Area code 447 – Illinois
447 has served Illinois since 2021, split from 217. 221 of its 786 number blocks are allocated (28%). Other CLEC / VoIP is the largest holder with 41.6% of blocks, ahead of Onvoy / Inteliquent at 26.2%. It shares its geography with overlay codes 217, so local calls take all ten digits. Spam complaints are comparatively rare: 144 in the 33 days to 30 October 2026, 361st of the 422 codes with five or more complaints.
Who holds 447 number blocks
Share of the 221 assigned NXX blocks (28.1% of the 786 possible), across 32 carriers. This is share of number blocks, not of subscribers.
- Other CLEC / VoIP36.2%
- Onvoy26.2%
- AT&T21.3%
- Charter3.6%
- Dish3.2%
- Bandwidth1.8%
- Twilio1.8%
- T-Mobile1.8%
- Windstream0.9%
- Verizon0.9%
- Telnyx0.5%
- Peerless0.5%
- TPx0.5%
- 8x80.5%
- VoIP Innovations0.5%
Spam complaints naming 447
FTC Do Not Call complaints where the caller ID was a 447 number, 28 Sep – 30 Oct 2026 (33 days). Caller IDs on spam calls are frequently spoofed, so these are complaints about the code, not calls proven to originate in it.
Rate centers in 447
NANPA allocates number blocks to rate centers and records their names abbreviated to ten characters, so these are NANPA's codes rather than place names – CHAMPAURBN is Champaign-Urbana, NWYRCYZN01 is a New York City zone. We show them unchanged instead of guessing at the full names. Showing the largest 5 of 119.
Timeline
- 2021 447 goes into service, split from or overlaid on 217.
More about 447
Separate pages for the questions that need their own answer: what time it is there, what the complaint data says, who holds the number blocks, and how the code compares with the one it shares its area with.
Frequently asked about 447
What state is area code 447?
Illinois. It covers the same area as 217/447.
Is a call from 447 a scam?
Not by itself. 447 drew 144 FTC complaints in the 33 days to 30 October 2026, 361st of 422 ranked codes – mid-pack or lower. Spam callers spoof caller IDs, so the only useful check is the full number.
Which carrier owns 447 numbers?
Other CLEC / VoIP holds the largest share of assigned number blocks at 41.6%. The rest is spread across 3 other carriers. This is share of number blocks, not of subscribers – people keep their numbers when they switch carriers.
Do I need to dial 10 digits in 447?
Yes – ten digits for local calls in 447, because it shares its area with another code.
Sources and verification
- NANPA – NPA Database (npa_report.csv), file date 11/01/2026, retrieved Nov 1, 2026
- NANPA – CO Code Assignment Records, All States (utilized), file updated 11/01/2026, retrieved Nov 1, 2026
- FTC – Do Not Call Reported Calls Data, 25 daily files 28 Sep – 30 Oct 2026, retrieved Nov 1, 2026
NANPA dialing note for this code: “10D”. Reviewed by the data desk. Spotted an error? Request a correction.