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 |
|---|---|---|---|---|---|
| 445 | Movil | CABLEVISIONRED | Celaya | Guanajuato | Celaya |
| 445 | Movil | CABLEVISIONRED | Celaya | Guanajuato | Celaya |
| 445 | Movil | CABLEVISIONRED | Celaya | Guanajuato | Celaya |
| 446 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 447 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 448 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 449 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 450 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 451 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 451 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 452 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 453 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 454 | Fijo | BESTPHONE | Celaya | Guanajuato | Celaya |
| 455 | Fijo | BESTPHONE | Celaya | Guanajuato | Celaya |
| 456 | Fijo | BESTPHONE | Celaya | Guanajuato | Celaya |
| 457 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 458 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 459 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 459 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 460 | Movil | VADSA | Celaya | Guanajuato | Celaya |
| 460 | Fijo | VADSA | Celaya | Guanajuato | Celaya |
| 461 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 462 | Fijo | MAXCOM | Celaya | Guanajuato | Celaya |
| 463 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 464 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 464 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 465 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 466 | Fijo | METRORED | Celaya | Guanajuato | Celaya |
| 466 | Fijo | METRORED | Celaya | Guanajuato | Celaya |
| 467 | Movil | ALTÁN | Celaya | Guanajuato | Celaya |
| 468 | Movil | ALTÁN | Celaya | Guanajuato | Celaya |
| 468 | Movil | ALTÁN | Celaya | Guanajuato | Celaya |
| 469 | Movil | ABIX | Celaya | Guanajuato | Celaya |
| 470 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 471 | Fijo | TELMEX | Celaya | Guanajuato | Presa blanca |
| 471 | Fijo | TELMEX | Celaya | Guanajuato | Arreguin de abajo |
| 471 | Fijo | TELMEX | Celaya | Guanajuato | Arreguin de abajo |
| 471 | Fijo | TELMEX | Celaya | Guanajuato | Celaya |
| 471 | Fijo | TELMEX | Celaya | Guanajuato | Celaya |
| 471 | Fijo | TELMEX | Celaya | Guanajuato | Celaya |
| 471 | Fijo | TELMEX | Celaya | Guanajuato | Celaya |
| 471 | Fijo | TELMEX | Celaya | Guanajuato | Celaya |
| 472 | Fijo | AVANTEL | Celaya | Guanajuato | Celaya |
| 472 | Fijo | AVANTEL | Celaya | Guanajuato | Celaya |
| 473 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 474 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 475 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 476 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 477 | Fijo | MAXCOM | Celaya | Guanajuato | Celaya |
| 478 | Fijo | ALESTRA | Celaya | Guanajuato | Celaya |
| 479 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 480 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 481 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 482 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 483 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 483 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 484 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 485 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 485 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 486 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 487 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 487 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 488 | Fijo | TELMEX | Celaya | Guanajuato | Canoas (congregacion de canoas) |
| 488 | Fijo | TELMEX | Celaya | Guanajuato | Colonia patria nueva |
| 489 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 490 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 491 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 492 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 493 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 494 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 495 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 496 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 497 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 498 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 499 | Movil | ESMERO | Celaya | Guanajuato | Celaya |
| 500 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 501 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 502 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 502 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 503 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 504 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 505 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 506 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 507 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 508 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 509 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 510 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 511 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 512 | Movil | AT&T | Celaya | Guanajuato | Celaya |
| 513 | Fijo | CENTERNEXT | Celaya | Guanajuato | Celaya |
| 514 | Fijo | TELMEX | Celaya | Guanajuato | Celaya |
| 514 | Fijo | TELMEX | Celaya | Guanajuato | Celaya |
| 514 | Fijo | TELMEX | Celaya | Guanajuato | Celaya |
| 514 | Fijo | TELMEX | Celaya | Guanajuato | Celaya |
| 514 | Fijo | TELMEX | Celaya | Guanajuato | Celaya |
| 515 | Fijo | AXTEL | Celaya | Guanajuato | Celaya |
| 516 | Fijo | TOTAL PLAY | Celaya | Guanajuato | Celaya |
| 517 | Fijo | TOTAL PLAY | Celaya | Guanajuato | Celaya |
| 518 | Fijo | TOTAL PLAY | Celaya | Guanajuato | Celaya |
| 519 | Movil | AT&T | Celaya | Guanajuato | Celaya |