Cities in area code 730
Area code 730 serves 63 localities in Illinois, led by Centralia, Herrin, Belleville. The table lists every rate center — the billing locality each prefix is anchored to — with its share of the code's 119 active prefixes.
Centralia, Herrin, Belleville, Olney, Carbondale, Collinsville, Cairo and Alton hold the largest prefix inventories; and 54 smaller communities down to single-prefix localities. Each locality below links to its rate-center page with the full prefix list.
Metropolitan coverage: 19 rate centers belong to FCC top-100 metro areas.
Overlap note: 63 localities are shared with other area codes, so a neighbor's number may differ in its first three digits.
Clock-wise the coverage is Central.
A caller's real location can differ: numbers port between carriers and follow their owners when they move. Use the prefix tables to see where a specific number block was issued.
| Locality (rate center) | Active prefixes | Metro area | All codes serving it |
|---|---|---|---|
| Centralia | 13 | St. Louis, MO-IL | 618, 730 |
| Herrin | 12 | — | 618, 730 |
| Belleville | 12 | St. Louis, MO-IL | 618, 730 |
| Olney | 10 | — | 618, 730 |
| Carbondale | 7 | — | 618, 730 |
| Collinsville | 5 | St. Louis, MO-IL | 618, 730 |
| Cairo | 2 | — | 618, 730 |
| Alton | 2 | St. Louis, MO-IL | 618, 730 |
| East Saint Louis | 2 | St. Louis, MO-IL | 618, 730 |
| Kaskaskia | 1 | — | 618, 730 |
| Christopher | 1 | — | 618, 730 |
| Raleigh Galatia | 1 | — | 618, 730 |
| Shawneetown | 1 | — | 618, 730 |
| Villa Ridge | 1 | — | 618, 730 |
| Dongola | 1 | — | 618, 730 |
| Ridgway | 1 | — | 618, 730 |
| Iuka | 1 | — | 618, 730 |
| Brussels | 1 | St. Louis, MO-IL | 618, 730 |
| Bellmont | 1 | — | 618, 730 |
| Ina | 1 | — | 618, 730 |
| Kell | 1 | — | 618, 730 |
| Kinmundy | 1 | — | 618, 730 |
| Mulberry Grove | 1 | St. Louis, MO-IL | 618, 730 |
| Patoka | 1 | St. Louis, MO-IL | 618, 730 |
| Shattuc | 1 | St. Louis, MO-IL | 618, 730 |
| Saint Peter | 1 | — | 618, 730 |
| Woodburn | 1 | St. Louis, MO-IL | 618, 730 |
| Brookport | 1 | — | 618, 730 |
| De Soto | 1 | — | 618, 730 |
| Goreville | 1 | — | 618, 730 |
| Karnak | 1 | — | 618, 730 |
| McClure | 1 | — | 618, 730 |
| Murphysboro | 1 | — | 618, 730 |
| Troy | 1 | St. Louis, MO-IL | 618, 730 |
| Pinckneyville | 1 | — | 618, 730 |
| Mount Vernon | 1 | — | 618, 730 |
| O'fallon | 1 | St. Louis, MO-IL | 618, 730 |
| Paulton | 1 | — | 618, 730 |
| Sesser | 1 | — | 618, 730 |
| Stonefort | 1 | — | 618, 730 |
| Cobden | 1 | — | 618, 730 |
| Joppa | 1 | — | 618, 730 |
| Zeigler | 1 | — | 618, 730 |
| Salem | 1 | — | 618, 730 |
| Bluford | 1 | — | 618, 730 |
| Hamel | 1 | St. Louis, MO-IL | 618, 730 |
| Olive Branch | 1 | — | 618, 730 |
| Sparta | 1 | — | 618, 730 |
| Rice | 1 | — | 618, 730 |
| Oakdale | 1 | — | 618, 730 |
| Columbia | 1 | St. Louis, MO-IL | 618, 730 |
| Red Bud | 1 | St. Louis, MO-IL | 618, 730 |
| Benton | 1 | — | 618, 730 |
| Creal Springs | 1 | — | 618, 730 |
| Cypress | 1 | — | 618, 730 |
| Dix | 1 | — | 618, 730 |
| Birds | 1 | — | 618, 730 |
| Pittsburg | 1 | St. Louis, MO-IL | 618, 730 |
| Chesterfield Rockbridge | 1 | St. Louis, MO-IL | 618, 730 |
| Keyesport | 1 | St. Louis, MO-IL | 618, 730 |
| Carlyle | 1 | St. Louis, MO-IL | 618, 730 |
| Anna | 1 | — | 618, 730 |
| Marion | 1 | — | 618, 730 |
FAQ
What is the biggest city in area code 730?
Centralia holds the most active prefixes (13), making it the code's largest numbering locality.
How many places does 730 cover?
63 rate centers in Illinois hold active 730 prefixes, from Centralia down to communities with a single prefix.
Does a 730 number guarantee the caller lives in one of these places?
No — the tables show where number blocks were issued. Porting and VoIP let people keep or acquire numbers anywhere.