730 area code
Centralia area, Central Time.Area code 730 covers Centralia, Belleville, Herrin and 239 more places in Illinois, on Central Time. 618 covers the same area.
Right now in Centralia
Central Time (CST, UTC-6; CDT, UTC-5 in summer)
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
Small talk
Calling a lot of them? RegieGO dials up to five lines at once. See the dialer
Where 730 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 730 has 242. Each one's share is how many 730 numbers start there. Its biggest metro area is St. Louis, MO-IL.
- Centralia11%
- Belleville10%
- Herrin10%
- Olney8%
- Carbondale7%
- Collinsville4%
- Cairo2%
Also: Alton, East Saint Louis, Granite City, Marion, Mount Vernon, Benton, O'Fallon, Anna, Murphysboro, Pinckneyville, Salem, Sparta + 223 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 730 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 730 number to them, since you can't tell a work line from a personal cell.
What applies to 730Every day, 8 AM to 9 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
730 and 618
730 went into service on July 7, 2023. 730 and 618 cover the same area, so new numbers can get either code and neighbors can have different area codes. 730 holds 14% of the area's exchanges; 618 holds the most. Local calls take all 10 digits.
- 1947618 overlay
- 2023730 starts
Source: NANPA area code database
Calling a list of 730 numbers?
Paste it into the free phone number validator. It checks every number, finds each one's time zone and sorts the list by who you can call right now.
730 area code FAQ
What area code is 730?
730 is an Illinois area code for Centralia, Belleville, Herrin, Olney and 238 more places.
What time zone is the 730 area code in?
Central Time (CST, UTC-6; CDT, UTC-5 in summer).
Is 618 the same as 730?
Same area, different code. 730 and 618 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 730 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 730 area code start?
On July 7, 2023.
Calling 730 numbers? Reach more of them.
RegieGO researches every account and dials up to five lines at once while you talk. 250 free credits, no credit card.