Active Prefixes in Area Code 636
| Prefix | Primary City | Phone Type | Company |
|---|---|---|---|
| 636-936-#### | Harvester | Landline Numbers | Southwestern Bell... |
| 636-937-#### | Crystal City | Landline Numbers | Southwestern Bell... |
| 636-938-#### | Eureka | Landline Numbers | Southwestern Bell... |
| 636-939-#### | Harvester | Landline Numbers | Southwestern Bell... |
| 636-940-#### | Saint Charles | Landline Numbers | Southwestern Bell... |
| 636-942-#### | Antonia | Landline Numbers | Southwestern Bell... |
| 636-944-#### | Fletcher | Landline Numbers | Southwestern Bell... |
| 636-946-#### | Saint Charles | Landline Numbers | Southwestern Bell... |
| 636-947-#### | Saint Charles | Landline Numbers | Southwestern Bell... |
| 636-948-#### | Antonia | Landline Numbers | Southwestern Bell... |
| 636-949-#### | Saint Charles | Landline Numbers | Southwestern Bell... |
| 636-970-#### | Saint Peters | Landline Numbers | Centurytel Missouri ... |
| 636-978-#### | O Fallon | Landline Numbers | Centurytel Missouri ... |
| 636-980-#### | O Fallon | Landline Numbers | Centurytel Missouri ... |
| 636-987-#### | Defiance | Landline Numbers | Centurytel Missouri ... |
Area Code 636 Introduction
| Area Code: | 636 |
| Country: | United States |
| State/Province: | Missouri - MO |
| Major City: | Harvester |
| Time Zone: | Central |
| Average property | $146K |
| Average age | 61 y/o |
| Average assets | $86.9K |
| Population density | 69,704 sq mi (180,533 km2) |
| Population | 6,083,672 |
| latitude Longitude: | |
| 36° 0′ N to 40° 37′ N / 89° 6′ W to 95° 46′ W | |
| About 636 : | |
| The 636 Area Code (or Area Code 636) is located in the state of MO. Area Code 636 is one of the 269 3-digit telephone area codes in the USA. It covers roughly 870 thousand unique phone numbers and 3.47 million individuals near the city of Ballwin Area code 636 was put into service. Area code 636 was created from a split of area code 314. |
|
| Major cities or places | |
| Ballwin, MO>Chesterfield, MO>O'fallon, MO>St. Charles, MO>St. Peters, MO>Wildwood, MO | |