734 Area Code: Ann Arbor, Michigan
Area code 734 serves Ann Arbor, Livonia and Wayne, Michigan in the Eastern time zone, in service since 1997. Consumers have filed 3,660 unwanted-call complaints against 3,078 different 734 numbers, 398 of them with the FTC in the last 30 days. Look up the exact number that called you below.
Area code 734 at a glance
- State
- Michigan
- Main cities
- Ann Arbor, Livonia, Wayne, Ypsilanti, Plymouth, Monroe + 25 more
- Counties
- Wayne County, Washtenaw County, Monroe County, Livingston County
- Local time
- —Eastern
- In service since
- December 13, 1997
- Split from
- 313
- Overlay code
- 679 (2025)
- Local dialing
- 10 digits (area code + number)
- Exchanges
- 33 rate centers, 701 prefixes
Sources: NANPA area code and central office code records (refreshed weekly); cities and counties matched from US Census Bureau and USGS place names.
Reported 734 numbers
No single 734 number has enough complaints yet for a full report page, so none are listed. Look up the exact number that called you: the lookup works on every US number, whether or not it has complaint history.
What calls from 734 numbers are about
1,563 FTC Do Not Call complaints about 734 numbers since Jul 24. The most common named subject is impostor calls (people pretending to be a government agency, a business or family), at 26% of complaints (29% of those were recorded messages). Overall, 50% of callers who answered said the call was a robocall.
FTC complaint subjects
- Other / unspecified46330%
- Impostor (government, business, family)41126%
- Debt reduction23915%
- Warranties & protection plans1147%
- No subject given1067%
- Dropped call / no message1016%
- Medical & prescriptions745%
FCC complaints by call type, last 2 years
- Prerecorded Voice11648%
- Live Voice9137%
- Text Message3615%
15% of recent FCC complaints about 734 numbers are about text messages, not calls.
When 734 spam calls come in
29% of complaints that give a call time describe calls between 10am and 1pm. 94% came Monday to Friday, most on Mondays, the pattern of call-center robocall campaigns that run on business hours. Times are as consumers reported them to the FTC.
By hour of the day
By day of the week
Is it getting worse?
424 FTC complaints about 734 numbers in the last four weeks, down 32% on the four weeks before. FCC complaints about 734 numbers peaked in 2018 (363); the FTC's daily Do Not Call data has carried most of the volume since mid-2026.
FTC complaints per week
FCC complaints per year
Years shown as '15 to '26; the current year is partial.
Who gets these calls
57% of the FTC complaints about 734 numbers came from people whose own phone number also starts with 734, and 67% from Michigan. Calls that look local to the person receiving them are the signature of neighbor spoofing: robocallers display a number from your own area code because you're more likely to answer.
Where complainants live
- Michigan1,04067%
- California785%
- Illinois503%
- Florida423%
- Georgia342%
What people with 734 numbers report
People whose own number starts with 734 filed 2,437 FTC complaints since Jul 24. 37% were about calls showing another 734 number. The most common named subject was debt-relief pitches.
Area codes on the calls they reported
- 734 (same code)89337%
- 833 (toll-free)1014%
- 877 (toll-free)853%
- 888 (toll-free)743%
- 866 (toll-free)653%
Likely campaigns using 734 numbers
Groups of numbers that drew the same FTC complaint in the same pattern over the last 60 days. The grouping is statistical and doesn't identify who is calling.
Busiest 734 prefixes this month
FTC complaints in the last 30 days, grouped by the first six digits. When one prefix collects complaints about many different numbers, a campaign is usually cycling through that block. The carrier is who NANPA assigned the prefix to, not who made the calls.
| Prefix | Complaints | Numbers | Carrier | Exchange |
|---|---|---|---|---|
| (734) 563-xxxx | 21 | 14 | Onvoy (Sinch) | Pinckney |
| (734) 820-xxxxcampaign | 13 | 13 | Peerless Network | Maybee |
| (734) 875-xxxx | 10 | 10 | Verizon Wireless (Cellco Partnership) | — |
| (734) 872-xxxx | 10 | 10 | Charter (Spectrum Voice) | Newport |
| (734) 766-xxxx | 9 | 9 | Fractel, LLC | Erie |
Carriers operating in 734
NANPA has assigned 701 734 prefixes (NPA-NXX central-office codes) across 33 rate centers: 29% to wireless carriers, 70% to landline and VoIP operators; 71% are pooled blocks shared by several carriers. 3 prefixes were assigned in the last 12 months (newest 2026-09-25). The carrier holding a prefix is who the number was issued through. It says nothing about who is calling, since caller ID is routinely spoofed.
