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 |
|---|---|---|---|---|---|
| 518 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 519 | Movil | ESMERO | Matamoros | Tamaulipas | Heroica matamoros |
| 520 | Fijo | ROBOT | Matamoros | Tamaulipas | Heroica matamoros |
| 520 | Fijo | ROBOT | Matamoros | Tamaulipas | Heroica matamoros |
| 520 | Fijo | ROBOT | Matamoros | Tamaulipas | Heroica matamoros |
| 521 | Fijo | OPERBES | Matamoros | Tamaulipas | Heroica matamoros |
| 522 | Fijo | OPERBES | Matamoros | Tamaulipas | Heroica matamoros |
| 523 | Fijo | OPERBES | Matamoros | Tamaulipas | Heroica matamoros |
| 524 | Fijo | OPERBES | Matamoros | Tamaulipas | Heroica matamoros |
| 524 | Fijo | OPERBES | Matamoros | Tamaulipas | Heroica matamoros |
| 525 | Fijo | NGX NETWORKS | Matamoros | Tamaulipas | Heroica matamoros |
| 526 | Fijo | OPERBES | Matamoros | Tamaulipas | Heroica matamoros |
| 527 | Fijo | OPERBES | Matamoros | Tamaulipas | Heroica matamoros |
| 528 | Fijo | OPERBES | Matamoros | Tamaulipas | Heroica matamoros |
| 529 | Fijo | OPERBES | Matamoros | Tamaulipas | Heroica matamoros |
| 530 | Fijo | SERVICE TRENDS | Matamoros | Tamaulipas | Heroica matamoros |
| 531 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 532 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 533 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 534 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 535 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 536 | Movil | TELCEL | Matamoros | Tamaulipas | Heroica matamoros |
| 537 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 538 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 539 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 540 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 541 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 541 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 542 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 543 | Fijo | FLYNODE | Matamoros | Tamaulipas | Heroica matamoros |
| 544 | Fijo | TELECO NETWORKS | Matamoros | Tamaulipas | Heroica matamoros |
| 545 | Fijo | ENTRETENIMIENTO Y TELECOMUNICACIONE | Matamoros | Tamaulipas | Heroica matamoros |
| 546 | Fijo | PROCOM | Matamoros | Tamaulipas | Heroica matamoros |
| 547 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 548 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 548 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 549 | Fijo | TOTAL PLAY | Matamoros | Tamaulipas | Heroica matamoros |
| 549 | Fijo | TOTAL PLAY | Matamoros | Tamaulipas | Heroica matamoros |
| 550 | Fijo | INFORMÁTICA ARQUISYSTEMS | Matamoros | Tamaulipas | Heroica matamoros |
| 551 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 552 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 552 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 553 | Fijo | NEUROTECH | Matamoros | Tamaulipas | Heroica matamoros |
| 554 | Fijo | CENTERNEXT | Matamoros | Tamaulipas | Heroica matamoros |
| 555 | Fijo | TOTAL PLAY | Matamoros | Tamaulipas | Heroica matamoros |
| 555 | Fijo | TOTAL PLAY | Matamoros | Tamaulipas | Heroica matamoros |
| 556 | Fijo | TELCOTRADER | Matamoros | Tamaulipas | Heroica matamoros |
| 557 | Fijo | SANDUR | Matamoros | Tamaulipas | Heroica matamoros |
| 558 | Fijo | GIRNET | Matamoros | Tamaulipas | Heroica matamoros |
| 559 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 560 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 561 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 562 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 563 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 563 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 564 | Fijo | FOREVERFLOW | Matamoros | Tamaulipas | Heroica matamoros |
| 565 | Fijo | KARLA_ALICIA | Matamoros | Tamaulipas | Heroica matamoros |
| 566 | Fijo | ASAL | Matamoros | Tamaulipas | Heroica matamoros |
| 567 | Fijo | ARDO | Matamoros | Tamaulipas | Heroica matamoros |
| 568 | Movil | ALTÁN | Matamoros | Tamaulipas | Heroica matamoros |
| 568 | Movil | ALTÁN | Matamoros | Tamaulipas | Heroica matamoros |
| 569 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 570 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 571 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 572 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 573 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 574 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 575 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 575 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 576 | Movil | YONDER | Matamoros | Tamaulipas | Heroica matamoros |
| 577 | Fijo | ANYNESS | Matamoros | Tamaulipas | Heroica matamoros |
| 578 | Movil | FREEDOMPOP | Matamoros | Tamaulipas | Heroica matamoros |
| 578 | Movil | FREEDOMPOP | Matamoros | Tamaulipas | Heroica matamoros |
| 579 | Fijo | SERVNET | Matamoros | Tamaulipas | Sierrita, la |
| 580 | Fijo | TOTAL PLAY | Matamoros | Tamaulipas | Heroica matamoros |
| 581 | Fijo | SERVICIO DE TELECABLE DE HUEJUTLA | Matamoros | Tamaulipas | Heroica matamoros |
| 582 | Movil | TALENTO NET | Matamoros | Tamaulipas | Heroica matamoros |
| 583 | Fijo | MCM | Matamoros | Tamaulipas | Heroica matamoros |
| 584 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 585 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 586 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 587 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 588 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 589 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 590 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 591 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 592 | Movil | ALTÁN | Matamoros | Tamaulipas | Heroica matamoros |
| 592 | Movil | ALTÁN | Matamoros | Tamaulipas | Heroica matamoros |
| 593 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 593 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 593 | Movil | AT&T | Matamoros | Tamaulipas | Heroica matamoros |
| 594 | Movil | VIRGIN | Matamoros | Tamaulipas | Heroica matamoros |
| 595 | Fijo | DIGITAL COMUNICATIONS | Matamoros | Tamaulipas | Heroica matamoros |
| 596 | Fijo | TELMEX | Matamoros | Tamaulipas | Heroica matamoros |
| 596 | Fijo | TELMEX | Matamoros | Tamaulipas | Heroica matamoros |
| 597 | Fijo | TELECOMMERCE HOLDING | Matamoros | Tamaulipas | Heroica matamoros |
| 598 | Movil | ALTÁN | Matamoros | Tamaulipas | Heroica matamoros |
| 688 | Fijo | TELMEX | Matamoros | Tamaulipas | Heroica matamoros |
| 688 | Fijo | TELMEX | Matamoros | Tamaulipas | Moquetito, el |
| 688 | Fijo | TELMEX | Matamoros | Tamaulipas | Cinco de mayo |