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 |
|---|---|---|---|---|---|
| 138 | Fijo | DIRECTO | Tamuín | San Luis Potosí | Palmas, las |
| 139 | Movil | SERVITRON | Tamuín | San Luis Potosí | Tamuin |
| 139 | Movil | SERVITRON | Xilitla | San Luis Potosí | Xilitla |
| 140 | Fijo | UC TELECOM | Tamuín | San Luis Potosí | Palmas, las |
| 141 | Fijo | TV REY | Tamuín | San Luis Potosí | Palmas, las |
| 142 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 143 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 144 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 145 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 145 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 146 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 147 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 148 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 149 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 150 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 151 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 151 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 152 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 153 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 154 | Fijo | VINOC | Tamuín | San Luis Potosí | Tamuin |
| 155 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 156 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 157 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 158 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 159 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 160 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 160 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 161 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 162 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 163 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 164 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 165 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 166 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 167 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 168 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 168 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 169 | Fijo | COEFICIENTE | El Higo | Veracruz de Ignacio de la Llave | Higo, el |
| 170 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 171 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 172 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 173 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 174 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 174 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 175 | Movil | FREEDOMPOP | Tamuín | San Luis Potosí | Tamuin |
| 175 | Movil | FREEDOMPOP | Tamuín | San Luis Potosí | Tamuin |
| 176 | Movil | VADSA | Tamuín | San Luis Potosí | Tamuin |
| 176 | Fijo | VADSA | Tamuín | San Luis Potosí | Tamuin |
| 177 | Movil | TELCEL | Tamuín | San Luis Potosí | Tamuin |
| 177 | Movil | TELCEL | Tamuín | San Luis Potosí | Tamuin |
| 177 | Movil | TELCEL | Xilitla | San Luis Potosí | Xilitla |
| 178 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 179 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 179 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 180 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 181 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 182 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 182 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 183 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 184 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 185 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 186 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 187 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 187 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 188 | Fijo | CONVERGIA | Axtla de Terrazas | San Luis Potosí | Axtla de terrazas |
| 189 | Fijo | MCM | Tamuín | San Luis Potosí | Tamuin |
| 190 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 191 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 192 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 193 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 194 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 195 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 196 | Fijo | INBTEL | Tamuín | San Luis Potosí | Tamuin |
| 197 | Movil | TELCEL | Tamuín | San Luis Potosí | Tamuin |
| 197 | Movil | TELCEL | Xilitla | San Luis Potosí | Xilitla |
| 198 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 199 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 200 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 201 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 202 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 203 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 204 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 205 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 206 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 207 | Movil | CORPORACIÓN NOVAVISIÓN | Tamuín | San Luis Potosí | Tamuin |
| 208 | Movil | TELCEL | Xilitla | San Luis Potosí | Xilitla |
| 209 | Fijo | OPERBES | Tamuín | San Luis Potosí | Tamuin |
| 210 | Movil | ALTÁN | Xilitla | San Luis Potosí | Xilitla |
| 210 | Movil | ALTÁN | Xilitla | San Luis Potosí | Xilitla |
| 211 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 212 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 213 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 214 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 215 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 216 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 217 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 217 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 218 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 219 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 220 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |
| 221 | Movil | AT&T | Tamuín | San Luis Potosí | Tamuin |