Area code 608 – Wisconsin
608 has served Wisconsin since 1955. All but a handful of its 786 number blocks are allocated (785 of 786), so it is effectively exhausted. No carrier dominates: Other CLEC / VoIP 20.6%, AT&T 19.1%, UScellular 9.7%. It shares its geography with overlay codes 353, so local calls take all ten digits. FTC complaints naming a 608 caller ID totalled 498 in the 33 days to 30 October 2026 (212th of 422 ranked codes). Numbers are spread across 159 rate centers, which is typical of a mostly rural code.
Who holds 608 number blocks
Share of the 785 assigned NXX blocks (99.9% of the 786 possible), across 73 carriers. This is share of number blocks, not of subscribers.
- Other CLEC / VoIP28.3%
- AT&T19.1%
- Brightspeed9.2%
- Verizon7.4%
- Frontier7.3%
- Onvoy6.4%
- Lumen5.1%
- T-Mobile4.7%
- Charter3.9%
- TDS2.8%
- Bandwidth1.8%
- Windstream1.3%
- Spok0.6%
- American Messaging0.5%
- Peerless0.5%
- Twilio0.4%
- Telnyx0.3%
- Dish0.3%
- Comcast0.1%
- Vonage0.1%
Spam complaints naming 608
FTC Do Not Call complaints where the caller ID was a 608 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 608
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 159.
Timeline
- 1955 608 goes into service in Wisconsin.
More about 608
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 608
What state is area code 608?
Wisconsin. It covers the same area as 353/608.
Can I still get a 608 number?
Only from recycled stock. 785 of the 786 available blocks are already allocated, so new numbers in the area normally come from the overlay codes (353/608).
Is a call from 608 a scam?
Not by itself. 608 drew 498 FTC complaints in the 33 days to 30 October 2026, 212th 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 608 numbers?
Other CLEC / VoIP holds the largest share of assigned number blocks at 20.6%. 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 608?
Yes – ten digits for local calls in 608, 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.