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 |
|---|---|---|---|---|---|
| 100 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 100 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 100 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 100 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 101 | Movil | MOVISTAR | San José Iturbide | Guanajuato | San jose iturbide |
| 101 | Movil | MOVISTAR | San José Iturbide | Guanajuato | San jose iturbide |
| 102 | Fijo | TELMEX | Doctor Mora | Guanajuato | Noria, la |
| 102 | Fijo | TELMEX | Colón | Querétaro | Ajuchitlan |
| 103 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 103 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 103 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 103 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 103 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 104 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 104 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 104 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 104 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 104 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 105 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 105 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 105 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 105 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 106 | Fijo | AXTEL | San José Iturbide | Guanajuato | San jose iturbide |
| 107 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 107 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 108 | Movil | MOVISTAR | San José Iturbide | Guanajuato | San jose iturbide |
| 109 | Fijo | TELMEX | San José Iturbide | Guanajuato | San jose iturbide |
| 109 | Fijo | TELMEX | San José Iturbide | Guanajuato | Puerto de carroza |
| 109 | Fijo | TELMEX | Victoria | Guanajuato | Victoria |
| 110 | Movil | MOVISTAR | San José Iturbide | Guanajuato | San jose iturbide |
| 111 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 112 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 112 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 113 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 113 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 114 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 115 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 115 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 116 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 116 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 117 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 118 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 118 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 119 | Movil | MOVISTAR | San José Iturbide | Guanajuato | San jose iturbide |
| 120 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 120 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 120 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 121 | Fijo | TV REY | Colón | Querétaro | Colon |
| 122 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 122 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 123 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 124 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 124 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 125 | Movil | MOVISTAR | San José Iturbide | Guanajuato | San jose iturbide |
| 125 | Movil | MOVISTAR | San José Iturbide | Guanajuato | San jose iturbide |
| 126 | Fijo | ALESTRA | San José Iturbide | Guanajuato | San jose iturbide |
| 127 | Movil | MOVISTAR | San José Iturbide | Guanajuato | San jose iturbide |
| 127 | Movil | MOVISTAR | San José Iturbide | Guanajuato | San jose iturbide |
| 128 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 129 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 129 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 130 | Movil | QBOCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 131 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 131 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 132 | Movil | CELMAX | San José Iturbide | Guanajuato | San jose iturbide |
| 132 | Movil | CELMAX | San José Iturbide | Guanajuato | San jose iturbide |
| 133 | Fijo | IENTC | San José Iturbide | Guanajuato | San jose iturbide |
| 133 | Fijo | IENTC | Doctor Mora | Guanajuato | Doctor mora |
| 133 | Fijo | IENTC | Colón | Querétaro | Colon |
| 133 | Movil | IENTC | San José Iturbide | Guanajuato | San jose iturbide |
| 134 | Movil | MOVISTAR | San José Iturbide | Guanajuato | San jose iturbide |
| 135 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 135 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 136 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 136 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 137 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 137 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 138 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 139 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 139 | Movil | TELCEL | San José Iturbide | Guanajuato | San jose iturbide |
| 140 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 140 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 140 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 141 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 141 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 142 | Fijo | UC TELECOM | Colón | Querétaro | Blanco, el |
| 143 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 143 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 144 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 144 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 145 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 146 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 146 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 146 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 147 | Fijo | DIRECTO | Colón | Querétaro | Blanco, el |
| 147 | Fijo | DIRECTO | Colón | Querétaro | Blanco, el |
| 147 | Fijo | DIRECTO | Colón | Querétaro | Blanco, el |
| 148 | Movil | SERVITRON | San José Iturbide | Guanajuato | San jose iturbide |
| 149 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |
| 150 | Movil | AT&T | San José Iturbide | Guanajuato | San jose iturbide |