Location
Boston, MA
Reported numbers
625
Reports in last 7 days
0
Reports in last 30 days
0
Last activity
Aug 29, 2025

About area code 857

Area code 857 is commonly associated with Boston, MA. The most common report type in this area code is unknown, with 653 reports. Recent activity has been recorded for numbers in this area code, helping users identify possible spam or unwanted calls.

What people report about area code 857

Recent reports for area code 857 are mostly about unknown callers, and many users also describe the calls as suspicious. A common pattern is a vague or unhelpful voicemail that still leaves the call feeling untrustworthy.

Asked to call back Unknown callers Suspicious or scam-like Vague or missing voicemail Repeated calls
“Received a call on my landline from this telephone number. I monitored the progress using a feature on my home telephone system. Head a recorded woman's voice as soon as the tel...”
“Called and left no voicemail. Doesn’t register as spam and can’t find any info other than it’s a landline in Brighton”

What stands out about area code 857

Reports are spread across several active prefixes within area code 857, which suggests the activity is not limited to one isolated number block. The page also has usable geographic context through Boston, MA, which helps users decide whether a call looks locally relevant or completely unfamiliar.

Should you answer calls from area code 857?

Because many reports on this page involve unknown callers and suspicious behavior, the safest option is usually to let unexpected calls go to voicemail first and verify the number before responding.

  • Do not trust caller ID alone.
  • Search the full phone number before calling back.
  • Be careful with callers who create urgency or ask for payment.
  • Never share card details, banking data, passwords, or verification codes with an unknown caller.
  • If the call is legitimate, the caller will usually leave a clear voicemail.

Approximate location

Area code 857 is commonly associated with Boston, MA. The map below shows an approximate location reference and may not represent the full coverage area.

Reported call types

Type
Reports
Share
Unknown
653
93.3%
Silent call
20
2.9%
Scam suspicion
16
2.3%
SSN scam
3
0.4%
Survey
2
0.3%
Telemarketer
2
0.3%
Debt collector
1
0.1%
Fax
1
0.1%
Students loan scam
1
0.1%
Valid
1
0.1%

Popular prefixes in area code 857

857-444

Numbers: 42 Reports: 46
Last activity: Nov 25, 2021

857-214

Numbers: 27 Reports: 31
Last activity: Mar 10, 2021

857-326

Numbers: 23 Reports: 27
Last activity: Mar 20, 2023

857-557

Numbers: 22 Reports: 23
Last activity: May 11, 2021

857-302

Numbers: 16 Reports: 20
Last activity: Sep 2, 2021

857-343

Numbers: 20 Reports: 20
Last activity: Feb 25, 2021

857-347

Numbers: 18 Reports: 19
Last activity: Jan 14, 2022

857-305

Numbers: 15 Reports: 17
Last activity: Mar 12, 2021

857-453

Numbers: 12 Reports: 15
Last activity: Jun 12, 2021

857-990

Numbers: 14 Reports: 14
Last activity: Sep 29, 2021

857-226

Numbers: 13 Reports: 13
Last activity: Nov 2, 2022

857-957

Numbers: 12 Reports: 12
Last activity: Feb 5, 2022

Recently reported numbers

How to check if a call is legitimate

This page gives area-code-level context, but the exact number still matters more. Use the reports, recent activity, and voicemail details together before deciding whether to respond.

  1. Search the exact phone number, not just the area code.
  2. Review recent reports and call type patterns.
  3. Check whether the caller left a clear voicemail with a name and reason for calling.
  4. Do not trust threats, payment demands, or urgent account warnings without independent verification.
  5. Contact banks, delivery firms, insurers, courts, or government agencies through their official websites or phone numbers.

FAQ about area code 857

Where is area code 857 located?

Area code 857 should be treated as a general reference point, not proof of the caller's exact location.

Why do so many calls from area code 857 seem suspicious?

Recent reports for area code 857 are mostly about unknown callers, and many users also describe the calls as suspicious. A common pattern is a vague or unhelpful voicemail that still leaves the call feeling untrustworthy.

What can prefix 857-444 tell me?

Reports are spread across several active prefixes within area code 857, which suggests the activity is not limited to one isolated number block.

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