| Carrier | Type | Prefixes | Rate centers | Newest assignment |
|---|---|---|---|---|
| Ameritech (AT&T) | Incumbent landline (ILEC) | 161(23%) | 21 | 2019-10-30 |
| Verizon Wireless (Cellco Partnership) | Wireless | 71(10%) | 18 | 2023-11-06 |
| Omnipoint Communications Midwest Operations, LLC | Wireless | 55(8%) | 10 | 2024-12-31 |
| MCImetro (Verizon Business) | Competitive / VoIP (CLEC) | 52(7%) | 20 | 2015-01-02 |
| Level 3 (Lumen) | Competitive / VoIP (CLEC) | 42(6%) | 19 | 2015-02-04 |
| AT&T Mobility (New Cingular Wireless PCS) | Wireless | 42(6%) | 11 | 2026-09-25 |
| Onvoy (Sinch) | Competitive / VoIP (CLEC) | 42(6%) | 22 | 2023-07-26 |
| PAETEC (Windstream) | Competitive / VoIP (CLEC) | 42(6%) | 26 | 2009-11-06 |
| Teleport Communications America, LLC | Competitive / VoIP (CLEC) | 37(5%) | 26 | 2025-11-14 |
| Interactive Services Network, INC. | Competitive / VoIP (CLEC) | 31(4%) | 17 | 2005-11-28 |
| Comcast (Xfinity Voice) | Competitive / VoIP (CLEC) | 20(3%) | 12 | 2017-02-07 |
| American Messaging Services, LLC | Wireless | 14(2%) | 8 | — |
Largest rate centers (exchanges) by prefixes: Ann Arbor (133), Livonia (64), Wayne (60), Ypsilanti (52), Plymouth (44), Monroe (40), Wyandotte (39), Trenton (27), Romulus (24), Belleville (16). Source: NANPA Central Office Code Utilized Assignments (public, refreshed weekly).
What to do about calls from 734 numbers
Before you call back
- Impostor (government, business, family) is the top named complaint here. Hang up and call the agency, bank or relative back on a number you already know. Government agencies don't demand payment by gift card, wire transfer or crypto. Read about Social Security impostor calls and fake bank fraud calls.
- Look up the full number above. A missed call from 734 with no voicemail is usually a robocall; anyone who needs you will leave a message.
- If it looks like a neighbor's number, it may be spoofed. See calls from your own area code.
- Block repeat callers: iPhone, Android, or your carrier's free filter (Verizon, AT&T, T-Mobile).
Report it in Michigan
- Unwanted sales calls and robocalls: donotcall.gov (FTC). Scams and fraud: ReportFraud.ftc.gov.
- Spoofing, texts and call-blocking problems: FCC consumer complaints.
- State complaints: Michigan Attorney General.
- Michigan formally adopted the FTC's National Do Not Call Registry as its own state list rather than running a separate one, so a single free registration at donotcall.gov covers you. State authorities can still enforce against telemarketers who ignore it, in addition to any federal penalty.
Your FTC and FCC reports are published (without your name or number) in the datasets this page is built from. How to report unwanted calls.
Area code 734: questions answered from the data
Where is area code 734?
Area code 734 serves Ann Arbor, Livonia and Wayne, Michigan, covering Wayne County, Washtenaw County and Monroe County and 1 more county. It has been in service since December 13, 1997. It was split from area code 313.
What time zone is area code 734 in?
Area code 734 is in the Eastern time zone (UTC−5, or UTC−4 during daylight saving time). The current local time is shown at the top of this page.
Which area codes overlay 734?
679 (in service 2025) serves the same area as 734. New numbers there can be issued with any of these codes, and local calls need all 10 digits. A spoofed call can display any of them.
What are calls from 734 numbers usually about?
Since Jul 24, consumers filed 1,563 FTC Do Not Call complaints about 734 numbers. The most common named subject was impostor calls (people pretending to be a government agency, a business or family): 26% of complaints, 29% of them recorded messages. Across all subjects, 50% of callers who answered the question said the call was a robocall.
When do 734 spam calls happen?
29% of the complaints that give a call time describe calls between 10am and 1pm, and 94% came on weekdays, most often on Monday. Times are as consumers reported them.
Are calls from 734 numbers really local?
Not necessarily. 57% of the FTC complaints about 734 numbers came from people whose own phone number also starts with 734, and 67% from Michigan. Calls that look local to the person receiving them are the signature of neighbor spoofing: robocallers display a number from your own area code because you're more likely to answer.
Are 734 robocalls increasing?
In the four weeks to Oct 15, consumers filed 424 FTC complaints about 734 numbers, 32% fewer than the four weeks before.
How do I report a 734 scam call in Michigan?
Report unwanted sales calls and robocalls to the FTC at donotcall.gov, and scams to ReportFraud.ftc.gov. The FCC takes complaints at consumercomplaints.fcc.gov. In Michigan, the Michigan Attorney General also handles consumer complaints about scam calls. Reports feed the public data this page is built from.
Other Michigan area codes
Sources: FTC Do Not Call complaints (unverified consumer reports), published every weekday and available here from Jul 24; FCC Consumer Complaint Data, public record, imported nightly; NANPA numbering records. A number appearing here means consumers reported calls that displayed it. Caller ID can be spoofed.