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 |
|---|---|---|---|---|---|
| 507 | Movil | MOVISTAR | Chihuahua | Chihuahua | Chihuahua |
| 508 | Movil | MOVISTAR | Chihuahua | Chihuahua | Chihuahua |
| 509 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 510 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 511 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 511 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 511 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 511 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 512 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 513 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 514 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 515 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 516 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 517 | Fijo | SERVNET | Chihuahua | Chihuahua | Chihuahua |
| 518 | Fijo | DIALOGA | Chihuahua | Chihuahua | Chihuahua |
| 519 | Movil | QBOCEL | Chihuahua | Chihuahua | Chihuahua |
| 520 | Fijo | CONVERGIA | Chihuahua | Chihuahua | Chihuahua |
| 521 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 522 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 522 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 523 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 524 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 524 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 524 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 525 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 526 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 526 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 527 | Fijo | STARSATEL | Chihuahua | Chihuahua | Chihuahua |
| 528 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 529 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 530 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 531 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 532 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 533 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 534 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 535 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 536 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 537 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 538 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 539 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 540 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 541 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 541 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 541 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 541 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 541 | Fijo | TELMEX | Riva Palacio | Chihuahua | Campo sesenta y uno y medio |
| 542 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 542 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 542 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 542 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 542 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 542 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 542 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 542 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 542 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 542 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 543 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 543 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 543 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 543 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 543 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 543 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 543 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 543 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 544 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 545 | Fijo | TELMEX | Chihuahua | Chihuahua | Chihuahua |
| 546 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 547 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 548 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 549 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 550 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 551 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 552 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 553 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 554 | Movil | TELCEL | Chihuahua | Chihuahua | Chihuahua |
| 555 | Movil | FREEDOMPOP | Chihuahua | Chihuahua | Chihuahua |
| 556 | Movil | FREEDOMPOP | Chihuahua | Chihuahua | Chihuahua |
| 556 | Movil | FREEDOMPOP | Chihuahua | Chihuahua | Chihuahua |
| 557 | Movil | ALTÁN | Chihuahua | Chihuahua | Chihuahua |
| 558 | Movil | ALTÁN | Chihuahua | Chihuahua | Chihuahua |
| 559 | Movil | ALTÁN | Chihuahua | Chihuahua | Chihuahua |
| 559 | Fijo | ALTÁN | Chihuahua | Chihuahua | Chihuahua |
| 560 | Fijo | ALTÁN | Chihuahua | Chihuahua | Chihuahua |
| 561 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 562 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 563 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 563 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 564 | Movil | FREEDOMPOP | Chihuahua | Chihuahua | Chihuahua |
| 564 | Movil | FREEDOMPOP | Chihuahua | Chihuahua | Chihuahua |
| 565 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 565 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 566 | Fijo | TOTAL PLAY | Chihuahua | Chihuahua | Chihuahua |
| 567 | Fijo | CABLEMAS | Chihuahua | Chihuahua | Chihuahua |
| 568 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 569 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 569 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 570 | Movil | SERVITRON | Chihuahua | Chihuahua | Chihuahua |
| 571 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 572 | Fijo | MOVISTAR | Chihuahua | Chihuahua | Chihuahua |
| 572 | Movil | MOVISTAR | Chihuahua | Chihuahua | Chihuahua |