
| 631 | Fijo | CABLEVISIONRED | Tampico | Tamaulipas | Tampico |
| 631 | Fijo | CABLEVISIONRED | Altamira | Tamaulipas | Altamira |
| 632 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 632 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 633 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 634 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 635 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 635 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 636 | Movil | ALTÁN | Tampico | Tamaulipas | Tampico |
| 637 | Movil | ALTÁN | Tampico | Tamaulipas | Tampico |
| 638 | Movil | ALTÁN | Tampico | Tamaulipas | Tampico |
| 639 | Movil | ABIX | Tampico | Tamaulipas | Tampico |
| 640 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 641 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 642 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 643 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 644 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 644 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 645 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 646 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 647 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 648 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 649 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 649 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 650 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 651 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 651 | Movil | AT&T | Tampico | Tamaulipas | Tampico |
| 652 | Fijo | CABLEVISIONRED | Altamira | Tamaulipas | Altamira |
| 652 | Fijo | CABLEVISIONRED | Altamira | Tamaulipas | Altamira |
| 653 | Movil | AT&T | Tampico | Tamaulipas | Tampico |