Illinois Phone Prefixes in 331-2XX Area Code
Phone Prefixes in the 331-2XX Area Code
| Prefix | Usage | Primary City |
|---|---|---|
| (331) 225 | Wireless | Elmhurst |
| (331) 221 | Landline | Elmhurst |
| (331) 210 | Landline | Saint Charles |
| (331) 212 | Landline | Aurora |
| (331) 209 | Wireless | Elmhurst |
| (331) 214 | Wireless | Downers Grove |
| (331) 202 | Wireless | Elmhurst |
| (331) 229 | Wireless | Naperville |
| (331) 245 | Wireless | Bartlett |
| (331) 240 | Landline | West Chicago |
| (331) 251 | Wireless | Downers Grove |
| (331) 250 | Wireless | Aurora |
| (331) 213 | Wireless | Naperville |
| (331) 234 | Wireless | Sugar Grove |
| (331) 207 | Landline | Yorkville |
| (331) 201 | Wireless | Downers Grove |
| (331) 248 | Landline | Geneva |
| Prefix | Usage | Primary City |
|---|---|---|
| (331) 204 | Landline | Bartlett |
| (331) 254 | Unknown | |
| (331) 220 | Wireless | Aurora |
| (331) 222 | Wireless | Saint Charles |
| (331) 262 | Wireless | Aurora |
| (331) 216 | Wireless | Oswego |
| (331) 223 | Wireless | Saint Charles |
| (331) 281 | Landline | Naperville |
| (331) 203 | Wireless | Aurora |
| (331) 215 | Wireless | Naperville |
| (331) 208 | Wireless | Aurora |
| (331) 228 | Wireless | Saint Charles |
| (331) 256 | Wireless | Aurora |
| (331) 205 | Wireless | Aurora |
| (331) 200 | Wireless | Bartlett |
| (331) 218 | Wireless | Wheaton |
| (331) 206 | Wireless | Aurora |
More 3XX Area Codes Phone Numbers
