Area Code 618
618 area code is being used for dialing/telecommunication purposes in Illinois, covering 8 major cities and 4 counties, according to (NANP) North American Numbering Plan for 3-digit Numbering Plan Area (NPA) code. All the areas using NPA code 618 is part of CST (Central Standard Time) timezone.
618 Area Code Covers 8 Cities
Check this below table to know 8 major cities (having more than 20,000 population) in Illinois using numbering plan area code 618 for dialing/telecommunication purposes.
| City | ZIP Codes | Population |
|---|---|---|
| Alton, IL | 1 | 25,642 |
| Belleville, IL | 7 | 42,155 |
| Carbondale, IL | 3 | 22,039 |
| Collinsville, IL | 2 | 24,294 |
| Edwardsville, IL | 2 | 26,622 |
| Granite City, IL | 1 | 27,026 |
4 Counties Using 618 as Area Code
618 area code is being used in 4 counties of Illinois for dialing/telecommunication purposes.
43 More NPA Codes Related to Area Code 618
1 or more of these 43 NPA codes are being used in the same or adjacent states of Illinois in the United States.
- 217 Area Code
- 219 Area Code
- 224 Area Code
- 260 Area Code
- 262 Area Code
- 270 Area Code
- 309 Area Code
- 312 Area Code
- 314 Area Code
- 317 Area Code
- 319 Area Code
- 331 Area Code
- 364 Area Code
- 414 Area Code
- 417 Area Code
- 463 Area Code
- 502 Area Code
- 515 Area Code
- 534 Area Code
- 563 Area Code
- 573 Area Code
- 574 Area Code
- 606 Area Code
- 608 Area Code
- 630 Area Code
- 636 Area Code
- 641 Area Code
- 660 Area Code
- 708 Area Code
- 712 Area Code
- 715 Area Code
- 765 Area Code
- 773 Area Code
- 779 Area Code
- 785 Area Code
- 812 Area Code
- 815 Area Code
- 816 Area Code
- 847 Area Code
- 859 Area Code
- 872 Area Code
- 920 Area Code
- 930 Area Code