Area code 224 calling hours: can you call now?
Area code 224 serves Northbrook, Arlington Heights, and Des Plaines in Illinois. It is on Central time. Clocks move for daylight saving time in March and November.
- Debt collection: federal — Presumed convenient 8 a.m.-9 p.m. local time at the consumer's location, any day. Illinois: Presumed convenient 8 a.m.-9 p.m. in the debtor's local time, any day (mirrors federal law). Autodialed or prerecorded calls: Autodialer calls that play a prerecorded message only between 9 a.m. and 9 p.m.
- Telemarketing: federal — 8 a.m.-9 p.m. local time at the called party's location, any day. Illinois: No sales solicitation calls between 9 p.m. and 8 a.m., any day. Autodialed or prerecorded calls: Autodialer calls that play a prerecorded message only between 9 a.m. and 9 p.m.
Live check: area code 224
Turn on JavaScript for the live check. The rules table below lists every window that applies to 224.
| Zone | Local time | Rule | Window |
|---|
Not checked here: consent, Do-Not-Call lists, Reg F call frequency (7 calls in 7 days), cease-communication requests or attorney representation, reassigned numbers, and whether the consumer has told you a time is inconvenient.
Calling-hour rules for 224
Hours are local time at the person you are calling. When federal and Illinois rules differ, the narrower window governs; the live check applies every row at once.
| Rule set | Debt collection | Telemarketing |
|---|---|---|
| Federal | Presumed convenient 8 a.m.-9 p.m. local time at the consumer's location, any day. Every day 8:00 a.m.–9:00 p.m. 15 U.S.C. § 1692c(a)(1) · 12 CFR § 1006.6(b)(1)(i) (Regulation F) · Reg F Official Interpretation, comment 6(b)(1)(i)-2 (consumer's location) · 12 CFR § 1006.14(b)(2)
No federal Sunday or holiday ban, but a consumer's statement that a day or time is inconvenient makes calls then unlawful. The 8-9 window is a default presumption that the consumer's prior consent (given directly to the collector) or a court can override. | 8 a.m.-9 p.m. local time at the called party's location, any day. Every day 8:00 a.m.–9:00 p.m. 47 CFR § 64.1200(c)(1) (TCPA rules) · 16 CFR § 310.4(c) (Telemarketing Sales Rule)
TSR § 310.4(c) allows calls outside 8-9 with the person's prior consent; the TCPA time rule in § 64.1200(c)(1) has no consent exception for telephone solicitations as defined. |
| Illinois | Presumed convenient 8 a.m.-9 p.m. in the debtor's local time, any day (mirrors federal law). Every day 8:00 a.m.–9:00 p.m. 205 ILCS 740/9.2(a)(1) and 740/9(a)(19)(A)
Calls made with an autodialer that plays a prerecorded message are separately barred between 9 p.m. and 9 a.m. under the Automatic Telephone Dialers Act (815 ILCS 305/15(a)), which is not limited to sales calls. Autodialed/prerecorded: Autodialer calls that play a prerecorded message only between 9 a.m. and 9 p.m. Every day 9:00 a.m.–9:00 p.m. 815 ILCS 305/15(a) (autodialers) The statute does not say whose local time applies. | No sales solicitation calls between 9 p.m. and 8 a.m., any day. Every day 8:00 a.m.–9:00 p.m. 815 ILCS 413/15(a) · 815 ILCS 305/15(a) (autodialers)
Autodialer (prerecorded-message) calls are restricted further to 9 a.m.-9 p.m. (815 ILCS 305/15(a)); the schema allows one rule per purpose, so that later 9 a.m. start for automated calls is not enforced here. The statute does not say whose local time applies. Autodialed/prerecorded: Autodialer calls that play a prerecorded message only between 9 a.m. and 9 p.m. Every day 9:00 a.m.–9:00 p.m. 815 ILCS 305/15(a) (autodialers) The statute does not say whose local time applies. |
Exchanges and time zones
Every assigned exchange in 224 sits in Central time, so the area code alone settles the zone for a landline. The 25 largest rate centers by exchange count:
| Rate center | Exchanges |
|---|---|
| Northbrook, IL | 71 |
| Arlington Heights, IL | 69 |
| Des Plaines, IL | 48 |
| Elgin, IL | 44 |
