671 Area Code: Hagåtña, Guam
Area code 671 serves Hagåtña, Guam in the Chamorro time zone, in service since 1997. Consumers have filed 25 unwanted-call complaints against 25 different 671 numbers, 1 of them with the FTC in the last 30 days. Look up the exact number that called you below.
Area code 671 at a glance
- State
- Guam
- Main cities
- Hagåtña
- Local time
- —Chamorro
- In service since
- July 1, 1997
- Local dialing
- 10 digits (area code + number)
- Exchanges
- 1 rate center, 95 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 671 numbers
No single 671 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.
Is it getting worse?
FCC complaints about 671 numbers peaked in 2016 (6); the FTC's daily Do Not Call data has carried most of the volume since mid-2026.
FCC complaints per year
Years shown as '15 to '26; the current year is partial.
Carriers operating in 671
NANPA has assigned 95 671 prefixes (NPA-NXX central-office codes) across 1 rate center: 15% to wireless carriers, 0% to landline and VoIP operators. 3 prefixes were assigned in the last 12 months (newest 2025-12-16). 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 |
|---|---|---|---|---|
| Teleguam Holdings, LLC | Unclassified | 53(56%) | 1 | 2025-09-08 |
| Pti Pacifica INC. | Unclassified | 19(20%) | 1 | 2012-02-23 |
| Guam Wireless Telephone Company, LLC | Wireless | 14(15%) | 1 | 2025-12-16 |
| Choice Phone, LLC dba Iconn | Unclassified | 2(2%) | 1 | 2004-08-24 |
| Docomo Pacific, INC. | Unclassified | 2(2%) | 1 | 2010-02-03 |
| Pacific Data Systems | Unclassified | 2(2%) | 1 | 2010-11-04 |
| Pti Pacifica INC. dba It&E | Unclassified | 2(2%) | 1 | 2009-09-03 |
| Pti Pacifica INC. dba It&E | Unclassified | 1(1%) | 1 | — |
Source: NANPA Central Office Code Utilized Assignments (public, refreshed weekly).
What to do about calls from 671 numbers
Before you call back
- Medical & prescriptions is the top named complaint here. Don't confirm your Medicare or insurance number to a caller. Medicare won't cold-call you to sell braces, test kits or plans. Read about Medicare scam calls.
- Look up the full number above. A missed call from 671 with no voicemail is usually a robocall; anyone who needs you will leave a message.
- Block repeat callers: iPhone, Android, or your carrier's free filter (Verizon, AT&T, T-Mobile).
Report it in Guam
- Unwanted sales calls and robocalls: donotcall.gov (FTC). Scams and fraud: ReportFraud.ftc.gov.
- Spoofing, texts and call-blocking problems: FCC consumer complaints.
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 671: questions answered from the data
Where is area code 671?
Area code 671 serves Hagåtña, Guam. It has been in service since July 1, 1997.
What time zone is area code 671 in?
Area code 671 is in the Chamorro time zone (UTC+10 all year). The current local time is shown at the top of this page.
How do I report a 671 scam call in Guam?
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. Reports feed the public data this page is built from.
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.