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 |
|---|---|---|---|---|---|
| 732 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 733 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 734 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 735 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 736 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 737 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 738 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 739 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 740 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 741 | Fijo | INBTEL | Chihuahua | Chihuahua | Chihuahua |
| 741 | Fijo | INBTEL | Aldama | Chihuahua | Juan aldama |
| 742 | Fijo | TELIGENTIA | Chihuahua | Chihuahua | Chihuahua |
| 742 | Fijo | TELIGENTIA | Chihuahua | Chihuahua | Chihuahua |
| 743 | Fijo | TOTAL PLAY | Chihuahua | Chihuahua | Chihuahua |
| 744 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 745 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 746 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 747 | Movil | MEGACABLE | Chihuahua | Chihuahua | Chihuahua |
| 747 | Fijo | MEGACABLE | Chihuahua | Chihuahua | Chihuahua |
| 747 | Fijo | MEGACABLE | Chihuahua | Chihuahua | Chihuahua |
| 748 | Fijo | ROBOT | Chihuahua | Chihuahua | Chihuahua |
| 748 | Fijo | ROBOT | Chihuahua | Chihuahua | Sauz, el |
| 748 | Fijo | ROBOT | Chihuahua | Chihuahua | Chihuahua |
| 748 | Fijo | ROBOT | Chihuahua | Chihuahua | Sauz, el |
| 748 | Fijo | ROBOT | Chihuahua | Chihuahua | Chihuahua |
| 748 | Fijo | ROBOT | Chihuahua | Chihuahua | Sauz, el |
| 748 | Fijo | ROBOT | Chihuahua | Chihuahua | Chihuahua |
| 749 | Fijo | NGX NETWORKS | Chihuahua | Chihuahua | Chihuahua |
| 750 | Fijo | CABLEMAS | Chihuahua | Chihuahua | Chihuahua |
| 751 | Movil | ALTÁN | Chihuahua | Chihuahua | Chihuahua |
| 752 | Movil | ALTÁN | Chihuahua | Chihuahua | Chihuahua |
| 753 | Movil | ALTÁN | Chihuahua | Chihuahua | Chihuahua |
| 754 | Movil | ALTÁN | Chihuahua | Chihuahua | Chihuahua |
| 755 | Movil | ALTÁN | Chihuahua | Chihuahua | Chihuahua |
| 756 | Movil | ALTÁN | Chihuahua | Chihuahua | Chihuahua |
| 757 | Movil | ALTÁN | Chihuahua | Chihuahua | Chihuahua |
| 758 | Movil | ALTÁN | Chihuahua | Chihuahua | Chihuahua |
| 759 | Movil | ALTÁN | Chihuahua | Chihuahua | Chihuahua |
| 760 | Fijo | CABLEMAS | Chihuahua | Chihuahua | Chihuahua |
| 761 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 761 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 762 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 763 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 764 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 765 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 766 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 767 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 768 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 769 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 770 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 771 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 772 | Fijo | TOTAL PLAY | Chihuahua | Chihuahua | Chihuahua |
| 773 | Fijo | CABLEMAS | Chihuahua | Chihuahua | Chihuahua |
| 773 | Fijo | CABLEMAS | Chihuahua | Chihuahua | Chihuahua |
| 773 | Fijo | CABLEMAS | Chihuahua | Chihuahua | Chihuahua |
| 774 | Fijo | FLYNODE | Chihuahua | Chihuahua | Chihuahua |
| 775 | Fijo | CABLEMAS | Chihuahua | Chihuahua | Chihuahua |
| 775 | Fijo | CABLEMAS | Chihuahua | Chihuahua | Chihuahua |
| 775 | Fijo | CABLEMAS | Chihuahua | Chihuahua | Chihuahua |
| 776 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 777 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 777 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 778 | Fijo | CABLEMAS | Chihuahua | Chihuahua | Chihuahua |
| 778 | Fijo | CABLEMAS | Chihuahua | Chihuahua | Chihuahua |
| 778 | Fijo | CABLEMAS | Chihuahua | Chihuahua | Chihuahua |
| 779 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 780 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 780 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 781 | Fijo | TOTAL PLAY | Chihuahua | Chihuahua | Chihuahua |
| 782 | Fijo | NEUROTECH | Chihuahua | Chihuahua | Chihuahua |
| 783 | Fijo | TOTAL PLAY | Chihuahua | Chihuahua | Chihuahua |
| 784 | Fijo | LAYER7 | Chihuahua | Chihuahua | Chihuahua |
| 785 | Movil | CABLEVISIONRED | Chihuahua | Chihuahua | Terrazas estacion f.f.c.c. |
| 786 | Fijo | CABLEMAS | Chihuahua | Chihuahua | Chihuahua |
| 786 | Fijo | CABLEMAS | Chihuahua | Chihuahua | Chihuahua |
| 786 | Fijo | CABLEMAS | Chihuahua | Chihuahua | Chihuahua |
| 787 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 788 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 789 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 790 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 791 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 791 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 792 | Fijo | TOTAL PLAY | Chihuahua | Chihuahua | Chihuahua |
| 793 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 794 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 795 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 796 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 797 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 798 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 799 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 799 | Movil | AT&T | Chihuahua | Chihuahua | Chihuahua |
| 800 | Fijo | CABLEMAS | Chihuahua | Chihuahua | Chihuahua |
| 800 | Fijo | CABLEMAS | Chihuahua | Chihuahua | Chihuahua |
| 801 | Fijo | TELECOMMERCE | Chihuahua | Chihuahua | Chihuahua |
| 802 | Fijo | ARDO | Chihuahua | Chihuahua | Chihuahua |
| 803 | Fijo | SPARKTELECOMM | Chihuahua | Chihuahua | Chihuahua |
| 803 | Fijo | SPARKTELECOMM | Chihuahua | Chihuahua | Chihuahua |
| 803 | Fijo | SPARKTELECOMM | Chihuahua | Chihuahua | Chihuahua |
| 803 | Fijo | SPARKTELECOMM | Chihuahua | Chihuahua | Chihuahua |
| 804 | Fijo | MEGACABLE | Chihuahua | Chihuahua | Chihuahua |