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603 (also referred to as Numbering Plan Area) is a numbering plan code designated for New Hampshire. Phone area codes in North America were introduced in 1947.

Most of the telephone numbers in the numbering plan are assigned to United States and Canada with a small part assigned to some locations in the Caribbean

East Concord, Derry, Dover, Keene, Manchester, Nashua, Portsmouth, Rochester are the major cities located in NPA Code 603

603 Area - posts

Report for 1-6036649315 - 2020-02-14
Same with me as the caller who called at 11:15 a.m. this morning using a different name calling about 2-3 times every day. Never leaves a message and has called several times over the past 3-4 months. Very annoying indeed!

Report for 1-6037824660 - 2020-01-29
They say the same things that I am being investigated for 4 allegations ... The Sheriff in my area will be waken in

Report for 1-6036897700 - 2020-01-16
This number calls every day every day and it says the IRS has filed suit against me. When I call it back I cannot understand it. This needs to Stop!!

Report for 1-6039996888 - 2019-11-13
They are at it again - they called and left a message but it was an automated response, not any live person. Said I would be arrested if I did not call back. They are still making the rounds

Report for 1-6035943259 - 2019-11-12
Got a call from this number from a gentleman I could barely understand with very poor english. Told me that it is not a "personal matter" and I know that if it is it most likely someone I know. If it is someones personal business they must have information already. He said he will bring to court papers today and that it will be a "garnishment." I didn't listen to any further. The next time they call I am going to ask for the address for them to send them legal paperwork so that I can put them away for harassment and scamming.

Report for 1-6032532523 - 2019-10-23
Same thing happened to me yesterday. They called 2x. The called and did a prerecording which started in early high school English. Then the recording repeated itself 4 times with no info other than an "important matter" to discuss.I hung right after that and blocked the #.

Report for 1-6036897700 - 2019-09-23
This is a collection agency I think. I spoke with another collector and she said that this is some group in the area that does collections for businesses and is legit. It would be nice if these people actually showed up when you have to run errands, or showed up at a business that does have business with these guys.The number I get is 800-401-2700, the "unknown caller" tells me that you have called before as you will be blocked. I guess that there is a new scam going on that is going to give you a bogus ID or a number that does not show up. If we could catch these people, we could shut these jerks down for a very long time, if they are truly scammers who try to get money from innocent people.I also get a call from the "877" number and don't know who it is calling me but I will give them a taste of their own medicine and will call 800-401-2700 back and see who the hot chick is.

Report for 1-6037824660 - 2019-09-02
they call my cell constantly and I never pick up the phone unless they leave a message

Report for 1-6039996888 - 2019-08-08
They call everyday, I finally answered and they hung up. I blocked them

Report for 1-6036649315 - 2019-07-19
I got the same massage from Lisa Harris.

Report for 1-6036897700 - 2019-07-09
Called and left no message. I never answer my landline when I don't recognize the number, especially if it's a number I know has a caller ID blocker. I do check it out, I think.

Report for 1-6037824660 - 2019-06-11
Just a call on my cell phone. No message left.

Report for 1-6036649315 - 2019-05-14
A message was left on my phone from a female voice, saying "to speak with a live agent, please press 1", I'm assuming it was a scam because the only way I know a live agent with a telephone number that starts with a 9 would call is because they have to call a person who answers when they call back. This should be illegal, especially since they called my cellphone, which is unlisted and unpermitted to be disclosed to anyone!

Report for 1-6035943259 - 2019-05-13
I answered and it was someone asking for me, then when i asked who it was they hung up on me.

Report for 1-6036897700 - 2019-05-04

Report for 1-6039996888 - 2019-02-08
Rec'd call on cell phone, no message left.

Report for 1-6032532523 - 2019-01-28
Received a call from this number at 9:50 AM.

Report for 1-6035943259 - 2019-01-21
A lady named jessica called me offering 9,000 for a government grant. Sounds like a scam to me

Report for 1-6037824660 - 2019-01-11
Call every day. No caller. Blocked

Report for 1-6037824660 - 2018-12-24
We had this happen to us. My best advice is to call the IRS to tell them you want to resolve the issue and give them all the information, or they can refer it directly to the local FBI office if you do go that far.

Report for 1-6036649315 - 2018-11-21
Just received this call on my cell number, left no message.

Report for 1-6036897700 - 2018-11-04
Just got call from this number. It's the third time this week from different numbers with same message as mentioned by others. The number they give to call them back at is 786-220-9111, but in voicemail they leave a reference number of 903210. Definitely a scam of some kind. Don't know how to get them to stop.

Report for 1-6036897700 - 2018-10-15
Called me 4 times today and it is only 1 am. Don't know who it is. They never leave a voice mail

Report for 1-6039996888 - 2018-10-02
Called the number back. Recorded message states that it was a charity that does not make these kinds of calls. I pressed 1 and waited to speak to somebody. A recorded message tells you that my call will be transferred to a live operator and a live person will then ask for your number. I did not give it to them but asked for any information regarding their charity or how they got my number. The only information I was given during that call was that the charity was using phones to contact people and to leave messages.I asked several times for all of my information so that I could review their charity website so that I could see that they use a charity to solicit donations. That got me nowhere.

Report for 1-6032532523 - 2018-09-29
I just received this call, and when I answered I just listened. I said Hello maybe 20 times, and the guy on the other end went silent for a while so I hung up. Then I came on here to see if anyone knows what the heck this is.