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231 is a numbering plan code assigned to Michigan. Phone area codes in North America were first used in 1947.

Most of the telephone numbers in the North American numbering plan are assigned to USA and Canada with a small portion assigned to some caribbean nations

Major cities located in phone number code 231 are as follows: Muskegon, Norton Shores, Shelby

Area 231 / submissions

Report for 1-2312654783 - 2020-09-12
Received a call from them at 5am this morning (6-21-13) no answer or VM.

Report for 1-2316525884 - 2020-08-29
The calls are coming from the emergency rooms of the local hospitals in order to collect money for the bill from the insurance company. The reason you hear it is usually because these hospitals will put a message up near the door so you can see who is calling and they collect their own money when you pick up if they call again.

Report for 1-2319029632 - 2020-08-19
Got a call from this number on my cell (a local #) and it only rang 4 times. My cell is on "do not call". I called the number back and it just rang.

Report for 1-2317227111 - 2020-08-19
They called my landline on 07/28/2019 and left a VM about a credit card offer to lower my interest rate. I did not press the option to talk to anyone.

Report for 1-2316525884 - 2020-08-14
Has called my cell three times today. I did not answer it and i will not answer it.

Report for 1-2312654783 - 2020-06-22
I got this phone call today . . . . and it just didn't have the slightest bit of logic, either. The voice was clearly a recording of a foreign accent. Said "if you want a great deal, press 1..". Then, as I am typing this, I receive a call from a different number. The same accent, telling me "If you want to talk to anyone press 1.." I hung up the phone. It doesn't make any sense whatsoever. These people are just trying to rip you off. They're just trying to get your money.

Report for 1-2313892317 - 2020-06-20
They call all the time. I asked the guy to be removed from the list. They get really nasty with me. Called my boss to complain. I have blocked the number and they still get through.

Report for 1-2312209013 - 2020-06-10
They called me and asked if they could speak to a specific name which I was not home when they called. I told them in a very serious voice, "He is not here. Can I take a message?" There was a long pause, then "He- he is okay," and they hung up. I had blocked the number from my phone earlier so that they would not get through. I have not tried to call back, but I suspect they would not answer. If by any chance they are a collection agency and I owe them money, I would like to be placed on the DO NOT CALL LIST!!! But there is a chance it might be a Scam where they ask for information so that they can use the information they get out the call. I have no problem reporting them and any other numbers they call from if it is a scam. But I won't call back, not for anything of that nature.

Report for 1-2319029632 - 2020-05-31
Same here. I didn't answer it.

Report for 1-2313892317 - 2020-05-26
Caller claimed to be the US Attorney General's office. He was obviously not familiar with US law. Called the number he had previously given, 408-769-1495, and found himself on an automatic call list. Called from office phone, 408-769-1495 -- he hung up. It's a shame that there are telemarketing companies out there who have nothing better to do than to waste other people's time.

Report for 1-2312377931 - 2020-05-21
Called cell, didn't answer. Left no message

Report for 1-2319029632 - 2020-05-20
These idiots keep calling about the death of my brother. They have also called my brother's mother, sister and father!! This is ridiculous, how can these people get away with this. The Federal Do Not Call is a joke.

Report for 1-2319029632 - 2020-05-16
Caller claimed to be from IMS and said I had won a free trip to the Bahamas. (I do not) when I asked what the problem was with getting the free trip, she hung up.

Report for 1-2312377931 - 2020-05-04
Same. Call came from the 208-515-4144 but left this phone number. Not sure why they didn't leave a message on VM. When I called back there was a message asking to be put on a do-not-call list.

Report for 1-2312242041 - 2020-04-29
They keep calling and not saying anything. I get tired of the calls especially since I am sick as can be that my health insurance is going to expire fast. It's like I'm on some kind of time bomb. This can't keep up.

Report for 1-2319958899 - 2020-04-28
Called number back and it said not in service. Scammer

Report for 1-2313006276 - 2020-04-25
They left message saying to call back immediately or they were going to issue an arrest warrant

Report for 1-2319958899 - 2020-04-12
A robocall from UN-known health insurance offering health insurance from Blue Cross, Blue Shield, and UN-known offering health coverage for $14.99 per month, with an opt-out to be removed from their calling list.

Report for 1-2312242041 - 2020-04-05
Called. No message left. Blocked

Report for 1-2318322941 - 2020-03-31
Texted me about a relative to contact immediately regarding "a legal document". Never any identifying info.

Report for 1-2312242033 - 2020-03-29
called my cell phone at 7:45 am. I did not answer and they hung up.

Report for 1-2317567618 - 2020-03-22
They called saying from the US government wanted a return call and then they hung up. they called again today and said that they were going to charge me $6000.00

Report for 1-2312161413 - 2020-03-02
Received a call and voicemail. Same as others.

Report for 1-2312242041 - 2020-02-21
Called around 9:00. I did not answer. Left no messages.

Report for 1-2312377931 - 2020-02-18
They called and did not leave a message. This number is now blocked.

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