| Waukegan, IL | 38 |
| Algonquin, IL | 35 |
| Deerfield, IL | 20 |
| Barrington, IL | 19 |
| Elk Grove, IL | 18 |
| Glenview, IL | 14 |
| Wheeling, IL | 14 |
| Skokie, IL | 13 |
| Libertyville, IL | 12 |
| Round Lake, IL | 12 |
| Lake Forest, IL | 11 |
| Palatine, IL | 11 |
| Roselle, IL | 11 |
| Evanston, IL | 10 |
| Mundelein, IL | 10 |
| Half Day, IL | 8 |
| Zion, IL | 8 |
| Antioch, IL | 7 |
| Dundee, IL | 7 |
| Fox Lake, IL | 7 |
| Huntley, IL | 7 |
Related area codes
Overlay codes — same territory as 224, same rules: 847
Other area codes in Illinois:
- 217 Springfield
- 309 Peoria
- 312 Chicago Zone 01
- 331 Aurora
- 447 Springfield
- 464 Forest
- 618 Collinsville
- 630 Roselle
- 708 La Grange
- 730 Centralia
- 773 Chicago Zone 03
- 779 Rockford
- 815 Rockford
- 861
- 872 Chicago Zone 01
Why area code alone is not enough
- Mobile numbers travel with their owners, and a ported number keeps its original 224 area code and exchange. A 224 number tells you where the line was assigned, not where the person is today.
- Under Regulation F, when you know of more than one location for a consumer — a mailing address in one zone, an area code in another — the time must be convenient in every one of them. Use the address-state field above to add the zones you know about.
- Call only when the window is open in every location you know about, and stop calling at times the consumer tells you are inconvenient, whatever the clock says.
Questions
What time can you call area code 224?
Area code 224 is in Illinois, on Central time. Debt collection: federal — Presumed convenient 8 a.m.-9 p.m. local time at the consumer's location, any day. Illinois: Presumed convenient 8 a.m.-9 p.m. in the debtor's local time, any day (mirrors federal law). Autodialed or prerecorded calls: Autodialer calls that play a prerecorded message only between 9 a.m. and 9 p.m. Telemarketing: federal — 8 a.m.-9 p.m. local time at the called party's location, any day. Illinois: No sales solicitation calls between 9 p.m. and 8 a.m., any day. Autodialed or prerecorded calls: Autodialer calls that play a prerecorded message only between 9 a.m. and 9 p.m.
What time zone is area code 224?
Area code 224 is entirely in Central time. Clocks move for daylight saving time in March and November.
Can a debt collector call a 224 number on Sunday?
Sunday is not singled out: Illinois's debt-collection hours are every day 8:00 a.m.–9:00 p.m., and the federal 8 a.m.–9 p.m. window also applies. A consumer can still tell a collector that Sunday is inconvenient.
Is the 224 area code enough to know the person's local time?
No. Mobile numbers move with their owners and ported numbers keep their area code, so a 224 number may belong to someone in another time zone. If you know other locations for the person, the call should fit the window in all of them.
Sources
Exchange and rate-center data: NANPA CO Code Assignments (utilized, all states) (retrieved 2026-10-07); NANPA NPA listing (area code information) (retrieved 2026-10-07); NANPA rate centers by state (retrieved 2026-10-07); U.S. Census Bureau 2024 Gazetteer (places) (retrieved 2026-10-07); U.S. Census Bureau 2024 Gazetteer (county subdivisions) (retrieved 2026-10-07); U.S. Census Bureau 2024 cartographic boundary file (counties, 1:500k) (retrieved 2026-10-07); USGS GNIS Domestic Names (split-zone states only) (retrieved 2026-10-07); 49 CFR Part 71 - Standard Time Zone Boundaries (retrieved 2026-10-07). Statutes and regulations: 15 U.S.C. § 1692c(a)(1), 12 CFR § 1006.6(b)(1)(i) (Regulation F), Reg F Official Interpretation, comment 6(b)(1)(i)-2 (consumer's location), 12 CFR § 1006.14(b)(2), 47 CFR § 64.1200(c)(1) (TCPA rules), 16 CFR § 310.4(c) (Telemarketing Sales Rule), and the state citations in the rules table.
This page is general information, not legal advice. Laws change and some rules depend on who is calling and why; confirm with counsel. Rules last reviewed 2026-10-07.